Moyno® Metering/Dosing Pump :: Service Manual
Contents
1. SS Name Plate 1 3208597000 Packing and Double Seal Models 1998 by Moyno Inc Note For further information call 800 845 1310 Western USA 800 325 1331 Central amp Eastern USA or 937 327 3553 Ohio Moyno is a registered trademark of Moyno Inc Moyno Inc is a Unit of Robbins amp Myers Inc 320 8593 000 Printed in U S A Double The Length Of Your Moyno Pump Warranty For FREE For your free pump warranty extension choose from one of the three options below 1 e Go to www moyno com and fill out the registration form online 2 Mail this form by placing it in an envelope and sending it to Moyno Inc 3 Fax this form to 937 327 3177 Attn Tish Wilson P O Box 960 Springfield OH 45501 0960 U S A Thank yOu for choosing a Moyno Pump Please take the time to complete this warranty registration form Upon receipt of your form your standard limited warranty on defective material and workmanship will be extended to twice the standard period of time at no additional cost to you We appreciate your business and look forward to serving you in the future CERTIFICATE No 101442 MOYNO Always the Right Solution Always Insist on Genuine Moyno Replacement Parts Moyno Pump Warranty Registration Pump Model Pump Serial Purchased From Date Purchased Your Name Your Title Your Company Name Address City State Province2. not overtighten On direct drive units coupling components should be aligned and spaced at least 1 16 apart Pump rotation must be clockwise when facing shaft Check direction of rotation before startup Maximum speed is 1750 rpm OPERATION Self Priming With wetted pumping elements the mechanical seal model pump is capable of 15 feet of suction lift when operating at 1750 rpm with pipe size equal to port size DO NOT RUN DRY Unit depends on liquid pumped for lubrication For proper lubrication flow rate should be at least 10 of rated capacity Storage Always drain pump for extended storage periods using pipe plug in suction housing Pressure Limits See Table 1 for maximum discharge pressure of each model Table 1 Models 4015 Max pressure 300 PSI 20 bar Models 4100 Max pressure 300 PSI 20 bar Models 4190 Max pressure 175 PSI 12 bar Temperature Limits Unit is capable for service at 10 F to 210 F with nitrile and to 260 F with EPDM 185 F with natural rubber and 350 F with fluoroelastomer Note an undersize rotor may be required for elevated temperature applications TROUBLESHOOTING WARNING Before making adjustments disconnect power source and thoroughly bleed pressure from system Failure to do so could result in electric shock or serious bodily harm Failure to Pump 1 Belt or coupling slip Adjust belt tension or tighten set screw on coupling 2 Wrong r
3. 0 000 80 Based on 60 min volumetric efficiency See PEC449 for exact values 6 Motor connected incorrectly Motor wired for 230 VAC connected to 115 VAC service Poor Performance 1 Low pressure worn stator Replace stator Check for excessive abrasive material in fluid Check for run dry condition Mechanical Seal Leakage 1 Leakage at startup If leakage is slight allow pump to run several hours to let faces run in 2 Persistent seal leakage Faces may be cracked from freezing or thermal shock Replace seal Pump Will Not Prime 1 Air leak on suction side Check pipe connections Suction lift over 15 ft will cause seal faces to open 2 Defective mechanical seal Inspect and repair as necessary MAINTENANCE General These pumps have been designed for a minimum of maintenance The pump is one of the easiest to work on in that the main elements are very accessible and require few tools to disassemble Bearing Lubrication The prelubricated fully sealed bearings do not require additional lubrication PUMP DISASSEMBLY WARNING Before disassembling pump disconnect power source and thoroughly bleed pressure from system Failure to do so could result in electric shock or serious bodily harm 1 Disconnect power source 2 Remove suction and discharge piping 3 Discharge coupling 9 may be removed from stator 21 by unscrewing in a counter clockwise direction RH thread 4 Remove stator suppo
4. Joint 1 3308811005 26 CD Drive Shaft 1 3303577001 26 Ss Drive Shaft 1 3303577002 26 CD Extended Drive Shaft 1 3311004001 26 SS Extended Drive Shaft 1 3311004002 29 CD SS Bearing 2 6300503031 37 CD SS Body Support 1 3403947001 38 CD SS Stator Support 1 3403945001 39 CD SS Sta Sup Retainer 1 3201733000 40 CD SS Clamp Assembly 1 3204277000 and 3201734000 46 CD SS Rotor Shaft Pin 2 3204069001 66 CD SS Snap Ring 1 3205162000 69 Q R Mechanical Seal Std 1 3202424000 69 B Mechanical Seal Std 1 3206379000 69 F Mechanical Seal Std 1 3206501000 69 Q R Mechanical Seal AR 1 3206460000 69 B Mechanical Seal AR 1 3206502000 69 F Mechanical Seal AR 1 3206503000 70 Q R Double Mechanical Seal 1 3208652000 70 B Double Mechanical Seal 1 3208652001 70 F Double Mechanical Seal 1 3208652002 71 CD SS Seal Housing Double 1 3403986015 72 Q R B F O Ring 1 3207902128 73 CD SS Seal Gland Double 1 3403985015 74 CD SS Adapter 1 3501688004 75 CD SS Packing Set 1 3403396002 76 CD SS Stuffing Box 1 3403934007 77 CD SS Slinger Ring 1 3206382000 78 CD SS Packing Gland Half 2 3403933007 79 CD SS Stud 2 3208591000 83 Q R Housing Gasket 1 3203028001 83 B Housing Gasket 1 3203028003 83 F Housing Gasket 1 3203028005 112 CD SS Screw 4 8 6191520141 215 CD SS Lock Washer 4 8 6230010401 220 CD SS Shaft Key 1 6110030180 261 CD Drain Plug 1 6100120031 261 Ss Drain Plug 1 6100420030 270 Q R O Ring 1 3207902134 270 B O Ring 1 3207904134 270 F O Ring 1 3207905134 300 CD
5. MOYNO Always the Right Solution Section METERING DOSING PUMP Page 1 of 4 Date May 1 1998 SERVICE MANUAL METERING DOSING PUMP BARE SHAFT A4015A A4100A AND A4190A MODELS DESIGN FEATURES Housings Cast iron stainless steel Pump Rotor Chrome plated 416 and 316 stainless steel Pump Stator Nitrile Natural Rubber EPDM Fluoroelastomer Shaft 416 SS 316 SS Bearings Prelubricated fully sealed ball bearings Seal Single or double mechanical seals packing Flexible Joint Prelubricated and sealed INSTALLATION Mounting Provide the proper alignment between the pump and drive by mounting both to a common flat base Pump may be mounted in any position When mounting vertically it is necessary to keep bearings above seals to prevent possible seal leakage into bearings Loosen screws on body support and stator support to rotate pump to desired position Pre Wetting Prior to connecting pump wet pump elements and mechanical seal or packing by adding fluid to be pumped into suction port Turn shaft over several times in a clockwise direction when viewed from the shaft end to work fluid into pump elements Piping Piping to pump should be self supporting to avoid excessive strain on pump housings The suction port is 1 1 2 NPT and the discharge port is 1 1 4 NPT Use pipe dope or tape to facilitate disassembly and to provide seal Drive On belt driven units adjust belt tension to point of non slip Do
6. Zip Code Phone Number Fax Number E mail Application for Which This Pump Was Purchased Flow Rate Material Operating Speed Viscosity Hours Operated per Day Discharge Pressure Continuous Suction Pressure Percent of Solids Particle Size How Did You First Hear of Moyno Pumps U Advertisement Q Distributor Salesperson U Postcard U Trade Show Q Previous Experience With Moyno Pumps Process Temperature pH Value Intermittent NPSH Available Abrasion Rating Q Referral Q Other Explain Below Thank You
7. otation Rotation must be clockwise when facing shaft 3 Excessive suction lift vacuum or obstruction in suction piping 4 Flexible joint broken possible excessive pressure Replace joint check pressure at discharge port Will Not Start 1 Insufficient horsepower Check motor starting torque for minimum model starting torque given on performance curves 2 Low voltage Check power supply Page 2 Noisy Operation 1 Starved suction Check fluid supply length of suction line and obstructions in pipe 2 Bearings worn Replace parts check alignment belt tension pressure at discharge port 3 Broken flexible joint Replace part check pressure at discharge port 4 Insufficient mounting Mount to firm base Vibration induced noise can be reduced by using mount pads and hose on suction and discharge ports Pump Overloads 1 Excessive discharge pressure Check discharge pressure for maximum rating given in Table 1 Check for obstruction in discharge pipe 2 Excessive temperature 3 Belt or coupling slip Check pressure at discharge port 4 Loose bond in stator High temperature and caustics will cause bond between rubber and tube to fail Replace stator Check fluid temperature and pressure at discharge port 5 Fluid viscosity too high See chart below for recommended maximum RPM Viscosity CP Limit RPM 1 1 000 1750 1 000 2 500 1200 2 500 5 000 600 5 000 10 000 300 10 000 20 000 175 20 000 5
8. rt clamp screw and remove top half of stator support 38 5 Stator 21 may be removed from suction housing 2 by unscrewing in a counter clockwise direction RH thread Use a strap wrench on stator to avoid crushing with a pipe wrench Pull stator 21 from rotor 22 To assist removal of stator hold drive shaft 26 from turning and turn stator clockwise when facing suction housing after disengaging thread 6 Remove screws 112 holding suction housing 2 to bearing housing 1 or adapter 74 Remove suction housing and suction housing gasket 83 Gaskets on cast iron models only Remove O Ring 270 on other models 7 The rotor 22 and flexible joint 24 may be removed using the following procedure do not bend joint more than 15 degrees a Remove rotor 22 from flexible joint 24 by using a punch to remove rotor shaft pin 46 Support joint while removing pin b Remove joint 24 from shaft 26 by using a punch to remove shaft pin 46 8 Single Mechanical Seal Models Carefully slide mechanical seal 69 off shaft 26 Carefully pry seal out of bearing housing 1 or seal housing 3 Remove seal housing if pump is a stainless model Double Mechanical Seal Models Carefully slide seal housing 71 from the drive shaft Remove rotational part of mechanical seal from the shaft Carefully remove seal gland 73 from adapter Remove stationary seal faces if required If any parts of mechanical seal are worn ou
9. ssembly into the seal bore in the bearing housing 1 or seal gland and housing seating it firmly and squarely On double seal models install seal gland on shaft c After cleaning and oiling shaft slide the seal body along the shaft until it meets the seal seat d Install seal spring and spring retainer or seal housing with O rings 72 and 270 on shaft 5 The flexible joint 24 and rotor 22 may be installed using the following procedure do not bend joint more than 15 degrees a Pin flexible joint 24 to shaft 26 using the shaft pin 46 b Pin rotor 22 to joint using rotor pin 46 Support joint while installing pin Double Seal Models UZIR fire Page 3 6 Secure suction housing gasket 83 cast iron pumps only and suction housing 2 to bearing housing 1 using lockwashers 215 and screws 112 7 Slide stator support retainer 39 on stator 21 8 Screw coupling 9 on stator 21 in a clockwise direction RH thread NOTE Apply pipe dope on all pipe threads before assembly 9 Lubricate rotor 22 surface to assist installation of stator 21 Slide stator on rotor and screw into suction housing 2 by turning clockwise RH threads An additional assist in installing stator is to lock the shaft from turning and rotate the stator counter clockwise while pushing towards suction housing 10 Secure clamp assembly 40 to the stator support 38 and the
10. support retainer 39 using the clamp assembly 40 screw 11 Proceed as in installation instructions WARNING Replace belt or coupling guards before reconnecting power When ordering parts please specify pump model number pump serial number part number part description and quantity Packing Models 7 ng Stainless Steel Bremer me aad F j 4 On Single Seal Models mike 2 ooi gary Laoi 39 221 9 a da iaaa a l l l i S i I i l y Ki l l l I l r I l i l F na E Cast Iron A Single Seal bos Oa eyo fo Models AO m Page 4 BARE SHAFT MODELS PARTS LIST PUMP MODELS Item Type Description Req A4015A A4100A A4190A 1 CD Bearing Housing 1 3303550000 1 SS Bearing Housing 1 3308813000 2 CD Suction Housing 1 3403932001 2 SS Suction Housing 1 3403932007 3 SS Seal Housing Single 1 3403930007 9 CD Discharge Coupling 1 3205341020 9 SS Discharge Coupling 1 3205342020 21 Q Stator 1 3403923104 3403924104 3403925104 21 R Stator 1 3403923204 3403924204 3403925204 21 B Stator 1 3403923304 3403924304 3403925304 21 F Stator 1 3403923504 3403924504 3403925504 22 CD Rotor 1 3403927007 3403928007 3403929007 22 SS Rotor 1 3403927015 3403928015 3403929015 24 Q R Flexible Joint 1 3308811001 24 B Flexible Joint 1 3308811003 24 F Flexible
11. t or broken the complete assembly should be replaced Seal components are matched parts and are not interchangeable Packing Models Slide stuffing box assembly from the shaft Remove packing gland halves and replace packing 9 The bearings 29 and shaft 26 assembly can be removed from bearing housing 1 after snap ring 66 has been removed To remove the shaft assembly lightly tap the shaft at the flexible joint connection end using a block of wood to protect the shaft The bearings may be pressed off the shaft PUMP ASSEMBLY 1 Press bearings 29 on shaft 26 and locate slinger ring 77 on the shaft near the radial bearing NOTE When replacing bearings always press on the inner race when assembling to shaft and on the outer race when pressing bearings into the housings 2 Press shaft assembly into bearing housing 1 securing with snap ring 66 3 On stainless steel models install seal housing 3 in bearing housing with O Ring 270 installed in the O Ring groove on cast iron pumps On packing models install stuffing box assembly stuffing box packing and packing gland on shaft with O ring 270 installed in the O ring groove 4 Install mechanical seal 69 or 70 using the following procedure a Clean and oil sealing faces using a clean light oil not grease CAUTION Do not use oil on EPDM parts Substitute glycerin or soap and water b Oil the outer surface of the seal seat and push the a
Download Pdf Manuals
Related Search