Related Manuals for GP MW Series
Summary of Contents for GP MW Series
- Page 1 Owner’s Manual • Installation • Use • Maintenance General Pump is a member of the Interpump Group MWS45A-MWS50A-MWS55A Ref 300790 Rev. H MW32A-MWS36A-MWS40A 03-18...
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Page 2: Table Of Contents
MW SERIES GENERAL PUMP A member of the Interpump Group INDEX INTRODUCTION ............. . . Page 4 DESCRIPTION OF SYMBOLS . - Page 3 MW SERIES GENERAL PUMP A member of the Interpump Group INDEX SPECIAL VERSIONS ............Page 26 17.1 MWN Pump .
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Page 4: Introduction
MW SERIES GENERAL PUMP A member of the Interpump Group 1. INTRODUCTION This manual describes the use and maintenance instructions of the MW pump, and should be carefully read and understood before using the pump. Correct use and adequate maintenance will guarantee the pumps trouble-free operation for a long time. General Pump declines any responsibility for damage caused by misuse or the non-observance of the instructions indicated in this manual. -
Page 5: Safety
MW SERIES GENERAL PUMP A member of the Interpump Group 3. SAFETY 3.1 General Safety Indications Improper use of pumps and high pressure systems, and the non-compliance with installation and maintenance instructions may cause severe injury to people and/or damage to property. Anyone assembling or usinge high pressure systems must possess the necessary competence to do so, should be aware of the characteristics of the components assembled/used, and must take all precautions necessary to ensure maximum safety in any operating condition. -
Page 6: Safety During Unit Maintenance
MW SERIES GENERAL PUMP A member of the Interpump Group Note: appropriate clothing will effectively protect against water spray, but it may not offer adequate protection against the direct impact of water jets or sprays from a close distance. Some circumstances may require further protection. -
Page 7: Technical Characteristics
MW SERIES GENERAL PUMP A member of the Interpump Group 5. TECHNICAL FEATURES FLOW RATE PRESSURE POWER MODEL l/min MW32A 1500/1800/2200 36.0 4350 MWS36A 1500/1800/2200 45.5 3900 MWS40A 1500/1800/2200 56.0 3050 MWS45A 1500/1800/2200 71.0 2500 MWS50A 1500/1800/2200 87.5 2000 MWS55A 1500/1800/2200 105.5... -
Page 8: Dimensions And Weight
MW SERIES GENERAL PUMP A member of the Interpump Group 6. DIMENSIONS AND WEIGHT For dimensions and weight of MW32A, MWS36A and MWS40A pumps, please refer to fig. 2. Weight: 540 Lbs./244 Kg. fig. 2 For dimensions and weight of MWS45A, MWS50A and MWS55A pumps, please refer to fig. 2a. -
Page 9: Operating Instructions
MW SERIES GENERAL PUMP A member of the Interpump Group 7.INFORMATION ABOUT PUMP USE The MW/S pump was designed to operate with filtered water (see paragraph 9.7) and at maximum temperature of 104 F (40 Other fluids may be used only upon the approval of The Customer Service Department . - Page 10 MW SERIES GENERAL PUMP A member of the Interpump Group In any case, oil must be changed at least once a year since it may deteriorate by oxidation. For room temperatures that differ from that mentioned earlier, follow the indications contained in the diagram below, keeping in mind that the oil must have a minimum viscosity of 180 cSt.
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Page 11: Ports And Connections
MW SERIES GENERAL PUMP A member of the Interpump Group 8. PORTS AND CONNECTIONS MW/S Series pumps are equipped with (see fig. 4 and 4a): 1. 2 inlet ports “IN”, 2” NPT (MW32A, MWS36A, MWS40A). 2 inlet ports “IN”, 2-1/2” NPT (MWS45A, MWS50A, MWS55A). -
Page 12: Pump Installation
MW SERIES GENERAL PUMP A member of the Interpump Group 9. PUMP INSTALLATION 9.1 Installation The pump must be installed in a horizontal position using the M16 threaded support feet. Tighten the screws with a torque of 200 Nm (147.5 Ft-Lb) The base must be perfectly flat and rigid enough as not to allow bending or misalignment on the pump coupling and axis/transmission due to torque transmitted during operation. -
Page 13: Direction Of Rotation
MW SERIES GENERAL PUMP A member of the Interpump Group 9.2 Direction of rotation The PTO rotation is indicated by an arrow located on the reduction gear cover. From a position facing the pump head, the rotation direction will be as in fig. 5. -
Page 14: Hydraulic Connections
MW SERIES GENERAL PUMP A member of the Interpump Group fig. 6 The reducer’s position may be changed only by trained and authorized personnel by carefully following the instructions in the repair manual. 9.4 Hydraulic Connections In order to isolate the system from the vibrations produced by the pump, we advise to build the first section of the duct near the pump (both for intake and delivery) with flexible hose. -
Page 15: Suction Line
MW SERIES GENERAL PUMP A member of the Interpump Group 9.6 Suction Line For the pump’s correct operation, the suction line must have the following characteristics: 1. Minimum internal diameter as indicated in the diagram in paragraph 9.9, and in any case equal or greater than the pump head’s value. -
Page 16: Filtration
MW SERIES GENERAL PUMP A member of the Interpump Group With the pneumatic adjustment valve: The filter must be installed as close as possible to the pump, should allow easy inspection and have the following characteristics: 1. Minimum capacity 3 times greater than the pump’s rated flow value. -
Page 17: Internal Diameter Of Hose
MW SERIES GENERAL PUMP A member of the Interpump Group 9.9 Internal Diameter of the Hose Line To determine the internal diameter of the hose, please refer to the following diagram. Suction Hose With a flow rate of ~105 GPM (400 l/mn) and water speed of 1 m/sec. the diagram line that connects the two scales intersects the central scale, indicating the diameters, at a value of ~ 3.5 inch (90 mm). -
Page 18: V-Belt Transmission
MW SERIES GENERAL PUMP A member of the Interpump Group 9.10 V-belt Transmission As indicated in paragraph 9.1, only in exceptional cases may the pump be driven by a v-belt system. For correct lay-out sizing, please contact our Customer Service Department. -
Page 19: Starting Up
MW SERIES GENERAL PUMP A member of the Interpump Group 10.2 Start-up 1. When starting the pump for the first time, check for the correct direction of rotation. 2. The pump must be started off-load. 3. Verify correct feeding pressure. -
Page 20: Pump Storage
MW SERIES GENERAL PUMP A member of the Interpump Group 12. PUMP STORAGE 12.1 Filling the Pump With An Anti-Corrosion Emulsion or Anit-freeze By Using An External Diaphragm Pump As In The Layout Shown in Paragraph 9.7. a) Close the filter draining, if open. -
Page 21: Troubleshooting
MW SERIES GENERAL PUMP A member of the Interpump Group 15. TROUBLESHOOTING The pump does not produce any noise at start-up: • The pump is not primed and is running dry • There is no water in the inlet line •... -
Page 22: Exploded Views And Parts
GENERAL PUMP MW32A/S36A/S40A SERIES A member of the Interpump Group 16. EXPLODED VIEW AND PARTS LIST Ref 300790 Rev. H Page 22 03-18... - Page 23 MW32A/S36A/40A SERIES GENERAL PUMP A member of the Interpump Group Item Part # Description QTY. Item Part # Description QTY. F73120215 MANIFOLD-NPT F90928000 CONROD HEAD SEMI-BUSHING, UPPER F10744401 DRAIN VALVE F90928100 CONROD HEAD SEMI-BUSHING, UPPER, +0.25 F36208801 BALL VALVE ASSEMBLY F90928200 CONROD HEAD SEMI-BUSHING, UPPER, +0.50 F36206766...
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Page 24: Exploded Views And Parts
MWS45-S50-S55 SERIES GENERAL PUMP A member of the Interpump Group 16. EXPLODED VIEW AND PARTS LIST Ref 300790 Rev. H Page 24 03-18... - Page 25 MWS45-S50-S55 SERIES GENERAL PUMP A member of the Interpump Group Item Part # Description QTY. Item Part # Description QTY. F73120315 MANIFOLD, NPT F90928000 CONROD HEAD SEMI-BUSHING, LOWER F10744501 VALVE OPENING DEVICE F90928400 CONROD HEAD SEMI-BUSHING, LOWER, +0.25 F96751400 WASHER, Ø 21.5X27X1.5 F90928500 CONROD HEAD SEMI-BUSHING, LOWER, +0.50 F98218500...
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Page 26: Special Versions
MWN SERIES GENERAL PUMP A member of the Interpump Group 17. SPECIAL VERSIONS The MW pump is also available in the following special versions: MWN, MWR, MWNR, MWF, MWN The following information is helpful in deciding how to choose and use these versions. Unless specified otherwise, observe the previous instruction for the standard MW/S pump. -
Page 27: Dimensions And Weight
MWN SERIES GENERAL PUMP A member of the Interpump Group 17.1.6 Dimensions and weight For dimensions and weight of MWN32A, MWN36A and MWN40A pumps, please refer to fig. 12. 573 lbs./260 kg. For dimensions and weight of MWN45A, MWN50A and MWN55A pumps, please refer to fig. 12a. Ref 300790 Rev. -
Page 28: Exploded View
MWN32A/N36A/N40A SERIES GENERAL PUMP A member of the Interpump Group 17.1.7 EXPLODED VIEW AND PARTS LIST Ref 300790 Rev. H Page 28 03-18... - Page 29 MWN32A/36A/40A SERIES GENERAL PUMP A member of the Interpump Group Item Part # Description QTY. Item Part # Description QTY. F73120456 MANIFOLD F90928300 CONROD HEAD SEMI-BUSHING, LOWER F98218600 PLUG, G 1/4“X14, SS F90928400 CONROD HEAD SEMI-BUSHING, LOWER, +0.25 F36208801 BALL VALVE ASSY. F90928500 CONROD HEAD SEMI-BUSHING, LOWER, +0.55 F36306766...
- Page 30 GENERAL PUMP MWN45A/50A/55A SERIES A member of the Interpump Group Ref 300790 Rev. H Page 30 03-18...
- Page 31 MWN45A/50A/55A SERIES GENERAL PUMP A member of the Interpump Group Item Part # Description QTY. Item Part # Description QTY. F73120556 MANIFOLD F90928000 CONROD HEAD SEMI-BUSHING, LOWER F99218600 PLUG, G 1/4”X14, SS F90928400 CONROD HEAD SEMI-BUSHING, LOWER, +0.25 F36208701 BALL VALVE ASSY. F90928500 CONROD HEAD SEMI-BUSHING, LOWER, +0.50 F36206666...
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Page 32: Mwr Pump
MWR SERIES GENERAL PUMP A member of the Interpump Group 17.2 MWR PUMP 17.2.1 Operating instructions The MWR pump has been designed to operate in environments with atmospheres that are not potentially explosive and for using water rich in particulate, therefore it is considered ideal for systems with fluid recirculation. -
Page 33: Dimensions And Weight
MWR SERIES GENERAL PUMP A member of the Interpump Group 17.2.6 Dimensions and weight For dimensions and weight of MW40A, please refer to fig. 13. 538 lbs./244 kg. For dimensions and weight of MWR45A, MWR50A and MWR55A pumps, please refer to fig. 13a. 540 lbs./245 kg. -
Page 34: Exploded View
MWR40A SERIES GENERAL PUMP A member of the Interpump Group 17.2.7. EXPLODED VIEW AND PARTS LIST Ref 300790 Rev. H Page 34 03-18... - Page 35 MWR40A SERIES GENERAL PUMP A member of the Interpump Group Item Part # Description QTY. Item Part # Description QTY. MANIFOLD-NPT F98206000 HOLE PLUG. Ø 15, TTN18 F10744401 VALVE OPENING DEVICE F98233500 OIL FILLING PLUG, G1” WITH ROD F36208801 BALL VALVE ASSEMBLY F90361600 OR, Ø...
- Page 36 MWR45-50-55A SERIES GENERAL PUMP A member of the Interpump Group Ref 300790 Rev. H Page 36 03-18...
- Page 37 MWR45-50-55 SERIES GENERAL PUMP A member of the Interpump Group Item Part # Description QTY. Item Part # Description QTY. F73120315 MANIFOLD-NPT F73050443 PLUNGER GUIDE F10744501 VALVE OPENING DEVICE F73050543 PLUNGER GUIDE +0.10 F96751400 WASHER, Ø 21.5X27X1.5 54A F73606201 PISTON GUIDE ASSEMBLY F98218500 STEEL PLUG, 1/2”...
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Page 38: Mwnr Pump
MWNR SERIES GENERAL PUMP A member of the Interpump Group 17.3 MWNR PUMP 17.3.1 Operating instructions The MWNR pump has been designed to operate in environments with atmospheres that are not potentially explosive and for using salt water rich in particulate, therefore it is considered ideal for systems with fluid recirculation. -
Page 39: Dimensions And Weight
MWNR SERIES GENERAL PUMP A member of the Interpump Group 17.3.6 Dimensions and weight For dimensions and weight of MWNRNR40A, please refer to fig. 14. 573 lbs./260 kg. For dimensions and weight of MWNR45A, MWNR50A and MWNR55A pumps, please refer to fig. 14a. 573 lbs./260 kg. -
Page 40: Exploded View
MWNR40A SERIES GENERAL PUMP A member of the Interpump Group 17.3.7. EXPLODED VIEW AND PARTS LIST Ref 300790 Rev. H Page 40 03-18... - Page 41 MWNR40A SERIES GENERAL PUMP A member of the Interpump Group Item Part # Description QTY. Item Part # Description QTY. F98218600 Plug, 1/2”x14 F90928000 CONROD HEAD SEMI-BUSHING, UPPER F93197100 WASHER WITH SEAL F90928100 CONROD HEAD SEMI-BUSHING, UPPER, +0.25 F36208801 BALL VALVE ASSY. F90928200 CONROD HEAD SEMI-BUSHING, UPPER, +0.50 F36206766...
- Page 42 MWNR45-50-55-A SERIES GENERAL PUMP A member of the Interpump Group Ref 300790 Rev. H Page 42 03-18...
- Page 43 MWNR45-50-55-A SERIES GENERAL PUMP A member of the Interpump Group Item Part # Description QTY. Item Part # Description QTY. F98218600 Plug, 1/2”x14 F73210674 LIFTING BRACKET F93197100 WASHER WITH SEAL F99513100 SCREW, M16x30, UNI 5931 F36208701 BALL VALVE ASSY. F73030101 CONNECTING ROD ASSY.
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Page 44: Mwf Pump
MWF SERIES GENERAL PUMP A member of the Interpump Group 17.4 MWF PUMP 17.4.1 Operating instructions The MWF pump has been designed to operate in environments with atmospheres that are not potentially explosive it is ideal for pumping aggressive, poorly lubricating or abrasive fluids. Other fluids can be used only upon formal approval by the Customer Service Department. -
Page 45: Flushing Circuit Diagram Of Use
MWF SERIES GENERAL PUMP A member of the Interpump Group 17.4.8. FLUSHING DIAGRAM Adhere to the following values for proper system operation: minimum circuit flow rate is 2 GPM (8 l/m), maximum fluid pressure is 87 PSI (6 bar). Ref 300790 Rev. H Page 45 03-18... -
Page 46: Repair Tools
MW SERIES GENERAL PUMP A member of the Interpump Group REPAIR TOOLS Pump maintenance may be carried out using simple tools for assembling and disassembling components. The following tools are available: For Assembly: • Shaft (con-rod interlocking) ......... F27566200 •... -
Page 47: Maintenance Log
MW SERIES GENERAL PUMP A member of the Interpump Group 19. MAINTENANCE LOG HOURS & DATE OIL CHANGE GREASE PACKING REPLACEMENT PLUNGER REPLACEMENT VALVE REPLACEMENT GP Companies, Inc. 1174 Northland Drive Mendota Heights, MN 55120 Phone:651.686.2199 Fax: 800.535.1745 Ref 300790 Rev. H www.generalpump.com email: sales@gpcompanies.com...
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