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Section:

MOYNO

®

500 PUMPS

Page: 1 of 8
Date: March 1, 1998

SERVICE MANUAL

MOYNO

®

500 PUMPS

300 SERIES

331, 332, 333, 344, 356 AND 367 MODELS

MODELS

DESIGN

FEATURES

33101 34401
33201 35601
33301 36701

33104 34404
33204 35604
33304 36704

33108 33308
33208 34408

34411
35611

35613

Housing:

Cast Iron

AISI 316 SS

Nylon

Cast Iron

AISI 316 SS

Pump Rotor:

Chrome plated
416 SS

Chrome plated
316 SS

Chrome plated
416 SS

Chrome plated
416 SS

Chrome plated
316 SS

Pump Stator:

NBR (Nitrile)

NBR (Nitrile)

NBR (Nitrile)

NBR (Nitrile)

NBR (Nitrile)

Shaft:

416 SS

316 SS

416 SS

416 SS

316 SS

Flexible Joint:

Carbon steel/
NBR

316 SS/
NBR

Carbon steel/
NBR

Carbon steel/
NBR

316 SS/
NBR

Bearings:

Ball (sealed)

Ball (sealed)

Ball (sealed)

Ball (sealed)

Ball (sealed)

Mechanical Seal:

Carbon-ceramic

Carbon-ceramic

Carbon-ceramic

---

---

Packing:

---

---

---

Braided PTFE

Braided PTFE

Note: Alternate elastomers available. Refer to Repair/Conversion kit numbers, page 8.

INSTALLATION

Mounting Position

.

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.

Pre-Wetting.

Prior to connecting pump, wet pump

elements and mechanical seal or packing by adding fluid to
be pumped into suction and discharge ports. Turn shaft
over several times in a clockwise direction to work fluid into
elements.

Piping.

Piping to pump should be self-supporting to avoid

excessive strain on pump housings. See Table 1 for suction
and discharge port sizes of each pump model. 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 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 to

prevent damage to pump. Check direction of rotation before
startup.

Water Flush of Packing (356 Models Only).

The packing

may be either grease lubricated through a grease fitting in
the stuffing box or have plumbing connected to the housing
to allow a water flush.

Maximum speed is 1750 rpm.
When the material being pumped is abrasive in nature, it

may be advantageous to flush the packing to prevent
leakage under packing and excessive shaft wear.

Mechanical Seal Models

Packing Gland Models

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Содержание 20302

Страница 1: ...To prevent damage to pump pump rotation must be clockwise when facing pump from motor end OPERATION Self Priming With wetted pumping elements the 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 DO NOT RUN DRY Unit depends on liquid pumped for lubrication For proper lubrication flow rate should be at least ...

Страница 2: ...ING 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 2 Remove screws 112 holding suction housing 2 and pump body 1 to motor 70 Remove suction housing 2 and stator 21 3 Remove rotor 22 from shaft by turning in a counterclockwise direction Keep shaft...

Страница 3: ...al Seal NBR 320 6480 000 70 Motor 330 4596 000 110 Slinger Ring 320 2833 008 112 Screws 4 req 619 0050 301 Recommended spare parts REPAIR CONVERSION KIT NUMBERS Not available as kit for 20352 20452 Models 205 Models 220 Models Item No Description NBR EPDM FPM NBR EPDM FPM Kit No 311 9116 000 311 9118 000 311 9120 000 311 9117 000 311 9119 000 311 9121 000 21 Stator 330 6381 120 330 6381 320 330 63...

Страница 4: ... 1999 by Moyno Inc Printed in U S A Moyno is a registered trademark of Moyno Inc ...

Страница 5: ... With wetted pumping elements the pump is capable of 25 feet of suction lift when operating at 1750 rpm with pipe size equal to port size Be sure suction lines are air tight or pump will not self prime Note Self priming capabilities will vary depending on fluid viscosity DO NOT RUN DRY Unit depends on liquid pumped for lubrication For proper lubrication flow rate should be at least 10 of rated cap...

Страница 6: ...and shaft 5 assembly can be removed from the pump body 1 after the snap ring 7 has been removed To remove the assembly tap the shaft at the threaded end using a block of wood to protect the threads Pull slinger ring 11 from shaft The bearings 6 may then be pressed off the shaft Note When replacing bearings always press on the inner race when assembling to shaft and on the outer race when pressing ...

Страница 7: ...320 6489 000 6 Bearing 2 req 630 0502 021 7 Snap Ring 320 4211 000 8 Mechanical Seal 320 4215 000 9 Screws 4 req 320 4787 006 619 0850 061 320 4787 006 619 0850 061 320 4787 006 619 0850 061 320 4784 006 10 Pipe Plug 610 0420 010 11 Slinger Ring 320 2833 008 Recommended spare parts REPAIR CONVERSION KIT NUMBERS Not available as kit for 203 204 Models 205 Models 220 Models Item No Description NBR E...

Страница 8: ... 1999 by Moyno Inc Printed in U S A Moyno is a registered trademark of Moyno Inc ...

Страница 9: ...s Check power connections for proper voltage Voltage variations must not exceed 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 pump is capable of 25 feet of suction lift with pipe size equal to port size Be sure suc...

Страница 10: ... suction and discharge piping Drain pump body by removing drain plug 261B 2 Remove screws 112 holding suction housing 2 to discharge housing 1 Remove suction housing 2 and stator 21 3 Remove rotor 22 from flexible joint 24 by turning counterclockwise RH thread On pinned 3 phase models remove rotor pin 45 with suitable punch 4 Flexible joint 24 can be removed from motor shaft by using a 3 16 allen ...

Страница 11: ...Hex Hd 4 req Carbon Steel 619 1530 161 3 8 16 x 1 Stainless Steel 320 6715 005 3 8 16 x 1 135 Stator Ring Carbon Steel 320 7812 000 Stainless Steel 362 1774 000 215 Lock Washer 8 req 320 6464 000 215A Lock Washer 4 req Carbon Steel 623 0010 411 Stainless Steel 320 6717 002 261 Pipe Plug 1 4 NPT Carbon Steel 610 0120 021 Stainless Steel 610 0420 020 Rotor Threaded 316 SS 320 2933 000 320 2942 000 3...

Страница 12: ... Item No Description NBR EPDM FPM NBR EPDM FPM Kit No 311 9106 000 311 9110 000 311 9114 000 311 9107 000 311 9111 000 311 9115 000 21 Stator 340 3503 120 340 3503 320 340 3503 520 340 3504 120 340 3504 320 340 3504 520 24 Joint 320 1612 000 320 6973 000 320 6984 000 320 1612 000 320 6973 000 320 6984 000 69 Seal 320 2424 000 320 6379 000 320 6501 000 320 2424 000 320 6379 000 320 6501 000 45 Pin ...

Страница 13: ...als to prevent possible seal leakage into bearings Pre Wetting Prior to connecting pump wet pump elements and mechanical seal or packing by adding fluid to be pumped into suction and discharge ports Turn shaft over several times in a clockwise direction to work fluid into elements Piping Piping to pump should be self supporting to avoid excessive strain on pump housings See Table 1 for suction and...

Страница 14: ...ion lift or vacuum Pump Overloads 1 Excessive discharge pressure Check discharge pressure for maximum rating given in Table 1 Check for obstruction in discharge pipe 2 Fluid viscosity too high Limit fluid viscosity to 20 000 CP or 100 000 SSU Viscosity CP Limit RPM 1 300 1750 300 1 000 1200 1 000 2 000 700 2 000 5 000 350 5 000 10 000 180 10 000 20 000 100 3 Insufficient motor HP Check HP requirem...

Страница 15: ...nch wrench on 356 Models and turn in a counter clockwise direction 5 The packing 42 can be removed without removing the shaft 26 using the following procedure a Remove gland bolts 47 b Slide gland 41 away from packing 42 c Pull out packing 42 and lantern ring halves 57 on 356 Models using a packing removing tool Note Packing can be removed after shaft has been re moved by pushing out from pump sid...

Страница 16: ...assembly into pump body 1 positioning slinger ring 77 between packing gland 41 and bear ing end of pump body Secure the shaft assembly with snap ring 66 4 Thread flexible joint 24 into shaft 26 in a clockwise direction RH thread 5 Thread rotor 22 onto flexible joint 24 in a clockwise direction RH thread 6 Slide stator 21 on rotor 22 On 331 and 332 Models insert rounded end of stator ring 135 into ...

Страница 17: ...Page 5 ...

Страница 18: ...pacer 320 1900 000 41 Packing Gland 320 0101 004 42 Packing 340 3396 005 47 Gland Bolt 619 1520 161 66 Snap Ring 320 1506 000 66A Snap Ring 320 4182000 69 Mechanical Seal 320 2424 000 77 Slinger Ring 320 6382 000 320 6384 000 100 Pipe Plug 3 req 610 0120 021 112 Screws 8 req 619 1430 103 320 5968 000 619 0860 081 619 1430 103 112C Screws 4 req 61 9 0890 281 135 Stator Ring 331 332 only 320 7812 00...

Страница 19: ...1749 000 316SS 320 4436 000 26 Drive Shaft 320 1759 000 320 4430 000 320 2765 000 320 4435 000 330 1805 000 330 1805 015 29 Bearing 2 req 630 0552 051 630 0552 061 33 Bearing Spacer 320 2764 000 41 Packing Gland 320 0003 004 320 0003 007 42 Packing 340 3396 008 45 Rotor Pin 320 4439 002 46 Shaft Pin 320 4439 001 47 Gland Bolt 619 1530 241 57 Lantern Ring Half 320 6585 000 66 Snap Ring 320 1758 000...

Страница 20: ... Models 367 Models Item No Description NBR EPDM FPM NBR EPDM FPM Kit No Mech Seal Models 311 9033 000 311 9032 000 311 9058 000 311 9060 000 311 9036 000 311 9124 000 21 Stator 340 3505 120 340 3505 320 340 3505 520 340 3506 120 340 3506 320 340 3506 520 24 Flex Joint 320 1583 000 320 6369 000 320 4671 000 320 1749 000 320 6378 000 3206515 000 69 Seal 320 3945 000 320 6380 000 320 6510 000 320 175...

Страница 21: ...pm OPERATION Self Priming With wetted pumping elements the pump is capable of 25 feet of suction lift when operating at 1750 rpm with hose size equal to port size Be sure suction lines are air tight or pump will not prime DO NOT RUN DRY Unit depends on liquid pumped for lubrication For proper lubrication flow rate should be at least 10 of rated capacity at a given rpm Pressure and Temperature Limi...

Страница 22: ... 142 3 Remove screws 112 which secure suction housing 2 to pump body 1 Remove suction housing 2 and stator 21 4 Rotor 22 can be removed from shaft by turning in a clockwise direction LH thread 5 Remove rubber washer and ceramic seal face from shaft Lift seal body out of seal bore in pump body If any parts of the mechanical seal 69 are worn or broken the complete seal assembly should be replaced Se...

Страница 23: ...c 64 Cushion Ring 2 req 320 1733 000 64 A Outer Ring 2 req 320 1734 000 69 Mechanical Seal 320 6976 000 320 6977 000 320 6978 000 112 Screws 6 req 320 6936 000 142 Pump Support 330 1697 000 146 Clamp 2 req 320 4277 000 Recommended spare parts 30100 pump is the same as 30102 less base NBR Nitrile EPDM Ethylene Propylene Diene Terpolymer FPM Fluoroelastomer When ordering parts please specify pump mo...

Страница 24: ... 1999 by Moyno Inc Moyno is a registered trademark of Moyno Inc Printed in U S A ...

Страница 25: ...on clogging type check valve should be used in discharge piping to prevent flow back through pump Use pipe dope or tape to facilitate disassembly and to provide seal Drive Any 56 frame C face 1 HP 1750 rpm motor may be selected to meet code or application requirements Motor is bolted directly to pump flange using hardware supplied with pump CAUTION Use only the rectangular key 202 supplied with ha...

Страница 26: ...tter ring adjust as required Check cutter tips for position reposition as required Check for bent shaft Replace shaft adjust cutter section and check pressure at discharge port 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 Disconn...

Страница 27: ...8 112B Screw Hex Hd 4 req 619 1530 161 3 8 16 x 1 112C Screw SS Hex Hd 18 req 320 5615 014 1 4 20 x 1 112D Screw SS Cap 4 req 320 5395 016 1 4 20 x 1 1 2 196 Cutter Ring 330 4200 000 202 Key 320 6292 000 3 16 x 1 4 x 3 4 215A Lock Washer SS 4 req 623 0010 411 3 8 215B Lock Washer SS 18 req 320 5616 039 1 4 405 Cutter Clamp 4 req 320 5887 000 434 Coupling 320 5811 000 435 Set Screw 606 0060 053 438...

Страница 28: ...Mounting Hardware Kit When ordering parts please specify pump model number pump serial number part number part description and quantity Page 4 ...

Страница 29: ...n a clockwise direction RH thread 9 Attach cutter tip 439 to cutter clamp 405 using screw 112A See Figure 2 for correct position CAUTION Be sure to use a thread locking compound on threads of screws 112A 10 Install cutter ring 196 and cutter tip cutter clamp assemblies using the following procedure a Place cutter ring 196 in stator housing 14 b Position cutter tip cutter clamp assemblies on cutter...

Страница 30: ... 1999 by Moyno Inc Moyno is a registered trademark of Moyno Inc Printed in U S A ...

Страница 31: ...ng 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 Water Flush of Packing Packing Models Only The packing may be either grease lubricated through a grease fitting in the stuffing box or have plumbing connected to the housing to allow a water flush When the material bei...

Страница 32: ...ition Mechanical Seal Leakage Mechanical Seal Models Only 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 Packing Leakage Packing Models Only 1 Leakage at startup Adjust packing as outlined in maintenance instructions Note Slight leakage is necessary for lubricat...

Страница 33: ... 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 radial bearing 29 and thrust bearing 30 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 w...

Страница 34: ...t from turning and rotate the stator counterclockwise while pushing towards suction housing Care should be taken to insure that flexible joint does not bend more than 15 degrees 9 Secure top and bottom halves of stator support 38 together using screws 112B Model 603 requires stator support bushings 71 between stator and stator support 10 Proceed as in installation instructions WARNING Replace belt...

Страница 35: ...ing Gland 320 0003 004 42 Packing 340 3396 008 46 Rotor Pin Shaft Pin 3 req 320 4486 003 47 Gland Bolt 2 req 619 1530 241 57 Lantern Ring Half 2 req 320 6585 000 66 Snap Ring 320 2794 000 69 Mechanical Seal 320 3945 000 71 Stator Support Bushing 2 req 320 5306 000 77 Slinger Ring 320 6384 000 83 Suction Housing Gasket 320 3028 000 112 Screw 4 req 619 1520 161 112 Screw 8 req 619 1520 161 112A Scre...

Страница 36: ...5 000 EPDM Kit No 320 6506 000 NBR Nitrile EPDM Ethylene Propylene Diene Terpolymer REPAIR CONVERSION KIT NUMBERS PACKING GLAND Item No Description All Packing Gland Models Kit No 311 9049 000 3 Packing Housing 340 2368 000 27 Drive Shaft Extension 330 4586 000 41 Packing Gland 320 0003 104 42 Packing Set 340 3351 008 46 Shaft Pin 3 req 320 4486 003 47 Gland Bolt 2 req 619 1530 241 57 Lantern Ring...

Страница 37: ...ive strain on pump housings Electrical Follow the wiring diagram on the motor name plate 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 The motor is provided with internal automatic over load protection To prevent damage to t...

Страница 38: ...k 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 2 Remove clamp 112 holding suction housing 2 to dis charge housing 1 Remove suction housing 2 and stator 21 3 Remove rotor 22 from flexible joint 24 by tur...

Страница 39: ...3308808000 5HP 90VDC TENV 70 Motor DC Sanitary 3308808003 5HP 90VDC TENV Washdown 77 Slinger Ring 3206382000 112 Clamp 3621775000 135 Stator Ring Hygienic 3207812000 135 Stator Ring Sanitary 3621774001 137 Gasket 62 OD 3308806101 Nitrile 3308806301 EPDM 3308806501 FPM 140 Gasket 78 OD 3308806102 Nitrile 3308806302 EPDM 3308806502 FPM 141 Seal Driver 3308801015 Sanitary only 6 Thread rotor 22 onto ...

Страница 40: ... EPDM Ethylene Propylene Diene Terpolymer FPM Fluoroelastomer PARTS LIST HYGIENIC MODELS Page 4 ABRASION RESISTANT SEALS Hygienic only Elastomer All 331 344 Models NBR 3206460000 EPDM 3206502000 FPM 3206503000 2002 by Moyno Inc Moyno is a registered trademark of Moyno Inc Moyno Inc is a Unit of Robbins Myers Inc When ordering parts please specify pump model number pump serial number part number pa...

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