Moyno® Metering/Dosing Pump :: Service Manual (Closed
Contents
1. 10 of nameplate voltage Motor is provided with internal automatic 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 air tight 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 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 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 prior to disassembly Failure to do so could lead to electric shock or serious bodily harm Failure to Pump 1 Mot2. seal 69 70 using 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 3 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 Wes Deere ALA Models mere On packed pumps perform the following a Insert the packing rings 72 into the stuffing box 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 inser
3. 0010401 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 SS Name Plate 1 3208597000 1998 by Moyno Inc Moyno is a registered trademark of Moyno Inc Moyno Inc is a Unit of Robbins amp Myers Inc Note For further information call 800 845 1310 Western USA 800 325 1331 Central amp Eastern USA or 937 327 3553 Ohio 320 8595 000 Printed in U S A
4. 04 3403924309 3403925304 3403925304 3403923304 3403924304 3403925304 21 F Stator 1 3403923504 3403924504 3403925504 3403925504 3403923504 3403924504 3240392504 22 CD Rotor 1 3403927007 3403928007 3403929007 3403929007 3403927007 3403928007 3403929007 22 SS Rotor 1 3403927015 3403928015 3403929015 3403929015 3403927015 3403928015 3403929015 24 Q R Flexible Joint 1 3308811001 24 B Flexible Joint 1 3308811003 24 F Flexible Joint 1 3308811005 26 CD SS Drive Shaft Assy 1 3403943001 3403943002 3403943003 27 CD SS Set Screw 2 6060340040 38 CD SS Stator Support 1 3403945001 39 CD SS Sta Sup Retainer 1 3201733000 40 CD SS Clamp Assy 1 3204277000 and 3201734000 46 CD SS Rotor Shaft Pin 2 3204069001 65 CD SS Packing Gland Half 2 3403933007 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 Std 1 3206460000 69 B Mechanical Seal Std 1 3206502000 69 F Mechanical Seal Std 1 3206503000 70 CD SS Stud 2 3208591000 70 Q R Double Mech Seal 1 3208652000 70 B Double Mech Seal 1 3208652001 70 F Double Mech Seal 1 3208652002 71 CD SS Seal Housing Double 1 3403986015 72 CD SS Packing Set 1 3403396002 72 Q R B F O Ring 1 3207902128 73 CD SS Seal Gland Double 1 3403985015 112 CD SS Screw 4 6191520141 215 CD SS Lock Washer 4 623
5. MOYNO Always the Right Solution Section METERING DOSING PUMPS Page 1 of 4 Date May 1 1998 SERVICE MANUAL METERING DOSING PUMP CLOSE COUPLED B4015B B4100B B4190B B4190C B4015D B4100D AND B4190D MODELS DESIGN FEATURES Housing Cast iron 316 SS Pump Rotor Chrome plated AISI 416 stainless steel Chrome plated 316 stainless steel Pump Stator Nitrile Natural Rubber EPDM Fluoroelastomer Seal Single and double mechanical carbon ceramic packing Drive 56C face 140TC face motors and reducers gear reducers with 120 MM flange 1 shaft Example SEW EURODRIVE R40F 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
6. and discharge ports 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 boo
7. or will not start 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
8. 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 n le Seal Models Packing 300 21 40 39 9 Models ae fe A a 2 Seale SERRE aA ENAN 22 La Fay Aa a Page 4 CLOSE COUPLED MODELS PARTS LIST PUMP MODELS Item Type Description Req B4015B B4100B B4190B B4190C B4015D B4100D B4190D 1 CD SS Drive Adapter 1 350168801 3501688003 2 CD Suction Housing 1 3403932001 2 SS Suction Housing 1 3403932007 3 CD SS Seal Housing 1 3403930007 4 CD SS Stuffing Box 1 3403934007 9 CD Discharge Coupling 1 3205341020 9 SS Discharge Coupling 1 3205342020 21 Q Stator 1 3403923104 3403924104 3403925104 3403925104 3403923104 3403924104 3403925104 21 R Stator 1 3403923204 3403924204 3403925204 3403925204 3403923204 3403924204 3403925204 21 B Stator 1 34039233
9. tion Support flexible joint and insert rotor 22 aligning holes 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 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 3 o A a Double Seal UN NZ ap VEn NZ Hi N NP ON SAG X re oe we MW ZX uf z UA area Dares Oo Remove two positioning set screws after mounting drive yma Tee 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 and discharge piping and
10. ts If sealing boots 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 drive shaft assembly 26 locking the drive shaft assembly to the motor gearmotor shaft 4 On packed pump skip to Step 5 Install the mechanical
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