METERING/DOSING PUMP - Fluid Systems Incorporated
Contents
1. Check power supply Voltage must be 10 of nameplate rating when motor is in locked rotor condition Check for faulty capacitor on 1 phase models 2 Motor runs and thermally kicks out Check for excessive discharge pressure Check for defective centrifugal switch on 1 phase models Increase ventilation to motor Do not use less than 14 wire size Page 2 3 Stator torn possible excessive pressure Replace stator check pressure at discharge port 4 Flexible joint broken possible excessive pressure Replace joint check pressure at discharge port 5 Wrong rotation 3 phase only Rotation must be clockwise when facing pump from motor end Reverse the connections of any two line leads to the motor Pump Overloads 1 Excessive discharge pressure Check pressure at discharge port for maximum ratings given in Table 1 2 Fluid viscosity too high Limit fluid viscosity per How to Select calculations Noisy Operation 1 Excessive suction lift or vacuum Maximum suction lift is 25 feet for water 2 Suction line too small Check pipe size Be sure lines are free from obstructions 3 Pump Cavitates At pump speed of 1725 rpm Viscosity of fluid should not exceed 100 CP or 500 SSU 4 Flexible joint worn Replace joint Check pressure at discharge port 5 Insufficient mounting Mount to a firm base Vibration induced noise can be reduced by using mount pads and short sections of hose on suction and discharge por2. for insertion of rotor pin 46 using a small punch Insert O Ring 270 into the groove in the seal housing 3 or stuffing box 4 Install the drain plug 261 into suction housing 2 using pipe dope or sealing tape to ensure a leak proof seal 10 Attach the suction housing 2 to the drive adapter casting using screws 112 and lockwashers 215 Note a gap will remain between the suction housing and drive adapter casting ORO ma Za Double Seal ig 1 Models kaal mees ra eect N33 n pD NES into the stuffing box O N 00 o 270 4 BIS LA Ds We A lt n INN Sasi pope Tes LAE A A DO ADDA Remove two positioning set screws after mounting drive Packing Models EL aN SNZ OUB Ne oi a k Page 3 11 Slide stator 21 onto rotor 22 using hand soap or equivalent as lubrication Thread stator into suction housing 2 using pipe dope or sealing tape to ensure a leak proof seal To keep the rotor from turning insert a punch into the hole in the flexible joint 12 Slide stator support retainer ring 39 onto the stator 13 Use the stator support clamp 40 to connect the stator support 38 14 Thread discharge coupling 9 onto the stator 21 using pipe dope or sealing tape to ensure a leak proof seal 15 Lubricate rotor and stator by filling the suction housing with fluid to be pumped 16 Firmly mount the pump Connect suction a
3. 01 6100420030 3207902134 3207904134 3207905134 3208597000 a a ee E CI Name Prate tator Materia Element Oire __ B EPDM F Fluoro ams 3403923104 3403923304 3403023504 a050 3202145013 3203676013 3303719013 moo 3403024104 3403925304 3403924504 moo 3403925104 3403925304 3240302504 2400 4252489102 4252489802 4252489502 EI i 00 Series emen Stainless Steel Page 5 MATES WITH THE FOLLOWING GEARMOTORS NORD AND EURODRIVE 120MM FLANGE REMOVE TWO POSITIONING SET SCREWS AFTER MOUNTING DRIVE For further information call Inside U S A 800 845 1310 or 800 325 1331 Outside U S A 937 327 3553 2009 by Moyno Inc Moyno is a registered trademark of Moyno Inc Moyno Inc is part of the Fluid Management Group of Robbins amp Myers Inc Printed in U S A
4. MOYNO Always the Right Solution Section METERING DOSING PUMPS Page 1 of 5 Date July 2009 SERVICE MANUAL METERING DOSING PUMP CLOSE COUPLED B4015D B4050D B4100D B4190D B2400D AND B4400D MODELS DESIGN FEATURES Suction Housing Stainless steel Drive Adaptor Gearmotor Cast iron Pump Rotor Chrome plated 300 series stainless steel Pump Siator Nitrile EPDM Fluoroelastomer Seal Single and double mechanical carbon ceramic packing Drive Gear reducers with 120 MM flange 1 shaft Example SEW and Nord INSTALLATION Mounting Position Pump may be mounted in any position When mounting vertically it is necessary to keep motor above the seals to prevent possible seal leakage into motor Pre Wetting Prior to connecting pump wet pump elements and mechanical seal by adding fluid to be pumped into suction and discharge ports 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 on pipe connections Electrical Follow the wiring diagram on the motor nameplate or inside the terminal box for the proper connections The wiring should be direct and conform to local electrical codes Check power connections for proper voltage Voltage variations must not exceed 10 of nameplate voltage Motor is provided with internal aut
5. g the following procedure a Clean and oil sealing faces using clean oil not grease CAUTION Do not use oil on EPDM parts Substitute glycerin or soap and water b Oil outer surfaces of the seal seat and push seat assembly into the seal housing 8 and seal gland on double seals c Slide the seal housing 3 or seal gland 73 onto the drive shaft assembly 26 seating into the drive adapter 1 d After cleaning and oiling the shaft slide the seal body along the drive shaft assembly 26 until it meets the seal seat e Install the seal spring and spring retainer or second seal body on the shaft f On double seal models insert seal stationary into seal housing 71 mount O ring 72 and slide onto shaft enclosing the double seal ol On packed pumps perform the following a Insert the packing rings 72 alternating the joints 90 b Install the packing gland halves 65 on the studs 70 without tightening on the packing c Slide the stuffing box assembly onto the drive shaft assembly 26 Set the studs horizontal seating the stuffing box into the drive adapter casting Insert the flexible joint 24 into the drive shaft assembly 26 Insert shaft pin 46 into the hole using a small punch The seal spring will move to allow clearance for insertion The spring retainer should rest against the flexible joint 24 after pin insertion Support flexible joint and insert rotor 22 aligning holes
6. nd discharge piping and power source PARTS LIST To determine part numbers for all parts enter the table on the following page with the item number from the pump illustration below Then locate the part number under the applicable model number Notice the type column identifies the materials of construction Parts listed with one part number for example are applicable to all models CAUTION When mounting motor gearmotor or reducer use care in coupling the pump shaft to the motor shaft to avoid seal damage Single Seal Models 300 E A oe Ne SSS SASS lt aa KSSS NY 2112 PAY N a 2 _ d Page 4 CLOSE COUPLED MODELS PARTS LIST 1 JOD Drive Adapter Gearmotor 0168800 Suction Housing 3403932007 Seal Housing 3403930007 Stuffing Box 3403934007 9 SS Discharge Coupling 3205342020 Stator See Stator Table Rotor See Rotor Table Flexible Joint 3308811005 Drive Shaft Assembly 3403943003 27 SS SetScrew 6060340040 Stator Support 3403945001 Stator Support Retainer 3201733000 Clamp Assembly 3204277000 and 3201734000 46 SS JRotor Shaft Pin 0406900 65 SS Packing Gland Ha 40393300 69 Q R B F Mech Seal Cbn vs Cer 3206501000 69 Q R B F Mech Seal AR 3206503000 Double Mechanical Seal 3208652002 Seal Housing Double 3403986015 Packing Set 3403396002 2 Q R B O Ring 0 90 8 Seal Gland Double 3403985015 Packing Gland Stud 3208591000 Screw 6191520141 62300104
7. omatic overload protection To prevent damage to pump pump rotation must be clockwise when facing pump from motor end OPERATION Self Priming With wetted pumping elements the packed pump is capable of 25 feet of suction lift with pipe size equal to port size Be sure suction lines are airtight or pump will not self prime Self priming capabilities will vary due to fluid viscosity Mechanical seal pump can suction lift to 15 feet 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 by removing bottom drain plug in pump body Pressure Limits See Table 1 for maximum discharge of each model Table 1 Models 4015 Max Pressure 300 PSI 20 bar 4050 Max Pressure 300 PSI 20 bar 4100 Max Pressure 300 PSI 20 bar 4190 Max Pressure 300 PSI 20 bar 2400 Max Pressure 175 PSI 12 bar 4400 Max Pressure 300 PSI 20 bar Temperature Limits Unit is capable for service at 10 F to 210 with nitrile 260 F with EPDM 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 prior to disassembly Failure to do so could lead to electric shock or serious bodily harm Failure to Pump 1 Motor will not start
8. ts 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 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 Remove suction and discharge piping Drain pump body by removing drain plug 261 2 Remove discharge coupling 9 from stator 21 3 Remove stator support clamp 40 4 Remove stator 21 by unthreading from the suction housing 2 Lock rotor from turning by inserting a punch into the hole located in the center of the flexible joint 24 This will aid in removing the stator 5 Remove the stator support retainer 39 if desired 6 Remove the suction housing 2 by removing the screws 112 and lock washers 215 7 Remove O Ring 270 from the seal housing 3 71 or the stuffing box 4 Inspect and replace if necessary 8 Remove the rotor amp shaft pins 46 from the flexible joint 24 Support the joint rotor while removing with a small punch These pins should not be reused Replace with new pins upon reassembly 9 Clean and inspect the flexible joint 24 looking for excessive play and breaks in the rubber boots If sealing boo
9. ts are damaged replace the flexible joint 10 If packed model skip to Step 14 Single Seal Remove the mechanical seal 69 spring and spring retainer from the drive shaft assembly 26 Double Seal Remove seal housing 71 and O ring 72 inspect replace if necessary 11 Remove the rotational portion of the mechanical seal from the drive shaft 26 12 Remove the seal housing 3 or seal gland 73 from the drive adapter casting 1 13 Remove the mechanical seal stationary from the seal housing 3 71 and seal gland 73 Replace seal components if worn Go to Step 16 14 Remove the stuffing box 4 from the drive adapter casting 1 15 Remove the packing gland halves 65 from the studs and remove the worn packing 72 16 Remove the set screws 27 from the drive shaft assembly 26 17 Remove the drive shaft assembly 26 from the motor gearmotor shaft 18 Remove the drive adapter casting from the motor gearmotor This completes the pump disassembly PUMP ASSEMBLY 1 Mount the drive adapter casting 1 to the motor gearmotor using appropriate hardware with the windows horizontal 2 Slide the drive shaft assembly 26 onto the motor gearmotor shaft seating firmly against the shaft end 3 Install the set screws 27 into the drife shaft assembly 26 locking the drive shaft assembly to the motor gearmotor shaft 4 On packed pump skip to Step 5 Install the mechanical seal 69 70 usin
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