1. Manuals
  2. Brands
  3. IMO Manuals
  4. Water Pump
  5. *G3D-250
  6. Instruction manual

IMO *G3D-250 Instruction Manual

Idler cup and hydrostatic thrust designs
Hide thumbs
Table of Contents

Advertisement

Quick Links

INSTRUCTION MANUAL
AND
PARTS LIST
FOR
_G3D-187, 218, 250 and 312 SERIES PUMPS
(Idler Cup and Hydrostatic Thrust Designs)
WARNING
The Imo General Installation Operation, Maintenance, and Troubleshooting Manual,
(No. SRM00046), along with this manual as well as all other component manuals
supplied with these type units should be read thoroughly prior to pump installation,
start-up, operation, maintenance or troubleshooting.
Manual No. SRM00061
REV 08 (13-0376)
October, 2013
1

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the *G3D-250 and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for IMO *G3D-250

Summary of Contents for IMO *G3D-250

  • Page 1 (Idler Cup and Hydrostatic Thrust Designs) WARNING The Imo General Installation Operation, Maintenance, and Troubleshooting Manual, (No. SRM00046), along with this manual as well as all other component manuals supplied with these type units should be read thoroughly prior to pump installation, start-up, operation, maintenance or troubleshooting.

  • Page 2: Seal Chamber Priming

    IMPORTANT NOTE The importance of seal chamber priming cannot be overemphasized. Due to the prevalence of seal damage and leakage caused by not filling the seal chamber with liquid before putting a pump in service, this page is located at the beginning of this document. SEAL CHAMBER PRIMING Fill mechanical seal chamber with liquid to insure seal does not start dry.

  • Page 3: Table Of Contents

    G. Pump Disassembly and Reassembly (Pumps with seals) ........... 10 H. Mechanical Seal Information ..................17-23 Pump Disassembly and Reassembly (Packing Pumps) ..........24-26 J. Troubleshooting, Field and Factory Service and Parts ............26 K. Assembly Drawings ....................... 27-35 L. Imo Address and Phone Numbers ..................36...

  • Page 4: General Instructions, Introduction, Description Of Equipment

    B. INTRODUCTION This instruction manual covers series _G3D-187, 218, 250 and 312 Imo pumps. This series of pumps has been designed for use in hydraulic, lubricating, seal, distillate, residual, fuel and crude oil applications. The model and design construction of each pump can be identified by the designator code on the pump nameplate.

  • Page 5: Assembly Drawing List And Mechanical Seal Types

    Table 1 SERIES G3D TYPICAL PUMP ASSEMBLY DRAWINGS MECHANICAL SEAL PACKING PUMPS ROTOR SIZE 218 and 250 Vertical 218 218 and 250 FIGURE NO. Table 2 SERIES G3D PUMP SEAL TYPES ROTOR SIZES 187, 218, 250 and 312 PUMP SEAL PUMP SEAL PUMP...

  • Page 6: Pump Model Identification, Ordering Instructions

    D. PUMP MODEL IDENTIFICATION This instruction manual covers Imo Series G3D-275 pumps. The model of each pump is identified on pump nameplate. Refer to figure 1 and table 1 for instructional keys when using this manual. Figure 1. Definitions of Model Designators...

  • Page 7: F.2 Operating Limits

    Imo sales and service representatives are listed herein and in General Instruction Manual, CA-1. F. OPERATION F.1 LIQUID LIMITATIONS Never operate with thin liquids such as solvents or water. Pump is designed for liquids having general characteristics of oil. F.2 OPERATING LIMITS...

  • Page 8: Parts Lists

    G. PARTS LIST Table 5 LIST OF MATERIALS (FIGURES 18 THROUGH 22) ITEM KIT DESCRIPTION ITEM KIT PART DESCRIPTION Case Lockwasher (2) 002 XX Housing X Mechanical Seal Plug Inlet Head or Clamp Ring Capscrew or Bolt Spacer 004 XX Tube Nameplate Drive Screw * X O-ring (2)

  • Page 9: Table

    Table 6 LIST OF MATERIALS (FIGURES 23 AND 24) ITEM KIT DESCRIPTION ITEM KIT PART DESCRIPTION Case XX Thrust Plate XX Housing Spacer (2) Plug Bolt (2) Tube Lockwasher (2) X O-ring (2) Inlet Head X O-ring X O-ring Elbow (2) X Gasket Nipple (2) XX Inboard Cover...

  • Page 10: Pump Disassembly And Reassembly (Pumps With Seals)

    H. PUMP MAINTENANCE WARNING Failure to observe precautions while installing, inspecting and maintaining pump can cause injury to personnel from accidental handling of liquids that may harm skin or clothing, or fire hazard risks from flammable liquids, or injury from high pressure fluid jets.
  • Page 11 Close off suction and discharge piping to pump and disconnect piping. If applicable, remove tubing (042, Figure 20) with check value (039). (Must be reinstalled in original installed position.) Remove drain plugs and drain unit. Remove pump from driver, coupling and mounting bracket. Remove coupling hub and key (016). 1.
  • Page 12 Prior to assembly of pump, all parts should be cleaned and inspected for nicks and burrs. Replace all worn or damaged parts. Imo Pump recommends automatic replacement of gaskets, O-rings, mechanical seals and ball bearings when these parts are disturbed from their previously installed position.
  • Page 13 Table 3 TORQUE VALUES - MECHANICAL SEAL PUMPS PART ROTOR SIZE TORQUE VALVE PART ROTOR SIZE TORQUE VALVE 35 lbs. ft. (± 5 lbs. ft.) 18 lbs. ft. (± 2 lbs. ft.) 010 and 55 lbs. ft. (± 5 lbs. ft.) 20 lbs.
  • Page 14 14. Install key (016) and coupling hub on power rotor (011). 15. Install drain plugs if removed during disassembly. 16. If applicable, connect tubing (042, Figure 20) ensuring that check valve (039) is installed in original position 17. Connect pump to mounting bracket and coupling. Align pump with driver as described in CA-1 manual.
  • Page 15 Figures 2 through 10 Mechanical Types Figure 2. Type 2 Single Mechanical Seal Figure 3. Type 2 Single Spring Mechanical Seal Clamped or “J” Seat Type O-Ring Seat Type Figure 4. Type 8-1 Multi Spring Mechanical Seal Figure 5. Type 8-1 Multi Spring Mechanical Seal Clamped or “J”...
  • Page 16 Figure 6. Type 21 Single Mechanical Seal Figure. 7 Type 21 Single Spring Mechanical Seal Clamped or “J” Seat Type O-Ring Seat Type Figure 8. Type 8B3 Multi Spring Mechanical Figure 9. Type 8B3 Multi Spring Mechanical Seal O-Ring Seat Seal O-Ring Seat Type...

  • Page 17: Mechanical Seal Information

    Figure 10. Type BX Mechanical Seal Figures 11 through 17 Mechanical Seal Information Figure 11. Type 2, Clamped Seat (Rotor Size187) Type 8-1 and 21, Clamped Seat (187, 218, and 312) Flexbox Rotor Size...
  • Page 18 Figure 12. Type 2, 8-1 O-ring Seat (Rotor Size 250)
  • Page 19 Figure 13. Type 2 O-ring Seat (Rotor Size 187 and 218) Type 8-1 and 21, O-ring Seat (rotor Size 187 and 218), Sealot (Rotor Size 187), Type 8B3 (Rotor Size 187, 218, 312)
  • Page 20 Figure 14. Type 2, 81 and O-ring Seat (Rotor Size 250)
  • Page 21 Figure15. Type BX (Rotor Size 187 through 250)
  • Page 22 Figure16. Type 9B3 (Rotor Size 187)
  • Page 23 Figure 17. No Seal (Rotor Sizes 187 through 312...

  • Page 24: Pump Disassembly And Reassembly (Packing Pumps)

    NOTE: Prior to assembly of pump, all parts should be cleaned and inspected for nicks and burrs. Replace all worn or damaged parts. Imo Pump recommends automatic replacement of 0-rings, gasket, and packing when these parts are disturbed from their previously installed position. Refer to pump assembly drawings, Figures 23 and 24, and List of Material, Table 7, during pump assembly.
  • Page 25 Table 4 TORQUE VALUES - PACKING PUMPS PART ROTOR SIZE TORQUE VALUE PART ROTOR SIZE TORQUE VALUE 30 lbs. ft. (± 5 lbs. ft.) 35 lbs. ft. (± 5 lbs. ft.) 30 lbs. ft. (± 5 lbs. ft.) 55 lbs. ft. (± 5 lbs. ft.) 70 lbs.

  • Page 26: Troubleshooting, Field And Factory Service And Parts

    For assistance with troubleshooting see the General Instruction Manual, CA-1. J. FIELD AND FACTORY SERVICE AND PARTS Imo Pump maintains a staff of trained service personnel that can provide pump installation, pump start-up, maintenance/overhaul and troubleshooting supervision as well as installation and maintenance training.
  • Page 27 Note: Idler Cups (20) not required on some designs.
  • Page 28 Note: Idler Cups (20) not required on some designs.
  • Page 29 Note: Idler Cups (20) not required on some designs.
  • Page 30 Note: Idler Cups (20) not required on some designs.
  • Page 31 Note: Idler Cups (20) not required on some designs...
  • Page 32 Note: Idler Cups (20) not required on some designs.

  • Page 36: Imo Address And Phone Numbers

    CIRCOR Pumps North America LLC 1710 Airport Road PO Box 5020 Monroe, NC USA 28111.5020 Tel: +1.704.289.6511 Toll: +1.877.853.7867 Email: cc@colfaxfluidhandling.com Web: circorpt.com © 2018 CIRCOR International all rights reserved.

This manual is also suitable for:

*g3d-187*g3d-218*g3d-312

Table of Contents