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Liquiflo

Installation, Operation & Maintenance Manual

MAG-DRIVE Gear Pumps

Models H1-H9, 31-39 & 311 - MC

Forward

This manual provides instructions for the installation, operation and maintenance of the Liquiflo H-Series
and 3-Series Gear Pumps, Magnetically-Coupled (MC) Models H1F, H3F, H5R, H5F, H7N, H7R, H7F,
H9R & H9F; and 31F, 33F, 35R, 35F, 37R, 37F, 39R, 39F & 311F.  It is critical for any user to read and
understand  the  information  in  this  manual  along  with  any  documents  this  manual  refers  to  prior  to
installation and start-up.

Liquiflo  shall  not  be  liable  for  damage  or  delays  caused  by  a  failure  to  follow  the  instructions  for
installation, operation and maintenance as outlined in this manual.

Thank you for purchasing a Liquiflo product.

LIQUIFLO STANDARD TERMS AND CONDITIONS APPLY UNLESS SPECIFIED IN
WRITING BY LIQUIFLO.

Detailed Table of Contents

1. General Information

5. Maintenance & Repair

1.1 General Instructions . . . . . . . . . . . . . . . . . . . 3

5.1 Work Safety . . . . . . . . . . . . . . . . . . 14

1.2 Pump Specifications . . . . . . . . . . . . . . . . . . . 4-6

5.2 Removal from System . . . . . . . . . . 14

1.3 Model Coding . . . . . . . . . . . . . . . . . . . . . . . . 6

5.3 Pump Disassembly . . . . . . . . . . . . . 15-19

1.4 Pump Installation. . . . . . . . . . . . . . . . . . . . . . 7

Cartridge Removal . . . . . . . . . . . . . 15

1.5 Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Gear-Shaft Disassembly . . . . . . . . . 17-18

1.6 Operation & Troubleshooting . . . . . . . . . . . . 7

Removal of Bearing Lock Pins. . . . 18

1.7 Maintenance & Repair. . . . . . . . . . . . . . . . . . 7

Removal of Bearings . . . . . . . . . . . 18

1.8 Repair Kits & Replacement Parts . . . . . . . . . 7

Removal of Outer Magnet . . . . . . . 19

1.9 Returned Goods Authorization (RGA) . . . . . 8

5.4 Pump Assembly . . . . . . . . . . . . . . . 20-30

A: Pump Cartridge Assembly . . . . . . 20-27

2. Safety Precautions

Internal Bearing Flush Option . . . . 20

2.1 General Precautions . . . . . . . . . . . . . . . . . . . 9

Installation of Bearings. . . . . . . . . . 21

2.2 Precautions for Magnetic-Drive Pumps . . . . 9

Installation of Wear Plates . . . . . . . 22-23

Installation of Inner Magnet . . . . . . 24-27

3. Pump & Motor Installation

B: Outer Magnet-Motor Assembly . . 28-29

3.1 Installation of Pump, Motor and Base. . . . . . 10

Outer Magnet Installation. . . . . . . . 29

3.2 General Piping Requirements . . . . . . . . . . . . 10

C: Motor-Pedestal Assembly. . . . . . . 30

3.3 Gear Pump Requirements . . . . . . . . . . . . . . . 11

D: Cartridge Installation. . . . . . . . . . . 30

3.4 General Motor Requirements . . . . . . . . . . . . 11-12

3.4.1 Motor Selection. . . . . . . . . . . . . . . . . . 11

Appendix:

3.4.2 Motor Hook-Up. . . . . . . . . . . . . . . . . . 12

A-1: Fastener Torque Specifications . . . . . . 31

3.4.3 Motor Direction. . . . . . . . . . . . . . . . . . 12

A-2: Retaining Ring Tool Specifications. . . 32

A-3: Wear Allowances. . . . . . . . . . . . . . . . . 33-35

4. Start-Up & Operation

A-4: Pump Parts List . . . . . . . . . . . . . . . . . . 36

4.1 Precautions Prior to Starting Pump . . . . . . . . 13

A-5: Gear-Shaft Assembly. . . . . . . . . . . . . . 37-41

4.2 Operating Requirements . . . . . . . . . . . . . . . . 13

A-6: Reference Drawings . . . . . . . . . . . . . . 42-45

4.3 Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . 13

A-7: Troubleshooting Guide . . . . . . . . . . . . 46-47

Содержание 311F - MC

Страница 1: ...39R 39F 311F MC Table of Contents Forward 2 Section 1 General Information 3 8 Section 2 Safety Precautions 9 Section 3 Pump Motor Installation 10 12 Section 4 Start Up Operation 13 Section 5 Maintenan...

Страница 2: ...Removal 15 1 5 Start Up 7 Gear Shaft Disassembly 17 18 1 6 Operation Troubleshooting 7 Removal of Bearing Lock Pins 18 1 7 Maintenance Repair 7 Removal of Bearings 18 1 8 Repair Kits Replacement Part...

Страница 3: ...damaged in transit B Verify that the pump Serial Number is stamped on the pump s rear housing C Verify that the Liquiflo Stainless Steel Nameplate is secured to the pump s housing D For ATEX certifica...

Страница 4: ...Max Viscosity 2 NPSHR 3 Dry Lift 3 TD 4 UNITS LPM RPM bar mPas m m LPR H Series H1F 1 83 1750 15 5 1 100 000 0 9 0 15 001045 H3F 5 48 1750 15 5 1 100 000 0 6 0 46 003134 H5R 9 13 1750 15 5 1 100 000 0...

Страница 5: ...ambient temperature range of 4 F 20 C and 104 F 40 C 3 For pumps with ANSI 150 RF Flanges the Maximum Operating Pressure Rating of the flange is 285 PSIG within the temperature range of 20 to 100 F Ab...

Страница 6: ...n is 25 glass filled PTFE 2 Metallic material will match pump housing material Exception Note 3 3 Alloy 20 pumps will have all metallic internal parts made from Alloy C 1 3 Model Coding A 15 position...

Страница 7: ...oblem could have several possible causes and multiple remedies for each cause For help with problem solving refer to the Troubleshooting Guide given in Appendix 7 1 7 Maintenance Repair The pump has i...

Страница 8: ...the distributor with the required information see RGA Record below 2 Clean and neutralize pump 3 Package the pump carefully and include the RGA in a visible location on the outside surface of the box...

Страница 9: ...environmental regulations Before performing maintenance on the pump check with appropriate personnel to determine if skin eye or lung protection is required and how best to flush the pump Pay special...

Страница 10: ...s and should be reviewed prior to pump installation 1 All piping must be supported independently and must line up naturally with pump ports 2 DO NOT make final connection of piping to pump until the g...

Страница 11: ...ements 1 The motor must be compatible with the pump and conditions of the application 2 The motor supply voltage must match the nameplate voltage of the motor 3 The motor should never be operated outs...

Страница 12: ...tor damage or fire can result 3 4 3 Motor Direction The motor shaft is magnetically coupled to the drive shaft of the pump Both shafts will turn in the same direction Because the gear pump is bi direc...

Страница 13: ...ct the pump from any kind of line blockage including the inadvertent closing of an isolation valve 6 If the fluid contains suspended solids a filter of at least 400 U S Mesh should be installed in the...

Страница 14: ...ates gears and shafts which require replacement over time due to physical wear The center housing of the pump may also incur physical wear and require replacement see Appendix 3 O rings and retaining...

Страница 15: ...four front housing bolts 27 from the pedestal 16 _____________________________________________________________________________________ 2 Carefully pull the Cartridge straight out NOTE Force must be a...

Страница 16: ...inner magnet and key 13 from the drive shaft _____________________________________________________________________________________ 6 Dislodge the retaining ring 28 from the inner groove on the drive...

Страница 17: ...nd the gear shaft assemblies Remove the O rings 5 from the center housing 21 and discard NOTE Liquiflo Repair Kits come with the gears and shafts preassembled as shown in Appendix 4 If you are using a...

Страница 18: ...e the bearing lock pins 25 from the front and rear housings NOTE If the pins are made of Teflon a pointed tool can be used to extract them as shown If the pins are metallic the bearings should be remo...

Страница 19: ...ectly to the Liquiflo S Adapter P N SADAPT or the Liquiflo Power Frame P N A 620804 Each of these devices can be used to long couple the mag drive pump to the motor If either of these devices are bein...

Страница 20: ...C in front of the pump model code Example Pump Model Code H5FS6PEE100000US Cartridge Model Code CH5FS6PEE100000US 1 Place the front housing 8 and rear housing 2 on a flat surface with the bearing bor...

Страница 21: ...to facilitate this process see photos _____________________________________________________________________________________ 3 Insert the bearing lock pins 25 into the front and rear housings NOTE The...

Страница 22: ...h orientation as shown NOTE Make certain the center housing seats properly over the housing alignment pins in the front housing Installation of Wear Plates Most Liquiflo wear plates are manufactured w...

Страница 23: ..._____ 8 Insert the gear shaft assemblies into the housing as shown NOTE Liquiflo Repair Kits contain the gears and shafts preassembled as shown below If the gears and shafts are not assembled see Appe...

Страница 24: ...ensure even compression on the O ring s surface With Teflon O rings repeat this process several times waiting between retightening This is necessary because the Teflon will cold flow and require a cer...

Страница 25: ...tly larger than the shaft diameter ______________________________________________________________________________ d Push the retaining ring down the shaft and into the inner groove NOTE Polish out any...

Страница 26: ..._______________________________ I MCS MCB MCV Inner Magnets The rounded edge of the inner magnet must face the front housing See diagram at right ______________________________________________________...

Страница 27: ...__________________________________________________________________________ 19 Verify that the containment can O ring is installed see Step 13 Page 24 then attach the containment can 12 to the pump hou...

Страница 28: ...tion the hub as shown on Page 29 e Tighten the two setscrews 17 on the hub _____________________________________________________________________________________ Outer Magnet Pedestal Part Numbers The...

Страница 29: ...must protrude beyond the inner surface of the outer magnet s hub by 1 16 in or 1 6 mm see diagram at right _____________________________________________________________________________________ III IEC...

Страница 30: ...stal should mate freely and mount flush Refer to Appendix 1 for the torque specifications of the fasteners _____________________________________________________________________________________ Part D...

Страница 31: ...5 8 5 37R H7F 1 4 20 UNC x 2 HHCS 4 75 8 5 37F H9R 1 4 20 UNC x 3 HHCS 4 75 8 5 39R H9F 1 4 20 UNC x 3 HHCS 4 75 8 5 39F 311F Containment Can Assembly H1F H9F 1 4 28 UNF x 5 8 HHCS 6 94 10 6 31F 39F 3...

Страница 32: ...d be manufactured from a hard material such as steel Tool Dimensional Specifications inches Tool For Pump Models ID ID Tolerance 1 H1F H3F 31F thru 35F 378 001 2 H5R H5F 37R 37F 311F 503 001 3 H7N thr...

Страница 33: ...on the specifications given in the Wear Allowances Chart see Page 35 Gears Spur gears should have a uniform tooth profile on both the leading and trailing edges If the outer diameter of the gear is wo...

Страница 34: ...he shafts and precisely position the gears inside the housing Worn bearings will eventually allow the rotating gears to contact the center housing causing wear and eventual failure of both of these co...

Страница 35: ...625 0 623 0 125 0 122 0 625 0 628 39F 1 711 1 705 0 625 0 623 0 125 0 122 0 625 0 628 311F 1 711 1 705 0 500 0 498 0 125 0 122 0 500 0 503 O D Outer Diameter I D Inner Diameter NOTES Photo 1 1 Pump mo...

Страница 36: ...preassembled in a standard repair kit as shown above These parts can also be purchased separately For the procedure for assembling the gears and shafts see Appendix 5 Other assembly parts and quantit...

Страница 37: ...Key 1 Retaining Ring 2 Retaining Ring 2 Description of Parts Shafts As shown above the pump contains two kinds of shafts the drive shaft and the idler shaft Both shafts have retaining ring grooves and...

Страница 38: ...5 06 2 3 Series 31F 33F 3 8 4 71 6 24 1 91 2 35R 35F 3 8 5 20 6 73 2 40 4 37R 37F 1 2 6 47 8 00 3 81 4 39R 5 8 6 96 8 49 4 31 2 39F 5 8 7 71 9 24 5 06 2 311F 1 2 7 71 9 24 5 06 2 1 For MCS MCU MCB MC...

Страница 39: ...ength L of Teeth UNITS in in in H Series H1F 1 163 3 8 1 8 3 8 Hub 12 H3F 1 163 3 8 3 8 12 H5R 1 163 1 2 5 8 12 H5F 1 163 1 2 7 8 12 H7N 1 750 5 8 5 8 11 H7R 1 750 5 8 1 11 H7F 1 750 5 8 1 11 H9R 1 75...

Страница 40: ..._______________________________________________ 2 Strike the top end of the shaft with a rubber mallet to force the retaining ring onto the bottom end of the shaft as shown ___________________________...

Страница 41: ...f the gear with the key on the shaft then slide the gear over the key until the gear contacts the retaining ring _____________________________________________________________________________________ 6...

Страница 42: ...nt Housing 3 8 16 4 8 Front Housing 1 27 Bolt Front Housing 3 8 16 x 1 HHCS 4 9 Plug 1 8 NPT 1 28 Retaining Ring 6 10 Outer Magnet Assembly 1 29 Nut Housing 4 11 Inner Magnet Assembly 1 30 Lockwasher...

Страница 43: ...Maintenance Manual MAG DRIVE Gear Pumps Models H1 H9 31 39 311 MC 43 Appendix 6 Reference Drawings Continued Exploded View Drawing Mag Drive Pump Close Coupled Note Pump Models H7 H9 37 39 311 each h...

Страница 44: ...Housing 3 8 16 4 8 Front Housing 1 27 Bolt Front Housing 3 8 16 x 1 HHCS 4 9 Plug 1 8 NPT 1 28 Retaining Ring 6 10 Outer Magnet Assembly 1 29 Nut Housing 4 11 Inner Magnet Assembly 1 30 Lockwasher Ho...

Страница 45: ...Size Flanged 2 P Port to Port Threaded PP Length 3 L Base to Port CL BP Hole to Port CL HP ANSI DIN H Series 3 Series in in mm in in in in H1F H3F 31F 33F 1 4 1 2 10 2 68 9 31 4 50 3 06 H5R H5F 35R 3...

Страница 46: ...not too long Fully open any suction valves Bypass valve open Close bypass valve Partly clogged strainer Clean strainer Speed too low Increase driver speed if possible Use larger size pump if required...

Страница 47: ...ect grout and regrout if necessary Worn pump bearings Replace bearings Worn motor bearings Replace bearings or motor Pump cavitation Increase NPSH available Excessive product leakage Static seal failu...

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