MODELS - Pentair Water Literature
Contents
1. Fluid End Assembly MA 155M MA 155M HD Description Valve Cover 7201 0587 00C Valve Cover Seal 7201 0081 00A 2 Hex Hd Pipe Plug 170 012002 250 Liquid End Forged Steel Consult Factory 1 4 x 5 7 8 Stuffing Box Stud 7507 2738 00A 1 4 8 Thrd Nut Heavy Hex 141 114008 243 7 8 x 3 7 8 Stud Discharge Flange Variable x 3 5 16 Valve Cover Stud 7507 2793 00A 8 Thrd Nut Heavy Hex 133 100008 243 5 8 x 2 3 4 Stud Suction Flange Variable 1 8 7 UN x 2 3 4 Sk Hd Cap Sw 100 118234 454 Liquid End to Power Frame 2 3 4 5 6 7 8 9 29 Qty 3 per pump Stuffing Box Assembly MA 155L RO 261 Plunger Diameter Plunger Chrome Oxide 1 7201 0325 32B 7201 0039 00A Stuffing Box Seal Nitrile Rubber 3 7201 0007 00A Stuffing Box Steel 4 7201 0584 00B Stuffing Box Alum Bronze 4 7201 0054 10C 7201 0582 00B Gland Nut Alum Bronze 5 7201 0002 00B 7201 0325 31B 7201 0039 00A 7201 0007 00A 7201 0584 00B 7201 0054 10C 7201 0582 00B 7201 0002 00B 7201 0325 30B 7201 0039 00A 7201 0007 00A 7201 0584 00B 7201 0054 10C 7201 0582 00B 7201 0002 00B 7201 0325 29B 7201 0039 00A 7201 0007 00A 7201 0584 00B 7201 0054 10 7201 0582 00B 7201 0002 00B 7201 0325 28B 7201 0039 00A 7201 0007 00A 1201 0790 10 722. 15 Installing Crankshaft 15 Shim Adjustment of Tapered Roller Bearings 15 Installation of Crankshaft Oil Seal 15 Disassermbhy 15 Connecting Rod Crosshead Extension Rod Crosshead Pin and Wiper Box Assembly Disassembly 16 ET 16 Installing Wrist Pin Bushngs sese 16 Bolting the Wrist Pm 16 Order of Assembly 16 17 ONES COOP d totus se 17 Wiper Box 17 E 17 Poly Pak 17 Mechanical Oil Geal rreren 17 Double Lip Wiper 17 18 Double Lip Canned Wiper 18 Inserting the Extension 18 PENTAIR MYERS APLEX SERIES Stuffing Box Packing and Plunger Assemblies 18 Genaral s Ee Rete 18 Spring Loaded Packing 18 J Style Stuffing Box amp Plunger Assembly Styles 838 and 858 19 Inserting the Plunger ssssssnssnerisrrsrrrrrrrrrereeee 19 Installing the Gland 19 Installing the Stuffing 19 Connecting the P Unger ouod sero oo 20 Packing geht tat reach eadein erba o bd sa Fed dr E o 20 a ae E E 20 Disc Va
3. Average Crosshead Speed At 450 rpm Minimum Life Expectancy Main Bearings Lio Liquid End Plunger Size Range Diameter 338 fpm 20 000 hr 3 1 4 Thru 4 Maximum Continuous Working Pressure Hydrostatic Test Discharge 2 208 psi 3 300 psi Suction Connection Size 6 NPT Hydrostatic Test Suction gt PENTAIR 425 psi MYERS APLEX SERIES Approximate Weights With Forged Steel Liquid End 2 900 Ibs RO 261 ENGINEERING DATA RO 261 ENGINEERING DATA Power End Model Quintuplex Pump R0 261 Maximum Input HP at Speed 200 at 450 rpm Liquid End Continued Plunger Type Rokide Stainless Steel Chromium Oxide Coated 316 S ST Rated Continuous Plunger Load 11 750 Ibs Stroke 4 1 2 Maximum Rated Continuous Speed Normal Continuous Speed Range 450 rpm 300 to 420 rpm Stuffing Boxes Field Removable and Replaceable Aluminum Bronze Stainless Steel B148 C955 316 S ST Minimum Speed 100 rpm Oil Capacity 22 U S Quarts Viscosity S S U at 210 F Power End Oiling System 70 to 84 Splash Packing Types Available Gland loaded Nonadjustable Spring loaded Cup Type Spring loaded Braided Teflon amp Kevlar Spring loaded Garlock Style 838 Style 120X Style 140 141 Style 8921K Power Frame One Piece Cast Iron Studs Material ASTM Nuts Material ASTM A193 Grade B7 Cadmium Plated
4. Valve Cover and Cylinder Head Plugs 416 S ST or 316 S ST Seals Stuffing Boxes Valve Covers Bolting High Strength Heat Treated Buna N Alloy Steel Available Disc Valve Types Standard Acetal Resin Optional Hardened and Lapped Delrin 17 4PH S ST Valve Set Material Hardened and Lapped 17 4PH S ST Valve Seat Liquid Passage Areas Plate Disc Valves Delrin or S ST 3 9 sq in Average Liquid Velocity with 2 3 4 Plungers at 450 rpm Thru Seat Suction Manifold Discharge Manifold 8 5 fps 3 9 fps 16 9 fps eneral Overall Dimensions Length Width Height 54 3 16 43 22 Approximate Weights With Aluminum Bronze Liquid End With Forged Steel Liquid End 2 900 Ibs 2 700 Ibs SC 230 ENGINEERING DATA SC 230 ENGINEERING DATA Power End Model Triplex Pump SC 230 Maximum Input HP at Speed 310 at 450 rpm Rated Continuous Plunger Load 18 320 Ibs Stroke 4 1 2 Maximum Rated Continuous Speed Normal Continuous Speed Range 450 rpm 150 to 420 rpm Minimum Speed 100 rpm Oil Capacity 22 U S Quarts Viscosity S S U at 210 F Power End Oiling System 70 to 84 Pressure Lubrication System Power Frame One Piece Cast Iron Crosshead Full Cylindrical Crosshead Diameter x Length Cast Iron 5 3 4 x 6 3 16 Crankshaft Ductile Iron Crankshaft Diameters At Drive
5. Wrist Pin Bushing SAE 660 Diameter x Width 2 5 8 x 3 5 8 Main Bearings Tapered Roller Timken Crankpin Bearings Precision Automotive Steel Backed Babbitt Lined Extension Pony Rod Diameter Material Connecting Rod Automotive Type 2 1 2 17 4PH S ST Ductile Iron Average Crosshead Speed At 450 rpm 338 fpm Minimum Life Expectancy Main Bearings Lio iquid End Plunger Size Range Diameter 60 000 hr 1 3 4 Thru 2 3 4 Maximum Continuous Working Pressure 3 430 psi Hydrostatic Test Discharge 5 400 psi Discharge Connection Size 6 ANSI 1500 Suction Connection Size 8 ANSI 150 Hydrostatic Test Suction 425 psi Available Liquid End Materials ASTM Nickel Aluminum Bronze Forged Steel Block gt PENTAIR B148 C955 A105 MYERS APLEX SERIES Liquid End Continued Plunger Type Rokide Stainless Steel Chromium Oxide Coated 316 S ST Aluminum Bronze Carbon Steel Stuffing Boxes Field Removable and Replaceable B148 C955 1020 Packing Types Available Gland loaded Nonadjustable Spring loaded Cup Type Spring loaded Braided Teflon amp Kevlar Spring loaded Garlock Style 838 Style 120X Style 140 141 Style 8921K Studs Material ASTM Nuts Material ASTM A193 Grade B7 Cadmium Plated A194 Grade 2 Valve Cover and Cylinder Head Plugs 416 S ST or 316 S ST Seals Stuf
6. x 3 Sk Hd Cap Sw Liquid End to Power Frame Fluid End Assembly MA 155M MA 155M HD 105 118234 454 Description Valve Cover 1201 0087 00B Valve Cover Gasket 7201 0081 00A 3 4 Hex Hd Pipe Plug S ST 170 034002 405 Liquid End Nickel Aluminum Bronze 7201 0079 00E 1 1 4 x 5 7 8 Stuffing Box Stud 1 1 4 8 Thrd Nut Heavy Hex 7507 2738 00A 141 114008 243 7 8 x 3 7 8 Stud Discharge Flange 7507 2736 00A 7 8 9 Thrd Nut Heavy Hex 133 078009 243 1 x 3 5 16 Valve Cover Stud 7507 2793 00A 1 8 Thrd Nut Heavy Hex 133 100008 243 5 8 x 2 3 4 Stud Suction Flange 7507 2732 00A 5 8 11 Thrd Nut Heavy Hex 133 058011 243 eo gt PENTAIR Bolt Socket Head 1 1 8 x 2 3 4 Lg Liquid End to Power Frame 105 118234 454 MYERS APLEX SERIES 28 Fluid End Assembly 628 Description Fluid End Steel Consult Factory Valve amp Cylinder Cover 7201 0575 00B Valve amp Cylinder Cover Seal 7201 0008 00A 1 1 4 x 5 7 8 Stud Stuffing Box 7507 2738 00A 1 1 4 x 4 Stud Valve Cover 7507 2737 00A 1 1 4 8 Thrd Nut Hex 141 114008 243 1 2 Pipe Plug Hex Hd 170 012002 405 1 1 8 Socket Hd Cap Screw Not Shown 105 118234 454 Liquid End to Power Frame
7. 155M stuffing boxes also apply oil liberally to the O D of each extension rod to allow easy passage through the wiper box seals A soft rubber mallet is recommended to avoid any damage to the plunger face or its threads Remember The fragile nature of packing rings and plunger surfaces deserves your respect and avoidance of careless damage to these key elements INSTALLING THE GLAND Considerable downward pressure on the gland is required to compress the spring to move the packing into location and to start the threads of the box Once the gland threads are started screw it down completely until it makes up tightly against the face of the box for spring loaded packing For Hi Lo J Style or Gland adjusted packing tighten the gland until it is seated firmly against the packing INSTALLING THE STUFFING B X Myers Aplex Series stuffing boxes derive their alignment from the bores of the power frame and the faces of the fluid end So these surfaces must be cleaned of rust scale and dirt before assembly is begun Wash all contacting surfaces with clean solvent and dry with a clean shop towel A nitrile rubber seal is used to seal between the face of the fluid end must be flat clean and smooth and the face of the box Replace if damaged All stuffing boxes are retained by four large studs and nuts which extend through the power end serving to clamp the box and the power frame tightly against the fluid end face These
8. A194 Grade 2 Crosshead Full Cylindrical Cast Iron Seals Stuffing Boxes Valve Covers Cylinder Heads Buna N Crosshead Diameter x Length 5 3 4 x 6 3 16 Bolting High Strength Heat Treated Alloy Steel Crankshaft Ductile Iron Crankshaft Diameters At Drive Extension At Tapered Roller Bearings At Crankpin Bearings Diameter x Length 4 500 4 499 4 3 4 4 1 2 x 3 3 4 Available Valve Types Standard Acetal Resin Optional Hardened and Lapped Delrin 17 4PH S ST Valve Seat Liquid Passage Areas Plate Disc Valves Delrin or S ST 6 54 sq in Crosshead Wrist Pin Case Hardened and Ground AISI 8620 Wrist Pin Bushing SAE 660 Diameter x Width 2 5 8 x 3 9 8 Main Bearings Tapered Roller Timken Crankpin Bearings Precision Automotive Steel Backed Babbitt Lined Extension Pony Rod Diameter Material Connecting Rod Rifle Drilled 2 1 2 17 4PH S ST Ductile Iron Average Liquid Velocity 4 Plungers at 450 rpm Thru Seat Suction Manifold Discharge Manifold Overall Dimensions Length Width Height 10 8 fps 3 7 fps 16 1 fps 55 3 4 43 22 Average Crosshead Speed At 450 rpm 338 fpm Minimum Life Expectancy Main Bearings Lio iquid End Plunger Size Range Diameter 60 000 hr 3 1 4 Thru 4 Maximum Continuous Working Pressure 1 415 psi Discharge Connection S
9. ANY PENTAIR MYERS PRODUCT OR PARTS THEREOF PERSONAL INJURY AND OR PROPERTY DAMAGE MAY RESULT FROM IMPROPER INSTALLATION PENTAIR MYERS DISCLAIMS ALL LIABILITY INCLUDING LIABILITY UNDER THIS WARRANTY FOR IMPROPER INSTALLATION PENTAIR MYERS RECOMMENDS INSTALLATION BY PROFESSIONALS Some states do not permit some or all of the above warranty limitations or the exclusion or limitation of incidental or consequential damages and therefore such limitations may not apply to you No warranties or representations at any time made by any representatives of Pentair Myers shall vary or expand the provision hereof gt PENTAIR MYERS APLEX SERIES 1101 MYERS PARKWAY ASHLAND OHIO USA 44805 419 289 1144 WWW FEMYERS COM Warranty Rev 12 13
10. against leaking plunger packing The seals require no adjustment only correct and careful assembly POLY PAK SEAL Before Jan 2015 Only This seal keeps oil from leaking out of the power frame Developed by the Parker Seal Group this patented rod seal employs a soft nitrile rubber O ring to energize a special hard polyurethane Molythane shell by forcing the inner lip against the rod and the outer lip against the housing bore as shown The Poly Pak seal is inserted into its counter bore with its lips directed toward the oil in the crankcase Will not work if installed backward MECHANICAL OIL SEAL Before Jan 2015 Only The oil seal is to keep contamination out of the power frame With the box positioned in a hydraulic press install the backup seal against the Poly Pak seal with the lips of both seals facing downward The mechanical seal contains a garter spring Check to see that this spring is still properly located and in its position The mechanical seal has a metal case which serves to force the Poly Pak seal into its cavity energizing its lips Apply oil lightly to the bore of the box before pressing each seal into its counterbore DOUBLE LIP WIPER SEAL Jan 2015 to Current This seal keeps oil from leaking out of the power frame Developed by the Parker Seal Group this double lipped wiper provides an additional beveled sealing lip yielding excellent film breaking and the driest rod sealing avai
11. broken or cracked belts Do not operate belts on sheaves having worn rusted greasy or broken grooves Shut off power to driver before servicing drive or pump WARNING Do not operate without appropriate guards in place PENTAIR MYERS APLEX SERIES DIRECTION OF ROTATION Before placing pump in operation check that crankshaft rotation agrees with the arrows cast on top of the power frame by briefly jogging the electric motor Crankshaft rotation must be clockwise as viewed from the right side of pump If pump is gear driven remember that the pinion shaft turns opposite the crankshaft if using a single reduction geared drive or in the same direction as the crankshaft when using a planetary gear AUTOMATIC SAFETY SHUTDOWNS Carefully check all electric shutdown devices present such as crankcase oil level discharge pressure vibration lubricator oil level motor thermostat etc CRANKSHAFT ASSEMBLY GENERAL Myers Aplex Series crankshaft suspension uses two single row tapered bearings which are shim adjusted to provide the correct running clearance Thorough cleaning of all components prior to assembly is essential Power frame shaft bearings and retainer must be scrubbed with clean solvent such as kerosene before starting Remove any oil dirt rust and foreign matter which might prevent the correct fit up Crankshaft journals are critical Remove all burrs rust spots and nicks paying special att
12. four stud nuts must be evenly tightened Using a socket socket extension and torque wrench tighten clean well oiled threads and nut faces Stud Threads 1 1 4 BUN at 900 950 ft Ibs 1 8UN at 350 400 ft Ibs SC 230 MA 155L MA 155M MA 155M HD CONNECTING THE PLUNGER Install the metal baffle plate on the extension rod and roll the pump slowly until the extension rod male threads just touch the mating plunger female threads Applying a pipe wrench to plunger knurled area thoroughly tighten the connection Do not use a cheater when connecting plunger to extension rod PACKING Packing life for aramid fiber packing may be improved in some applications by regular systematic lubrication An optional force feed lubricator assembly is often recommended especially for pumps on continuous duty This provides regular controlled supply of lubricant lowering friction and heat Additionally the regular application of the correct lubricant aids dissolving of salt and gyp tending to build up on the plungers in produced water applications For this service Rock Drill Lubricant is a popular and effective packing lubricant Plungers in ethane or other very cold liquid services may use brake fluid This fluid does not congeal into a solid which cannot enter the packing Consider the use of an air sealed cradle into which dry instrument air may be directed excluding the moistur
13. good insurance against future difficulty SETTING THE VALVE SEAT Effective pressure sealing between tapered male seat and tapered female fluid end deck is possible only if the tapers are absolutely clean and dry just prior to installation Thoroughly clean surfaces using a clean solvent Dry with a clean shop towel Examine the cleaned fluid end deck tapers and remove all deposits of gyp salt or other incrustation Using emery cloth lightly rub out any minor imperfections found in the deck taper The puller stem and puller head are provided with tapered locking threads Screw them together using two pipe wrenches applied to the knurled areas provided Then screw the valve seat onto the puller head by hand until it shoulders against the puller shoulder Do not tighten Lower the seat and puller assembly into the fluid end squarely setting the seat into the deck Then pound the top of the stem with a 6 pound hammer Unscrew the head and stem from the seat using a 1 2 bar or screwdriver into the hole provided at the top end of the stem INSTALLING 0 RINGS ABRASION RESISTANT SPRING AND CAGE Install nitrile O ring over the threaded section of the seat and position it at the bottom of the threads Install the polyurethane insert into the valve The insert may be heated in hot water to make it flexible enough to stretch over the valve Position the valve into the seat Install the valve spring Apply anti seizing lubri
14. gt gt PENTAIR MYERS APLEX SERIES MUDELS MA TdoL MA T55M MA 195M HD ball RO 201 TRIPLEK PUMPS INSTALLATION AND SERVICE MANUAL NOTE To the installer Please make sure you provide this manual to the owner of the equipment or to the responsible party who maintains the system Part AP 03 105 2015 Pentair Ltd 03 19 15 Engineering Data MA 155 D i Seo eec ie EEN 3 EE 4 MA T55M HBD tire oet Pets 5 E 6 RO 26 3 EA eg rdi ete pci ible bM 7 Dimensional Data 8 9 Installation Operation Lubrication Maintenance and Storage Instructions 10 SIE VE 10 Stora gees e d e oh 10 Pump Location and Piping Design 10 SUCTION PIPING sac euet eto tane tege 10 11 Acceleration Head 11 Discharge Piping 11 12 Bypass PIPING 12 LUBCON 12 VSBelt DriVe s im eo oe ete oer Cows 12 14 Suggested Piping System for Plunger Pumps 13 Direction of 14 Automatic Safety Shutdowns 14 Crankshaft Assembly 14 erc EIE 14 Tapered Roller Bearings 14 15 Cup Installation
15. no circumstance will Pentair Myers be responsible for the cost of field labor travel expenses rented equipment removal reinstallation costs or freight expenses to and from the factory or an authorized Pentair Myers service facility This limited warranty will not apply a to defects or malfunctions resulting from failure to properly install operate or maintain the unit in accordance with the printed instructions provided b to failures resulting from abuse accident or negligence to normal maintenance services and parts used in connection with such service d to units that are not installed in accordance with applicable local codes ordinances and good trade practices e if the unit is moved from its original installation location f if unit is used for purposes other than for what it is designed and manufactured g to any unit that has been repaired or altered by anyone other than Pentair Myers or an authorized Pentair Myers service provider h to any unit that has been repaired using non factory specified OEM parts Warranty Exclusions PENTAIR MYERS MAKES NO EXPRESS OR IMPLIED WARRANTIES THAT EXTEND BEYOND THE DESCRIPTION ON THE FACE HEREOF PENTAIR MYERS SPECIFICALLY DISCLAIMS THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR ANY PARTICULAR PURPOSE Liability Limitation IN NO EVENT SHALL PENTAIR MYERS BE LIABLE OR RESPONSIBLE FOR CONSEQUENTIAL INCIDENTAL OR SPECIAL DAMAGES RESULTING FROM OR RELATED IN ANY MANNER TO
16. parts Liquid end cylinder failure Wear of power end parts excessive gt PENTAIR Possible Cause Water in power end crankcase Drain Refill with clean oil Worn or noisy gear Replace Worn or loose main bearing crank pin bearing wrist pin bushing plunger valve seat low oil level NOTE High speed power pumps are not quiet Checking is necessary only when the sound is erratic Improper installation Adjust or replace Add oil to proper level Install per instructions Improper or inadequate lubrication Lubricate per instructions Improper packing selection Change to correct packing Scored plungers Replace Worn or oversized stuffing box bushings Repair or replace Check bore and outside diameter of bushings frequently Many times plungers are replaced and bushings ignored Plunger misalignment Abrasive or corrosive action of liquid Realign Plungers must operate concentrically in stuffing box Check valves and seats frequently at start up to determine schedule for replacing etc Eliminate sand abrasive air entering pump Incorrect material Air entering suction system Poor lubrication Install correct materials Eliminate air NOTE Pitting often leads to hairline cracks which ends in cylinder failure Replace oil as recommended in instructions Keep oil clean and at correct temperature Be sure oil is reaching all bear
17. the taper INSTALLING CRANKSHAFT SHIM ADJUSTMENT OF TAPERED ROLLER BEARINGS To provide for crankshaft thermal expansion sufficient shims located beneath bearing retainer flange must be installed to provide 005 to 015 lateral end play when shaft is cold A feeler gauge and a 1 micrometer caliper are required Install a trail shim set on one side of the pump Tighten the flange bolts on this side only CAUTION Lubricate the frame bores and the O ring seals located in each carrier to prevent damage during entry Oil the bearings Omitting the shim set on the opposite side draw up the carrier evenly tightening its cap screws Rotate the crankshaft slowly by hand seating all rollers into running position Measure the gap existing between the frame face and carrier flange The correct thickness of the shim set to be installed on this side equals the measure gap plus about 010 No preload After installing above shim set a dial indicator may be used against the end of the shaft to confirm the shim selection Bump the shaft in one direction and zero the dial indicator Bump the shaft the opposite way If shimming is correct the shaft will move laterally from 005 to 015 About equal shim set totals are required under each carrier flange The recommended tightening torque for bearing retainer 3 4 1OUNC cap screws is 211 to 257 ft Ib 15 INSTALLATION OF CRANKSHAFT OIL SEAL Insert oil seal over th
18. 01 0050 10 7201 0001 10B 7201 0001 00B 7201 0325 27B 7201 0039 00A 7201 0007 00A 1201 0790 10 1201 0050 10 1201 0001 108 7201 0001 00B 7201 0325 26B 7201 0039 00A 7201 0007 00A 1201 0790 10 1201 0050 10 1201 0001 108 7201 0001 00B 7201 0325 25B 7201 0039 00A 7201 0007 00A 7201 0576 00B 1201 0067 10 7204 0376 00B 7201 0060 00B 7201 0325 24B 7201 0039 00A 7201 0007 00A 7201 0576 00B 1201 0067 10 1204 0376 00B 7201 0060 00B GLAND NUT WRENCH 7201 0342 00B Qty 3 per pump 7201 0325 23B 7201 0039 00A 7201 0007 00A Stuffing Box Assembly 7201 0576 00B 1201 0067 10C MA 155M MA 155M HD 1204 0376 00B 1201 0060 00B Plunger Diameter Plunger Chrome Oxide 1 7201 0325 22B Baffle 2 0039 00A Stuffing Box Seal Nitrile Rubber 3 0033 00A Stuffing Box Steel 4 7201 0590 10B Stuffing Box Alum Bronze 4 7201 0026 10B 7201 0591 10B Gland Alum Bronze 5 7201 0025 00B 7201 0325 21B 0039 00A 0033 00A 7201 0590 10B 7201 0026 10B 7201 0591 10B 7201 0025 00B 7201 0325 20B 0039 00A 0033 00A 7201 0590 10B 7201 0026 10B 7201 0591 10B 7201 0025 00B 7201 0325 19B 7201 0325 18B 0039 00A 0039 00A 0033 00A 0033 00A 7201 0590 10B 7201 0026 10B 7201 0038 10B 7201 0591 10B 1201 0
19. 025 00B 7201 0068 00B 7201 0325 17B 0039 00A 0033 00A 7201 0038 10B 7201 0068 00B 7201 0325 16B 0039 00A 0033 00A 7201 0038 10B 7201 0068 00B 7201 0325 15B 0039 00A 0033 00A 7201 0038 10B 7201 0068 00B GLAND NUT WRENCH 7201 0342 00B gt PENTAIR 7201 0325 14B 0039 00A 0033 00A MYERS APLEX SERIES 30 1201 0038 10B 1201 0068 00B 4 1 2 Piston Assembly D SE EU EL t AS edi eg i ec m ke V at m EU 4 M E D en ais 6 DAE lae eere m a or A eee NN Qty 3 per pump SC 230 SC 230 Description Description Piston Liner High Chrome Iron 7201 0729 00K Seal Liner 7201 0727 00A Piston Rod 7201 0728 00B Nut Piston Rod Self Locking 151 100008 273 Piston Cup Assembly 4 1 2 Black Rubber 7201 0731 00K Piston Liner Flange 7201 0730 00B Piston Rubber Furnished with Above 7201 0732 00A Baffle Not Shown 7201 0039 00A 4 1 2 Piston Assembly 4 S Ee ei umet eie m 7 4 Qty 3 per pump SC 230 SC 230 Description Piston Liner High Chrome Iron 7201 0729 00K Description Nut
20. 8 Lg SAE Grade 5 100 038058 273 Crankpin Bearing Pair 7201 0175 00K 3 8 Lockwasher Spring 05454A007 Wrist Pin 7201 0348 00B Gasket Crankcase Cover 7502 0126 00B Crosshead Subassembly 7201 0350 00D 1 2 Pipe Plug Hex Head 170 012001 237 Bushing 7602 3008 00B Oil Level Sight Gauge 7602 3000 00A Extension Rod 7201 0160 10B Pipe Nipple Before Jan 2015 7203 0100 12A Wiper Box Before Jan 2015 7205 0006 20B Pipe Nipple 157 014200 235 Wiper Box 7201 0539 00C 1 2 Pipe Plug Socket Head 170 012003 237 1 2 NC x 1 1 4 Hex Head Cap Screw Before Jan 2015 272 012114 999 1 4 0 D Tube x 1 4 NPTM Bulkhead Fitting Before Jan 2015 7602 3006 00A 5 8 NC x 2 Hex Head Cap Screw 100 058200 273 1 4 0 D x 90 degree x 1 4 NPTM Fitting Before Jan 2015 246 014014 220 1 2 Stat 0 Seal Washer Before Jan 2015 156 012087 999 1 1 4 NPTM Crankcase Breather 7602 3001 00A 2 1 2 1 0 x 3 1 4 0 D Poly Pak Ring Before Jan 2015 145 212314 999 1 4 Pipe Plug Square Head 05022A047 Wiper Seal Inner 145 212299 503 Oil Scoop Before Jan 2015 7201 0352 00D Oil Seal Before Jan 2015 145 212300 999 1 2 NC x 1 3 4 Lg Hex Hd Cap Screw Before Jan 2015 100 012234 273 Wiper Seal Outer 145 212300 503 1 2 Stat 0 Seal Washer Before Jan 2015 156 012087 999 Gasket Wiper Box Before Jan 2015 7502 0889 00A 1 2 Washer Plain S A E Std Before Jan 2015 189 012106 999 3 8 NC x 1 2 Shoulder x 3 1 2 Shoulder Screw 257 038312 220 Oil Metering Plug 7201 034
21. 9 00A wj o aoj lw gt PENTAIR MYERS APLEX SERIES 26 Crankshaft Assembly 4 1 2 Stroke Right Hand and Left Hand Drive Right Hand Shown H NS NS Na MA 155M HD SC 230 MA 155M HD SC 230 Description Description Crankshaft Assembly includes items 1 amp 2 PE293K Shim Set 1502 0237 00A Crankshaft 7201 0725 00D Oil Seal Drive Side 145 458558 999 Drive Key 146 100700 236 Key Packing Lubricator Drive Side 146 038112 236 Crankshaft Kit includes items 1 2 3 amp 4 PE293KB Bearing Carrier Lubricator Side 7205 0005 00C Bearing Cone Tapered Roller 203 574590 999 Oil Seal Packing Lubricator Side 145 200300 999 Bearing Cup 202 529590 999 Cover Stub Shaft 7204 0099 00A Bearing Carrier Drive Side 7201 0004 00 1 2 NC x 3 Lg Hex Hd Cap Screw Grade 5 100 012300 273 0 Nitrile Rubber 001500371 1 2 Lockwasher 154 012087 244 3 4 NC Hex Head Cap Screw 2 Long 100 034200 273 3 4 Lockwasher Spring Medium 154 034127 244 Items 14 thru 16 are required only if packing lubricator is not ordered Crankshaft Assembly 4 1 2 Stroke Right Hand and Left Hand Drive Right Hand Shown MA 155L MA 155M RO 261 MA 155L MA 155M RO 261 Description Eng No Item Q Description Eng No Crankshaft As
22. Extension At Tapered Roller Bearings At Center Bearings At Crankpin Bearings Diameter x Length 4 500 4 499 4 3 4 9 3 8 4 1 2 x 3 3 4 Crosshead Wrist Pin Case Hardened and Ground AIS 8620 Wrist Pin Bushing SAE 660 Diameter x Width Main Bearings Tapered Roller 2 5 8 x 3 5 8 Timken Crankpin Bearings Precision Automotive Steel Backed Babbitt Lined Liquid End Continued Available Liquid End Materials ASTM Steel A105 iston Type Rubber iners Hardened Steel unger Type Rokide Stainless Steel Chromium Oxide Coated Stuffing Boxes Field Removable and Replaceable Aluminum Bronze Carbon Steel 410 S ST B148 C955 1020 Packing Types Available Gland loaded Nonadjustable Spring loaded Cup Type Spring loaded Braided Teflon amp Kevlar Spring loaded Garlock Style 838 Style 120X Style 140 141 Style 8921K Seals Stuffing Boxes Valve Covers Cylinder Heads Buna N Bolting High Strength Heat Treated Alloy Steel Available Valve Types Abrasion Resistant 17 4PH S ST Valve Spring Material Inconel Average Liquid Velocity 4 1 2 Plungers at 450 rpm Suction Manifold Discharge Manifold 3 7 fps 16 1 fps eneral Overall Dimensions Length Width Height 54 1 2 43 22 Extension Pony Rod Diameter Material 2 1 2 17 4PH S ST Connecting Rod Automotive Type Ductile Iron
23. Frame Bores 6 749 6 752 Frame bores that have become worn more than 015 must be sleeved with a cast iron liner to re establish correct geometry and alignment Contact Myers Aplex Series concerning the repair of badly worn frame bores Smooth any rough corners and edges on the crosshead skirts using fine emery cloth Examine and clean the female tapered threads and wrist pin holes INSTALLING WRIST PIN BUSHINGS The wrist pin bushing is precision machined bearing bronze which is press fitted into the eye of the connecting rod Bushing 0 D 3 2525 3 2515 Connecting Rod Eye 3 250 3 251 MA 155 requires two bushings per crosshead After applying oil to the bushing O D use a hydraulic press to force it home Repeat this procedure for the second bushing When a bronze bushing is pressed into place the bore of the bushing is reduced somewhat owing to the extent of press fit Therefore a clean new wrist pin should be inserted into the PENTAIR MYERS APLEX SERIES bushing bore to establish that running clearance has been obtained The running clearance between the wrist pin and installed bushing is New Pin 0 D 2 6875 2 6860 Installed Bushing Bore 2 6895 2 6905 OIl Glearafice ote 0020 0045 Replacement bushings are furnished prebored by Myers Aplex Series which usually eliminates the need to ream the installed bushing bore However due to slight variations in finishes and tolerances
24. I AVN ALIOOTZA AYLNI GINO MOT 403 Q3N3IS3Q 1138 NOILINS GINDIT SNIO9LNO WOU 310N 33S V ONINOONI 9NILV3Vd3S 31V 1d 1144Y CBOUINENS 131314 02 UALLIMdS XALYOA NMOHS LON CNY SNOLLO3NNO2 I9YYHISIA WNG NOLLONS WNG NS 7 HIM dN Nd 1VINOZINOH SI 14155384 135 N3HM ATINA SN3d0 JATYA 2 10 1 YO 3ATVA 4313Y 9NIN340 TTR4 9 310N 33S 5NIQVOT OL dWNd NI 13 Wi OLN3d0 IMYA SS dA MOHI EMIL NO YO TIJAN Alddns L 310N 335 1 0 N NOISNVdX3 YO 3SOH 3181x314 13 91 S Gn v 2 310N 33S WAWINIWI INVA NIYYG INIOd MOT BAT GINDI WAWINIW MOT38 YNYL OLNI GINO 6 0334 CINOHS 3NITSSVdA8 333 ONIddOLS YO 9NILUVIS ATIVOLLVINOLOV z N3d0 01 Q3N9IS3Q 38 CINOHS LI INN 1910 NOLLONS 9NIN3d0 TTO TWANYW V 0357 38 AVIA SSVdA GILVYIdO YOLOW AVM OML V 0341530 31 S 9 310N 335 ANI 0333 INA SAIN SSVdAg JILLVIOA SV ANVSS393N SI AND ENER V JI NMOHS INIOd 1Y dd 9 9 31201 D ONIOIAYAS 9NILN3A3Ud AINON 3A08V YO 30 1NOS3 INZWINDI 33H10 YO 9Nldld 31 90110N 00 LINDUID SSvdAg NI INDIT TIY ONY S3ATVA 340H9 ONY 331133 Alda ATI TIIM INIOd MOT OS SSVdA8 34018 MITA SI ANY dWNd JHL S3H9V33 A TLdINOSd WALSAS NI ANY
25. Length 4 500 4 499 4 3 4 4 1 2 x 3 3 4 Crosshead Wrist Pin Case Hardened and Ground AISI 8620 Wrist Pin Bushing SAE 660 Diameter x Width 2 5 8 x 3 9 8 Main Bearings Tapered Roller Timken Crankpin Bearings Precision Automotive Steel Backed Babbitt Lined Extension Pony Rod Diameter Material 2 1 2 17 4PH S ST Connecting Rod Automotive Type Ductile Iron Average Crosshead Speed At 450 rpm 338 fpm Minimum Life Expectancy Main Bearings Lio iquid End Plunger Size Range Diameter 50 000 hr 1 3 4 Thru 2 3 4 Maximum Continuous Working Pressure 3 430 psi Hydrostatic Test Discharge 5 400 psi Discharge Connection Size 6 ANSI 1500 Suction Connection Size 8 ANSI 150 Hydrostatic Test Suction 425 psi Available Liquid End Materials ASTM Nickel Aluminum Bronze Forged Steel Block B148 C955 A105 Liquid End Continued Plunger Type Rokide Stainless Steel Chromium Oxide Coated 316 S ST Stuffing Boxes Field Removable and Replaceable Aluminum Bronze Carbon Steel B148 C955 1020 Packing Types Available Gland loaded Nonadjustable Spring loaded Cup Type Spring loaded Braided Teflon amp Kevlar Spring loaded Garlock Style 838 Style 120X Style 140 141 Style 8921K Studs Material ASTM Nuts Material ASTM A193 Grade B7 Cadmium Plated A194 Grade 2
26. OS JATA UN NOILONS 30 3NITH3LN32 NVHL ATLHOTTS 38 OL LIINI NOLLORIS dWNd 40 3NITH31N3O T SALON SdNNd YFINN Id 404 WALSAS 9NIldld GALSIDINS 13 Use the following table in adjusting V belt tension Belt Tension at Mid Span Cross Section New Belts Used Belts B 5 6 Ibs 3 1 4 5 Ibs 6 1 2 9 3 4 Ibs 3 7 1 2 Ibs 13 23 Ibs 9 3 4 13 Ibs 4 10 Ibs 17 30 Ibs Applying the above forces with a small spring scale adjust motor position to provide the following deflection at mid span Deflection inches Approx Center Distance Span inches Belts must be matched in pitch length If one or two belts are slack when the others are correctly tensioned investigate for possible reasons Correct any misalignment or lack of matching so each belt will transmit its load share ZR Sheaves must be balanced prevent abnormal vibration Balancing weights must not be removed Type QD sheaves must be evenly tightened on their tapered hubs to avoid rim wobble and severe lateral vibration V belts that snap and jerk will produce abnormal vibration and loads on both pump and motor or engine Run the pump several minutes at full load with belt guard removed observing for uneven motion on the belt slack side especially When an old V belt drive becomes unserviceable replace all belts not just the
27. Piston Rod Self Locking 151 100008 273 Piston Liner Flange 7201 0730 00B Baffle Not Shown 7201 0039 00A Piston Rod 7201 0728 00B Piston Cup Assembly 4 1 2 Polyurethane 7201 0781 00K Seal Liner 7201 0727 00A 31 STANDARD LIMITED WARRANTY CENTRIFUGAL amp RECIPROCATING PUMPS Pentair Myers warrants its products against defects in material and workmanship for a period of 12 months from the date of shipment from Pentair Myers or 18 months from the manufacturing date whichever occurs first provided that such products are used in compliance with the requirements of the Pentair Myers catalog and technical manuals During the warranty period and subject to the conditions set forth Pentair Myers at its discretion will repair or replace to the original user the parts that prove defective in materials and workmanship Pentair Myers reserves the right to change or improve its products or any portions thereof without being obligated to provide such a change or improvement for prior sold and or shipped units Seals piston cups packing plungers liners and valves used for handling clear fresh nonaerated water at a temperature not exceeding 120 F are warranted for ninety days from date of shipment All other applications are subject to a thirty day warranty Accessories such as motors engines and auxiliary equipment are warranted by the respective manufacturer and are excluded in this standard warranty Under
28. alve from the fluid end Attach the Myers Aplex Series puller head to the puller stem tighten their tapered threads with a pipe wrench applied to the knurled areas of the puller stem and head Lower the stem and head into the fluid end and engage the threads of the head onto the seat threads Using a 1 2 bar or screwdriver rotate the head clockwise and thread it fully onto the seat But do not tighten Slide the bridge over the stem Clean and oil the stem threads Oil the face of the wing nut Thread wing nut down onto the stem seating it on the bridge top firmly Extract the seat from the pump by striking the wing nut with a heavy hammer A hydraulic ram may also be used Stand clear of the pump when applying heavy tonnage as the entire assembly will jump violently upward when the pulling energy is suddenly released The Myers Aplex Series puller setting tool and gauge tool are custom designed and built for each specific Myers Aplex Series pump model The same puller head is used on both suction and discharge seats The bridge is made to fit each model and its proper use will not damage the valve cover gasket machined counterbore on the top of the fluid end SALVAGE OF WORN SEATS Rough valve seat faces may often be renewed by lapping or grinding if not deeply fluid cut Perfect flatness is required A surface grind followed by lapping on a lapping plate provides excellent smoothness and the flatness needed for good
29. anuary 2015 the connecting rod crosshead assembly is installed after the assembly of the crankshaft In these models the rod and crosshead will pass through the wiper box wall bore With the frame in the horizontal position load the rods through the cradle New Crankpin 0 D 4 5 4 499 New Connecting Rod Bore 4 851 4 853 Crankpins that are worn out of round tapered or badly scored should either be discarded or perhaps salvaged by grinding undersize hard chrome plated and finish ground to above diameter Myers Aplex Series does not offer this service Connecting rod cap bore must be perfectly round and within above sizes and free of taper Discard if elliptical or tapered as the result of abnormal heating Each cap and rod is match marked for correct identification Take care that each cap is reinstalled properly with its companion rod Bearing halves are identical and are prevented from rotating by tongues which fit into slots in the cap Check that all oil holes are clean and fully open Grit is the greatest enemy of bearings however precisely manufactured Hence all surfaces must be perfectly clean and lightly oiled prior to assembly Remove any burrs or sharp corners which prevent the perfect fitting of these precision bearings Using a torque wrench tighten cap bolts as follows Thread Size 5 8 18UNC Tightening Torque 125 135 ft Ibs Specified torque applied to clean well oiled threads and beari
30. cant to the threads of the valve cage and screw the cage on to the threaded valve seat with cage setting tool INSTALLING DISC SPRING DISC VALVES AND STEM Myers Aplex Series offers discs of Delrin acetal resin of 17 4PH S ST hardened and ground and of titanium alloy Position the disc and Inconel spring on the seat aligning the hole in the disc with the stem threads in the seat center The stem spring retainer and locknut are shipped from Myers Aplex Series already assembled and tightened with a torque wrench with Loctite sealant added to the top stem threads only Stem Threads 1 2 13UNC Tightening Torque 65 75 ft lbs 21 Use an anti seizing lubricant in these threads This is very necessary when seats and stems of Type 316 stainless steel are selected optional to prevent galling Cleanliness of threads and other contacting surfaces is of paramount importance in the assembly of all valve elements VALVE SPRING OPTIONS All Myers Aplex Series valve springs are made of Inconel material precisely designed and fabricated Unless otherwise specified the standard spring is furnished It provides excellent results in the great majority of applications Pumps employed in marginally available NPSH conditions may require a softer spring to reduce the required NPSH For these special conditions Myers Aplex Series can supply light valve springs which exert lower pressure on the valve disc The use
31. card any throat bushing that becomes worn or scored as it will not then serve its purpose It should fit snugly in the bottom of the box Apply oil generously to this ring Styles 838 and 858 Packing Developed by Utex Industries Inc Styles 838 and 858 are a nonadjustable type packing which depends solely on hydraulic pressure to energize the sealing lips Gland tightening forces do not energize the lips Tightening and hydraulic end thrust loads are transmitted entirely through the center support portions of each ring The flattened portions of the rings are large enough to withstand overtightening Do not attempt to adjust this type packing It should be kept thoroughly tightened at all times Running it loose will ultimately ruin the bore of the box Running it loose will not usually cause it to drip at all but it can ruin the box in time Lightly oil each ring and the box bore and then lightly tap in each ring separately with the rings facing correctly This is most easily done before installing the plunger Lantern rings are provided with and reliefs and two or more oil holes to allow lubricant to reach the plunger After the last unit of Styles 838 and 858 packing is in place generously oil the lips of all seal rings to ease plunger entry 19 INSERTING THE PLUNGER Apply oil liberally to plunger O D and lightly tap it through the packing When introducing the plunger through the MA
32. charge pressure from all cylinders during the start This requires a block valve on the discharge side and a full opening bypass valve on the other side For economy the bypass to tank can be combined with the relief valve discharge line This line must be full sized well supported and sloped downward to avoid freezing in cold weather A frozen relief valve line provides no protection to either the pump or operating personnel The ability of a reciprocating pump to be self priming depends on the ratio of the swept displaced volume in the cylinder to the unswept clearance volume at the end of the stroke This depends on the design of the fluid end and on the plunger size selected Choice of the largest size plunger for a particular fluid end improves this compression ratio and so leads to self priming or easy priming Choice of the minimum size plunger sometimes leads to difficulties especially with pumps that require frequent servicing or which PENTAIR MYERS APLEX SERIES handle volatile liquids or which contain substantial amounts of dissolved air or gas An automatic bypass and purging system for these applications may be merited LUBRICATION Myers Aplex Series pumps use S A E 40 wt nondetergent oil in the crankcase This oil requires only a nonfoaming additive and should possess good water separation antiemulsion characteristics Such oils are often labeled industrial or turbine quality lub
33. dled with the greatest care Use only a rubber mallet to insert it into the packing Other plunger types are available upon request DISC VALVE SYSTEMS AND ABRASION RESISTANT VALVE CONSTRUCTION GENERAL Myers Aplex Series has developed a unique setting puller system permitting quick easy and safe methods of installing and removing tapered seat valves The system allows servicing without distortion of the seat with minimum effort and no damage to fluid end tapers or seat Tapered seats notoriously drive solidly down into mating deck tapers so firmly that extraction has always posed severe problems Old style valves may be pulled only with the greatest effort using J puller heads prone to failure CO dry ice and other improvisations DISC VALVE AND ABRASION RESISTANT VALVE CONSTRUCTION The Myers Aplex Series valve is a precision made subassembly using threads cut into the rim of seat for use with Myers Aplex Series setting pulling tool These threads do not deteriorate as proved by field experience By locating these on the rim setting pulling forces are now applied only to the rim of the seat never to the webs or spokes or to the center section Distortion of the seat is eliminated Access to these seat threads is provided by the removal of the valve cage on abrasion resistant valve or the spring retainer on disc valves which is screwed onto the seat An anti seizing lubricant applied to all threads is
34. e end of crankshaft and position it into the oil seal bore in the power frame of bearing retainer Using a rubber mallet tap it into the bore until the face of the seal is flush with the power frame or bearing retainer DISASSEMBLY After removing the connecting rod cap and cap bolts note identifying marks on each cap so each may be later correctly reassembled onto its own rod remove a bearing carrier from the frame Two jack out tapped holes are provided in the flange of the carrier for this purpose Support the shaft during removal to avoid damage The crankshaft may now be extracted once all connecting rods are moved clear Examine the crankpin surfaces for wear or corrosive pitting The correct diameters of these journals are Crankpin Diameter 4 5000 4 4990 If worn more than 010 undersize crankshaft should be replaced or an attempt to salvage it may be made at a shop well equipped to grind the crankpins which must be fully round chrome plated and finish ground to the above sizes Myers Aplex Series does not perform this function Crankshaft tapered roller bearings should be carefully examined for pitting scoring or corrosion and replaced as required The cone and roller assembly is most easily removed by first cutting away the cage using an acetylene cutting torch Then heat the cone inner race with the shaft held vertically so cone will drop off due to its own weight Avoid exces
35. e pump in a clean dry location PUMP LOCATION AND PIPING DESIGN Locate pump and driver in a clean well drained ventilated and brightly illuminated area with adequate working spaces around the pump to provide ample PENTAIR MYERS APLEX SERIES access to fluid end power end and associated drive elements Do not expect good maintenance to result if the pump is positioned on muddy terrain or in a dirty cramped dimly lighted area The supply tank s should be large to allow dissolved air and other gases to escape from the liquid and allow suspended solids to settle out before entering pump A system employing dams and settling chambers is desirable CAUTION All pumps should be installed level For mobile applications the maximum angle of intermittent operation pumps SC pumps should be no more than 5 degrees in any one direction Pumps are not designed to withstand piping weight vibration and the effects of thermal piping expansion contraction Piping loads may be considerable and the weight of all valving dampeners filters and associated forces moments and couples must be completely isolated Use flexible hoses and rigid piping supports to isolate the pump and its driver from these effects SUCTION PIPING No part of the piping system deserves more careful planning than the suction piping system Suction piping must be short direct and oversize Use one pipe size larger than the pump suction connection T
36. e which causes plunger icing especially in very humid conditions Packing lubricant for pumps on light hydrocarbons hot water lean oil naphtha or gasoline often requires experimentation A good start is to use steam cylinder oil Castor oil is sometimes successful as a packing lubrication for liquid propane and butane services at ambient temperature In pumps placed in arctic service a special low pour point oil is indicated Packing lubrication is not permitted on some services such as amine food stuffs etc and other packing styles and materials may be required PLUNGERS Myers Aplex Series offers its own unique product the Myers Aplex Series Rokide plunger This premier quality plunger consists of a chromium oxide deposition on a solid stainless steel body Ordinary handling will not damage this fine product Avoid striking the coated surface black during installation Apply light forces only on the ends of the plunger Do not hammer or pry PENTAIR MYERS APLEX SERIES 20 All threads on Myers Aplex Series plungers must be clean and oiled before assembly Stainless steel although very corrosion resistant has a tendency to gall and seize To avoid this an anti seizing lubricant is well worth its use Apply oil to the threads and the rubbing surface Myers Aplex Series can supply solid ceramic plungers on order This plunger is very fragile vulnerable to thermal and mechanical shock and must be han
37. ease lift Raise tank level Broken valve springs Replace Stuck foot valve Clean Pump valve stuck open Remove debris beneath valve Clogged suction strainer Clean or remove Relief bypass pressure valves leaking Piping too small and or too long Repair Increase size and decrease length Use booster pump Use suction and or discharge pulsation dampeners Worn valves or seats Replace or reface Piping inadequately supported Gas in liquid Improve support at proper locations Submerge return supply or makeup lines in suction supply tank If operating under a suction lift check joints for air leaks Pump valve stuck open Remove debris beneath valve Pump not filling Increase suction pressure One or more cylinders not pumping Prime all cylinders Allow pump to operate a low pressure through bypass valve to eliminate vapor Excessive pump speed Reduce Check drive ratio Worn valves or seats Replace or reface Broken valve spring Replace Loose plunger Tighten Loose or worn bearings Adjust or replace Worn crossheads or guides Replace Loose crosshead pin Loose connecting rod cap bolts Adjust or replace Pump running backward 23 Correct rotation TROUBLE LOCATION AND REMEDY Trouble Consistent knock Packing failure excessive Wear of liquid end
38. ention to the ground areas on which bearings and oil seals operate Connecting rods and crossheads must be previously installed into CA 125M pumps before the crankshaft assembly TAPERED ROLLER BEARINGS Shaft and frame tolerances provide a tight shrink fit on the shaft and in the carrier The best way to install the cone assembly consists of the inner race cage and rollers on the shaft is to heat the cone assembly in an electric oven for 30 minutes at 300 to 400 F Do not heat bearings with an acetylene torch This ruins the bearings Using clean insulated gloves remove the hot cone assembly from the oven promptly dropping it on to the shaft The cone assembly must contact the seat thrust face not be cocked and the large end of the rollers must be down Do not hammer on the bearing The soft steel cage is easily distorted ruining its function as a roller separator and guide against skewing If the cone does not contact its thrust face properly it must be pressed into place using a specially machined sleeve which does not touch the soft steel cage A hydraulic press is recommended if this difficulty arises CUP INSTALLATION Tapered roller bearing cup outer races is a press fit in the bearing carrier using a hydraulic press Cup must be pressed into a clean carrier until the race solidly abuts its shoulder must not be cocked The tool or plate used for this must contact only the outer end face not on
39. excessive pressure while relieving Use a full size relief line To minimize vibration whether hydraulic or mechanical discharge lines should be kept short direct well supported and solidly anchored Avoid dead ends and abrupt direction changes BYPASS PIPING Some designers ignore this important aspect of proper design of pump piping systems A reciprocating pump especially after maintenance of the valves or plungers starts with one or more fluid chambers full of air Pumps operating on propane butane or other volatile liquids start with vapor in the fluid chamber s Positive displacement pumps do not automatically purge themselves of air and gas after shutdown For example a quintuplex plunger pump will after servicing expel the air in four of the five pump chambers Thus the pressure from four of the active cylinders will keep shut the discharge valve of the inactive or air bound cylinder Then the air or gas in this cylinder will be compressed and expanded by its reciprocating plunger and never leave the chamber Similar effects occur in duplex and triplex pumps To overcome these difficulties adequate provision for expelling the gas in the air bound cylinders must be present Common practice is to totally relieve the pump of all discharge pressure during the start up after servicing Consider the operational advantage of a full sized bypass line return to tank which substantially removes dis
40. fing Boxes Valve Covers Bolting High Strength Heat Treated Buna N Alloy Steel Available Disc Valve Types Standard Acetal Resin Optional Hardened and Lapped Delrin 17 4PH S ST Valve Set Material Hardened and Lapped 17 4PH S ST Valve Seat Liquid Passage Areas Plate Disc Valves Delrin or S ST 3 9 sq in Average Liquid Velocity with 2 3 4 Plungers at 450 rpm Thru Seat Suction Manifold Discharge Manifold 8 5 fps 3 9 fps 16 9 fps eneral Overall Dimensions Length Width Height 54 3 16 43 22 Approximate Weights With Aluminum Bronze Liquid End With Forged Steel Liquid End 2 500 Ibs 2 700 Ibs MA 155M HD ENGINEERING DATA MA 155M HD ENGINEERING DATA Power End Model Triplex Pump MA 155M HD Maximum Input HP at Speed 175 at 450 rpm Rated Continuous Plunger Load 10 259 Ibs Stroke 4 1 2 Maximum Rated Continuous Speed Normal Continuous Speed Range 450 rpm 150 to 420 rpm Minimum Speed 100 rpm Oil Capacity 22 U S Quarts Viscosity S S U at 210 F Power End Oiling System 70 to 84 Splash Power Frame One Piece Cast Iron Crosshead Full Cylindrical Cast Iron Crosshead Diameter x Length 5 3 4 x 6 3 16 Crankshaft Forged and Nitrided Alloy Steel Crankshaft Diameters At Drive Extension At Tapered Roller Bearings At Crankpin Bearings Diameter x
41. he shorter it is the better One to three feet per second suction velocity is acceptable Reference the following table to size a direct suction line from a tank to a pump rn TETT MA 155 L SC 230 MA 155M MA 155M HD Use no elbows tees or restricted port valves in this line Do not install orifice plates or positive displacement type fluid meters in the suction line which act as flow restrictors Avoid the use of suction filters if possible Consider filtering the liquid as it enters the supply tank rather than as it leaves it The use of an eccentric reducer with the flat side up located at the pump suction connection is recommended The suction line should slightly rise from tank to pump and loops in which air may collect must be avoided The absolute pressure in a suction line may be less than atmospheric pressure and air may be sucked into the line unless all flanges and connections are airtight and watertight If you can see water leaking out of a suction line when the pump is still that may mean air is being sucked in when the pump is running Suction piping should be buried beneath the frost line or insulated to avoid freezing in the winter If the suction line has a block valve at the supply tank a suitable relief valve is suggested to relieve the suction piping from any possible dangerous overpressure from the discharge piping system Suction piping is often large heavy especially when filled w
42. ings Overloading Modify pump or system to eliminate overload Liquid in power end MYERS APLEX SERIES 24 Drain power end Eliminate cause or source of liquid entering power end Relubricate Trouble Excessive heat in power end Above 180 F Possible Cause Pump operating backward TROUBLE LOCATION AND REMEDY Correct rotation Insufficient oil in power end Fill to proper level Excessive oil in power end Drain to proper level Incorrect oil viscosity Overloading Fill with correct oil Reduce load Tight main bearings Correct clearance Drive misaligned Realign Belts too tight Reduce tension Discharge valve of a cylinder s stuck open Fix valve s Insufficient cooling Provide adequate cooling for oil or reduce ambient temperature Pump speed too low 25 Increase speed Power Frame Assembly Connecting Rod Crosshead amp Extension Rod Assembly 2 HLT 33 25 MA 155L MA 155M MA 155M HD SC 230 RO 261 MA 155L MA 155M MA 155M HD SC 230 RO 261 Description Eng No Description Eng No Powerframe Before Jan 2015 7201 0048 01K Locking Nut S ST Before Jan 2015 151 012013 405 Powerframe 7201 0049 00E Connecting Rod 7201 0351 00D Crankcase Cover 7201 0304 00C Connecting Rod Bolts and Safety Wire 7501 2713 00A Screw Cap Hd 3 8 NC x 5
43. it sometimes happens that more than predicted contraction of the occurs This occurrence results in a slight interference which may be eliminated by lightly honing the bore of the bronze Not by reducing the pin size An automotive engine repair shop usually is equipped with power honing machines capable of smoothly finishing the bushing bore Bore of bushing must be round and free of taper BOLTING THE WRIST PIN After pressing in the two bronze bushings the wrist pin must be bolted to the connecting rod Place the connecting rod inside the crosshead and slide the wrist pin through the crosshead and connecting rod The hole in the wrist pin should line up with the hole in the connecting rod Install the shoulder bolt through the wrist pin and thread into connecting rod Torque to 25 ft Ibs After installing the pin carefully check the crosshead O D to see if it is out of round If so a smart blow with a rubber mallet will restore the crosshead O D into its original roundness ORDER OF ASSEMBLY Prior to January 2015 the connecting rod crosshead assembly is installed before the crankshaft is installed because the wiper box wall bore is smaller than the crosshead O D This is most easily done by setting the power frame vertically and dropping each crosshead assembly into its frame bore Note The connecting rod must clear the frame bore circle in order to introduce the crankshaft in these models As of J
44. ith liquid and tends to vibrate Proper solid supports are recommended A suction hose located near the pump will isolate these effects protecting the pump from the forces and moments that piping weight creates New suction piping systems should be flushed free of pipe scale welding slag and dirt before starting the pump Hydrostatic testing to detect air leaks is advisable Proper choice of suction hose construction is essential to avoid collapse of the hose liner Install a dry type compound gauge in the suction line near the pumps which should fluctuate evenly If violently pulsating this gauge indicates that the pump is not fully primed or that one or more valves are inoperative ACCELERATION HEAD A characteristic of all reciprocating pumps is the imperative need to consider the effects of acceleration head which is a system related phenomenon Acceleration head may be considered to be the loss of available hydraulic head energy in the piping system occurring because the demand by the pump cylinders for liquid is not smooth and even Because the pump s demand for liquid is cyclical the velocity of the liquid in the entire suction system is not truly constant but varies in response to the combined demand of the reciprocating plungers Thus liquid in the suction system is compelled to be accelerated and decelerated several times during each crankshaft revolution depending on the number of plungers Called acceleration head
45. ize 3 ANSI Hydrostatic Test Discharge 2 125 psi Suction Connection Size 6 ANSI Hydrostatic Test Suction 425 psi Available Liquid End Materials ASTM Nickel Aluminum Bronze Stainless Steel Block B148 C955 316 S ST Approximate Weights With Aluminum Bronze Liquid End With Stainless Steel Liquid End 2 680 Ibs 2 900 Ibs CROSS SECTION DIMENSIONAL DATA TABLE Ref No MA 155L MA 155M MA 155M HD SC 230 RO 261 43 43 43 53 7 8 53 7 8 41 11 16 B Discharge Connections Al 2 ANSI 1500 FF 3 ANSI 600 FF B Suction Connections 4 ANSI 150 FF 150 FF 6 ANSI 150 FF 15 16 15 16 3 4 3 4 7 8 7 8 1 1 10 9 7 8 9 7 8 5 1 2 5 1 8 5 1 8 C Discharge Connections 3 ANSI 600 RF 2 ANSI 1500 RF 2 ANSI 1500 RF 3 ANSI 600 RF C Suction Connections 6 ANSI 150 RF 4 ANSI 150 RF 4 ANSI 150 RF 6 ANSI 150 RF PENTAIR MYERS APLEX SERIES DIMENSIONAL DRAWINGS DISCHARGE CONNECTION SUCTION CONNECTION DISCHARGE CONNECTION SUCTION CONNECTION INSTALLATION OPERATION LUBRICATION MAINTENANCE AND STORAGE INSTRUCTIONS SAFETY Electrical power or engine must be shut off completely before attempting service on the pump or its drive Air surrounding the unit to be free of toxic flammable or explosive gases Tools needed should be planned for in advance see val
46. lable The double lip wiper seal is inserted into its counter bore with its lips directed toward the oil in the crankcase Will not work if installed backward DOUBLE LIP CANNED WIPER Jan 2015 to Current The double lip canned wiper oil seal is to keep contamination out of the power frame This seals press fit installation prevents O D contamination while the additional seal lip works in conjunction with Parker rod seals to provide sealing for leakage An aggressive wiping lip facing the element ensures contaminant exclusion along the rod INSERTING THE EXTENSION ROD Insert the extension rod through the wiper seals with the tapered thread and entering first Care should be used in moving the extension rod through the seals with wrenching flats entering first Do not force The sharp corners on the wrenching flats may damage the seal lips Resulting in oil leakage With extension rod inserted through the wiper box seals thread the tapered threads must be clean into the tapered crosshead female threads Firmly tighten applying torque to the wrenching flats only Never damage the extension rod ground surfaces Then fasten the wiper box to the power frame by tightening the cap screws Oil leakage between frame face and wiper box is prevented by use of a gasket beneath the box flange STUFFING BOX PACKING AND PLUNGER ASSEMBLIES GENERAL Myers Aplex Series pumps all feature field removable and replaceable s
47. loaded Braided Teflon amp Kevlar Spring loaded Garlock Style 838 Style 120X Style 140 141 Style 8921K Studs Material ASTM A193 Grade B7 Cadmium Plated Power Frame One Piece Cast Iron Nuts Material ASTM A194 Grade 2 Crosshead Full Cylindrical Cast Iron Seals Stuffing Boxes Valve Covers Cylinder Heads Buna N Crosshead Diameter x Length 5 3 4 x 6 3 16 Bolting High Strength Heat Treated Alloy Steel Crankshaft Ductile Iron Crankshaft Diameters At Drive Extension At Tapered Roller Bearings At Crankpin Bearings Diameter x Length 4 500 4 499 4 3 4 4 1 2 x 3 3 4 Available Valve Types Standard Acetal Resin Optional Hardened and Lapped Double Stem Guided Delrin 17 4PH S ST 17 4PH S ST Crosshead Wrist Pin Case Hardened and Ground AISI 8620 Valve Seat Liquid Passage Areas Plate Disc Valves Delrin or S ST 6 54 sq in Wrist Pin Bushing SAE 660 Diameter x Width 2 5 8 x 3 5 8 Main Bearings Tapered Roller Timken Crankpin Bearings Precision Automotive Steel Backed Babbitt Lined Extension Pony Rod Diameter Material 2 1 2 17 4PH S ST Connecting Rod Rifle Drilled Ductile Iron Average Liquid Velocity 4 Plungers at 450 rpm Thru Seat Suction Manifold Discharge Manifold Overall Dimensions Length Width Height 10 8 fps 3 7 fps 16 1 f
48. lve Systems and Abrasion Resistant Valve Construction 20 Gerieral iscritte eeh 20 Disc Valve and Abrasion Resistant Valve Construction 20 Setting the Valve 21 Installing O Rings Abrasion Resistant Spring and Gage secet a hu Miss HERAUS 21 Installing Disc Spring Disc Valves and Stem 21 Valve Spring Options 21 Valve Disc Options 21 Pulling the Valve Geat 21 22 Salvage of Worn Geats 22 Other Pump BrandS 22 Trouble Location and Remedy 23 25 Parts Liste tence 26 31 Wartanty es et eebe 32 MA 155L ENGINEERING DATA MA 155L ENGINEERING DATA Power End Model Triplex Pump MA 155L Maximum Input HP at Speed 155 at 450 rpm Liquid End Continued Plunger Type Rokide Stainless Steel Chromium Oxide Coated 316 S ST Rated Continuous Plunger Load 9 087 Ibs Stroke 4 1 2 Maximum Rated Continuous Speed Normal Continuous Speed Range 450 rpm 150 to 420 rpm Stuffing Boxes Field Removable and Replaceable Aluminum Bronze Carbon Steel B148 C955 1020 Minimum Speed 100 rpm Oil Capacity 22 U S Quarts Viscosity S S U at 210 F Power End Oiling System 70 to 84 Splash Packing Types Available Gland loaded Nonadjustable Spring loaded Cup Type Spring
49. mpener The most common mistakes made in the design of the discharge piping system are 1 Pumping directly into a tee or header A standing wave either audible or subaudible then often occurs If flow must enter a header use a 45 branch lateral or equivalent to avoid a reflecting surface from which sound can reflect 2 Pumping into short radius 90 elbows Instead use two 45 elbows spaced 10 or more pipe diameters apart 3 Pumping into a right angle choke valve 4 Pumping into too small piping line size Piping should be sized to keep fluid velocity below 15 feet per second max 5 Pumping through an orifice plate small venturi or reduced port regular opening valve 6 Pumping through a quick closing valve which can cause hydraulic shock water hammer A good discharge piping system includes 1 A properly sized correctly set relief valve Discharge from relief valve returned to tank not to pump suction 2 A full opening discharge gate or ball valve Avoid restricting plug valves globe valves and angle valves 3 A pressure gauge with gauge dampener or snubber Consider a liquid filled gauge Scale range to be double the normal pump operating pressure Locate the relief valve and pressure gauge ahead of any block valve and so that the pressure in the pump is always reflected at the relief valve The relieving capacity of the relief valve must exceed the capacity of the pump to avoid
50. nd tied to maintain the length mentioned above Each spring is assembled into the stuffing box Note that the spring does not contact the plunger Spring Guide Ring Plungers are heavy and the importance of a well fitted guide ring that carries this weight is often overlooked Discard any guide ring that becomes worn or scored as it will then not serve its purpose It should fit snugly in the box Apply oil generously to this ring Spring Loaded Packing Three rings of chevron or compression packing are installed next For compression packing install them with the skive intersections 180 apart to discourage leaking Gland Ring This ring also fits the plunger and helps support the plunger weight Discard it if bore is worn rough or out of round Lightly oil the ring before insertion The gland ring fits all packing J STYLE STUFFING BOX amp PLUNGER ASSEMBLY STYLES 838 amp 858 THROAT BUSHING PACKING SET PRESSURE BAFFLE LANTERN RING LI Above depicts Styles 838 and 858 packing correctly installed with all packing lips facing toward the fluid pressure Note that two units of Styles 838 and 858 packing are positioned ahead of the lantern ring and one unit is positioned behind it Thus lubricant entering the lantern ring is forced toward the pressure Throat Bushing Plungers are heavy and the importance of a well fitted throat bushing that carries this weight is often over looked Dis
51. ng faces will create tensile stresses in the cap bolts from 90 000 to 110 000 psi approx and will provide correct initial tension Myers Aplex Series pumps use high strength cap bolts suitable for these initial loadings maintained by safety wire to keep the required tightness After all rods and caps are secured slowly turn the crankshaft to be sure no bearings are in a bind Examine the location of each connecting rod eye end within its crosshead Rods must not touch any crosshead boss or skirt OIL SCOOP Before Jan 2015 Only This pump is provided with a bronze oil scoop which shears off oil adhearing to the crankshaft cheek depositing oil on the deck above the crossheads assuring adequate lubrication even at low pump speeds The scoop is adjustable in position and is set lightly in contact with the crankshaft Secure it tightening the self locking nuts securely Note that fiber washers are employed underneath the bolt heads preventing oil seepage to the outside 17 WIPER BOX ASSEMBLY GENERAL Extension rod wiper boxes sometimes referred to as the diaphragm stuffing box or stripper housing assembly serve two important functions retention of crankcase oil in the power end and exclusion of dirt and water Myers Aplex Series has developed a unique sealing set which operates on a hardened and ground stainless steel extension rod often called pony rod and a steel baffle disc affording protection
52. of light valve springs may be limited by the choice of plunger size and or limited by the chosen speed of the pump Light valve springs may be impractical for pump models fitted with their maximum plunger size or which operate near top speed rating as disc bouncing and erratic seating may occur VALVE DISC OPTIONS Myers Aplex Series acetal resin discs made of DuPont Delrin are machined flat and smooth to produce perfect sealing on the lapped flat face of the seat Used successfully in thousands of applications these discs are light slightly flexible under load and seal well even at high pump speeds providing smooth pump action Acetal resins are very resistant to most corrodents but are not usually suitable where fluid temperatures are above 120 degrees Nor do they afford long life at extreme pressures Pressure limitations depend on valve size But continuous valve operation at pressures above 2 500 psi usually indicates the need of metal valve discs For higher temperatures or pressures Myers Aplex Series offers lapped flat hardened Type 17 4PH stainless discs or titanium alloy discs These metal discs are less tolerant of any fine grit in the liquid and are noisier than the acetal resin disc PULLING THE VALVE SEAT First drain the fluid end entirely For abrasion resistant valves use the cage wrench to unscrew the cage from the seat For disc valves unscrew the stem from the seat Remove the cage spring and v
53. on pump and motor bearings and can cause early shaft fatigue failure 0349014 SI 398 VH9SIQ TVINHON N3HM 3ATVA 431734 30 WYJYLSNMOG DOE THM LVHL NOLLIGNOD 394NS FHL 403 Q30N31NW0938 SI NOLIN3LIV YVINOLLYWd SQNIVZVH 104 3NWA 393H9SIQ ONINSdO TINd OL 3080 NI SNOLLIGNOD 1354 ANY INILUVIS 9NIVU3dO 404 SONILWY JUNSSIUd 1V3S 9NIN340 TIO HLIM 3ATVA Y93H9 9NIMS ALON 339 3ivno3dy ISNW SININOdNOD WALSAS OT JBUYHOSIG 6 310N 33S Q3193NNO9 N3130 SI NIVA 109 Fg 43034 TIVAS J101 SI dNNd N3HM CNY 3ATVA 431734 IYNSSIYd SV AYINI JUNSSAYd 398YH2SIQ 30 aasn 4D YINJANYO ISNIVDW W31SAS NOILONS 10410844 01 6 1 NOLLONS T380H2NV Q3140ddfis 38 LSN DNidid JDYVHOSIG ANY NOLLONS 8 df 301 WAWININ 39039 21813993 q3sn 4 YaNJdWYA 1H9I3M ONIdid NOLLOVMINOO NOISNYdX3 IZIS NOLLO3NNO2 NOLLORS NOLIVSTNd 393vHOSIQ 9NIdld 40 5193333 3ZIWINIW dnd ISV31 1Y LSNW 1018 IATA 42018 ONY OL Q3NOLLISOd 38 CINOHS ld 1NIOf HOI QV3H NOLLVH3T390V 39nv9 3uniss3ud T3AIMS YO INIOf NOISNVdY3 350H 318x314 NO SQN3d3Q 30 3215 G3sn LILON 339 V CNY NIVHIS ONIdld 3AOW3N OL JUV SLINA INIdWNd ZUM 1NIOf NOISNYAY3 HOW 403 INNT IMYA 42018 39nv9 34nss3ud T8 VeIS3Q 3l JATA 1003 Jlyyyaas INN UTIN we 50 50H TAMAN 3Qfr19N
54. ps 55 3 4 43 22 Average Crosshead Speed At 450 rpm 338 fpm Minimum Life Expectancy Main Bearings Lio iquid End Plunger Size Range Diameter 60 000 hr 2 3 4 Thru 4 Maximum Continuous Working Pressure 1 389 psi Hydrostatic Test Discharge 2 175 psi Suction Connection Size 6 ANSI Hydrostatic Test Suction 425 psi Available Liquid End Materials ASTM Nickel Aluminum Bronze Forged Steel Block B148 C955 A105 Approximate Weights With Aluminum Bronze Liquid End With Forged Steel Liquid End 2 680 Ibs 2 900 Ibs MA 155M ENGINEERING DATA MA 155M ENGINEERING DATA Power End Model Triplex Pump MA 155M Maximum Input HP at Speed 155 at 450 rpm Rated Continuous Plunger Load 9 087 Ibs Stroke 4 1 2 Maximum Rated Continuous Speed Normal Continuous Speed Range 450 rpm 150 to 420 rpm Minimum Speed 100 rpm Oil Capacity 22 U S Quarts Viscosity S S U at 210 F Power End Oiling System 70 to 84 Splash Power Frame One Piece Cast Iron Crosshead Full Cylindrical Cast Iron Crosshead Diameter x Length 5 3 4 x 6 3 16 Crankshaft Ductile Iron Crankshaft Diameters At Drive Extension At Tapered Roller Bearings At Crankpin Bearings Diameter x Length 4 500 4 499 4 3 4 4 1 2 x 3 3 4 Crosshead Wrist Pin Case Hardened and Ground AIS 8620
55. ricants If these oils are not available a good quality gear oil or EP oil may be substituted See lubrication guidelines In temperate climates oil viscosity selected should fall between 70 and 84 seconds Saybolt viscosimeter at 210 F In arctic service low pour point oils are needed After the first 500 hours of operation in a new pump drain the oil Refill with clean fresh oil Thereafter change the oil every 1 500 hours or sooner if it becomes contaminated with water or dirt Fill to the center of the sight gauge Recheck after starting adding oil to center of gauge while running V BELT DRIVE A properly designed well aligned V belt will provide years of reliable economical service if properly tensioned and kept dry free of oil and ventilated Alignment is critical for long life If the shaft axes are not truly parallel or if the sheave grooves are not positioned in good alignment some belts will carry most of the load resulting in their disproportionate load share and may actually twist or turn over in the groove Use a straight edge across the rim of the sheaves to detect and correct for misalignment After about one week of operation new V belts will have stretched somewhat The motor must be moved on its slide base to re establish proper belt tensioning Insufficient tension results in slippage burning squealing especially during starting and shortened belt life Overtightening imposes excessive loads
56. sealing and smooth running Metal valve discs may sometimes be salvaged by grinding or lapping if not deeply cut or cracked Delrin discs are relatively inexpensive and salvage is seldom worthwhile Replace the stem if severely worn Inconel valve springs rarely require replacement OTHER PUMP BRANDS Myers Aplex Series Industries can provide its unique patented valve to fit nearly all brands and models of multiplex pumps A Myers Aplex Series seat setting puller tool is available too PENTAIR MYERS APLEX SERIES 22 Trouble Pump fails to deliver required capacity Suction and or discharge piping vibrates or pounds Pump vibrates or pounds Possible Cause Speed incorrect Belts slipping TROUBLE LOCATION AND REMEDY Change drive ratio or tighten belts if loose Correct motor speed Air leaking into pump Seal with compounds Liquid cylinder valves seats or plungers worn Reface or lap valves and seats replace packing or plungers Insufficient NPSHA Pump not filling Increase suction pressure Prime pump Makeup in suction tank less than displacement of pump Increase makeup flow Reduce pump speed Vortex in supply tank Increased liquid level in supply tank Install vortex breaker One or more cylinders not pumping Prime all cylinders Allow pump to operate at low pressure through bypass valve to eliminate vapor Suction lift too great Decr
57. sembly includes items 1 amp 2 PE112K Crankshaft 7205 0003 10D 10 1 Oil Seal Drive Side 145 458558 999 Drive Key 146 100700 236 Key Packing Lubricator Drive Side 146 038112 236 Crankshaft Kit includes items 1 2 3 amp 4 PE112KB Bearing Carrier Lubricator Side 7205 0005 00C Bearing Cone Tapered Roller 203 574590 999 Oil Seal Packing Lubricator Side 145 200300 999 Bearing Cup 202 529590 999 Cover Stub Shaft 7204 0099 00A Bearing Carrier Drive Side 7201 0004 00 1 2 NC x 3 Lg Hex Hd Cap Screw Grade 5 100 012300 273 O Ring Nitrile Rubber 001500371 1 2 Lockwasher 154 012087 244 3 4 NC Hex Head Cap Screw 2 Long 100 034200 273 3 4 Lockwasher Spring Medium 154 034127 244 Items 14 thru 16 are required only if packing lubricator is not ordered 27 Item Fluid End Assembly Description Valve Cover Eng No 7201 0088 00C Valve Cover Seal 7201 0008 00A 3 4 Hex Hd Pipe Plug S ST 170 034002 405 Liquid End Nickel Aluminum Bronze 7201 0080 00E 1 1 4 x 5 7 8 Stuffing Box Stud 7507 2738 00A 3 4 x 3 1 2 Stud Discharge Flange 7507 2735 00A 1 1 4 x 4 Valve Cover Stud 7507 2737 00A 1 1 4 8 NC Nut Heavy Hex 141 114008 243 3 4 x 3 Stud Suction Flange 7507 2795 00A 3 4 NC Nut Heavy Hex 133 034010 243 1 1 8
58. sive heat on the crankshaft which tends to distort its geometry Cups outer races of tapered roller bearings may be extracted from bearing carrier using a conventional bearing puller tool of the automotive type widely available Do not attempt to use heat on a bearing carrier as this will result in severe distortion out of round Replace the bearing carrier if broken or out of round CONNECTING ROD CROSSHEAD EXTENSION ROD CROSSHEAD PIN AND WIPER BOX ASSEMBLY DISASSEMBLY GENERAL Myers Aplex Series connecting rod assemblies employ precision automotive type steel backed Babbitt lined crankpin bearing halves which require no shims for clearance adjustment This pump employs full circle piston type crossheads and hardened stainless steel extension rods which are field replaceable Extension rods are provided with wrenching flats to permit tightening of the tapered thread into the crosshead establishing accurate alignment while affording easy field installation Before beginning the assembly all parts must be cleaned removing all oil dirt rust and foreign matter which prevent proper fitting or which might tend to score the rubbing surfaces Clean and examine the power frame bores for scoring and abnormal wear especially wear of the lower crosshead guide way Hone smooth if rough Measure the bores of the frame using inside micrometers to determine abnormal frame wear if any Crosshead 0 D 6 740 6 737 New
59. this loss of available hydraulic head is proportional to a The speed rpm of the crankshaft b The average liquid velocity in the piping c The length of the suction piping d The number of pumping chambers triplex etc e The compressibility of the liquid Thus for a given pump acceleration head effects may be reduced by the use of the shortest possible suction line sized to reduce liquid velocity to a very low speed This is often more economical than the use of charge pumps or suction stabilizers NOTE Charge pumps should be sized to 150 of rated pump volume Charge pumps need to be centrifugals not a positive displacement pump 11 A charging pump is usually not a good substitute for a short direct oversize suction line nor is it a substitute for the computation of available NPSH acceleration head friction head vapor pressure and submergence effects duly considered Required NPSHR of Myers Aplex Series pumps depends on speed choice of plunger size and valve spring type Consult Myers Aplex Series Engineering for help with your particular application A common design mistake is the connecting of two or more reciprocating pumps to a common suction header Each pump should be fed by its own separate individual piping system free from the effects of other pump cyclical demands for liquid DISCHARGE PIPING A properly designed discharge piping system usually prevents the need of a pulsation da
60. tuffing boxes with plungers separable from the extension rods If desired the boxes plungers and packing units may be installed or removed as a unit assembly permitting service outside the pump All boxes are retained by four studs and nuts and are centered in the frame bore ensuring correct alignment The plungers may also be removed separately without box removal to facilitate repacking With this option the necessary space required to remove plunger it is first necessary to remove the extension rod PENTAIR MYERS APLEX SERIES SPRING LOADED PACKING SPRING GUIDE Compression Packing SPACERS GLAND RING Sey PACKING GA D DS UX Aras x SPRING da EL CNN SCH NN LS pa ea GLAND RING B SPRING GUIDE Chevron Packing Note that the gland is screwed tightly onto the box and contacts its face The spring is providing all of the initial compression and adjustment No adjustment is provided by the gland Since the force exerted by the spring is contingent on the space provided for it the correct lengths of all rings are essential for good tensioning Spring A stiff Inconel spring which closely fits the bore of the stuffing box is used in this assembly This spring is compressed in a vise to the operating length required plus 0 25 and tied with waxed nylon spot tie cord The cord is looped over the ends of the spring through the coils a
61. ve seat pulling instructions and should be clean and of adequate size A torque wrench will be required to tighten connecting rod cap screws A properly sized and set relief valve installed in the pump discharge system ahead of any block valves is necessary to protect personnel and to avoid dangerous overpressure The relief valve set pressure should be not more than 25 above the design operating pressure and should discharge to tank or to the atmosphere toward the ground and must not be directed back to the pump suction system WARNING Improper use of this equipment could result in loss of life CALIFORNIA PROPOSITION 65 WARNING WARNING This product and related accessories contain chemicals known to the State of California to cause cancer birth defects or other reproductive harm STORAGE Pumps are shipped dry from the factory If a pump has been in storage in a humid environment for more than six months the crankcase cover should be removed and carefully examined for rust or water collected in the power end Flush out any evidence of rust or damage that exists using a light clean oil Pumps to be placed in extended storage should be cleaned repaired as needed and completely filled to the top with clean oil to prevent rusting Rotate pump monthly 4 1 2 revolutions Plug all openings to prevent air entry and oil leakage Fluid ends must be completely drained of water and suction and discharge ports blanked off Stor
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