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Circor IMO E12L Series Product Service Manual

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PRODUCT SERVICE MANUAL
FOR
E12L SERIES PUMPS
WARNING
The Imo General Installation, Operation, Maintenance, and Troubleshooting
Manual, (No. SRM00046), along with this manual and 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. SRM00055
Rev. 06 (20-0051)
February 2020

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Summary of Contents for Circor IMO E12L Series

  • Page 1     PRODUCT SERVICE MANUAL E12L SERIES PUMPS WARNING The Imo General Installation, Operation, Maintenance, and Troubleshooting Manual, (No. SRM00046), along with this manual and 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 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  ...

  • Page 3: Table Of Contents

    READ THIS ENTIRE PAGE BEFORE PROCEEDING FOR SAFETY OF PERSONNEL AND TO PREVENT DAMAGE TO EQUIPMENT, THE FOLLOWING NOMENCLATURE HAS BEEN USED IN THIS MANUAL: DANGER Failure to observe precautions noted in this box can result in severe bodily injury or loss of life. WARNING Failure to observe precautions noted in this box can cause injury to personnel by accidental contact with equipment or liquids.

  • Page 4: General Nstructions

    A. GENERAL INSTRUCTIONS Instructions found herein cover disassembly, assembly and parts identification of E12L series pumps. NOTE: Individual contracts may have specific provisions that vary from this manual. Should any questions arise which may not be answered by these instructions, refer to Imo General Installation Operation, Maintenance, and Troubleshooting Manual,SRM00046, provided with your order.

  • Page 5: Pump Model Identification

    D. PUMP MOEL IDENTIFICATION This instruction manual covers the Imo Series E12L pumps with rotor sizes 118 through 200. The model of each pump is identified on the pump nameplate. Refer to Figure 1 and Table 1 for instructional keys when using this manual. Table 1 –...

  • Page 6: Operation

    OPERATION LIQUID LIMITATIONS Never operate with thin liquids such as solvents or water. The pump is designed for liquids having the general characteristics of oil. OPERATING LIMITS CAUTION ATTENTION Operating conditions, such as speed, fluid viscosity, temperature inlet pressure, discharge pressure, filtration, duty cycle, drive type, mounting, etc., are interrelated.

  • Page 7: Parts List And Torque Tables

    G. PARTS LIST AND TORQUE TABLES Table 3 – Pump Parts List QTY DESCRIPTION QTY DESCRIPTION Case Bolt(s) Eyebolt(s) Bearing Nut Housing Bearing Washer Housing Idler Rotor(s) Shim or Spacer Outboard Cover Back-up Rings(s) Plug O-ring(s) Plate, Sub-Assy(s) Vent Pin(s) Cap Screw(s) Stop Pin Cap Screw(s)

  • Page 8: Pump Maintenance

    H. PUMP MAINTENANCE WARNING Failure to observe precautions while installing, inspecting, and maintaining the 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. DANGER Before working on equipment, make sure all power to the equipment is disconnected and locked-out.
  • Page 9 H. 5 Remove Outboard Cover (Suction Side) – See Figures 3, 4 and 5 Remove cap screws (40) with Dyna seals (41) from outboard cover (36). Pull out- board cover slightly away from case (1) to release oil from inlet chamber of pump. Provisions must be made for oil spillage.
  • Page 10 Figure 2 – Mechanical Seal (24)               1. Seat 2. O-Ring 3. Rotating Assembly 3A. Bellows Assembly 3B. Bellows Assembly O-Ring 3C. Set Screw       H. 9 Remove and Disassemble Inboard Cover (Discharge side) Remove cap screws (18) and (washers (60) 118 rotor size pump only) from inboard cover (12).
  • Page 11 I. 1 PUMP ASSEMBLY NOTE: Prior to assembly, all parts should be cleaned and inspected for nicks and burrs. Replace all worn or damaged parts. Imo Pump recommends automatic replacement of mechanical seal (24), ball bearing (28) and O-rings (7, 10, 13, 14, 19 and 70) when these parts have been disturbed from their previously installed positions.
  • Page 12 CAUTION ATTENTION Machining or grinding capabilities maybe required to ensure spacer (5) meets proper fit- up dimensions. If spacer (5) is not properly fitted, pump damage or failure may occur. Machine spacer to required thickness as determined above – OR – build-up layers of shim material to obtain the required thickness.

  • Page 13: Troubleshooting

    NOTE: Inlet head (21) may be rotated in 90 increments from position shown in Figures 3, 4 and 5. I.7 Install Outboard Cover Install O-rings (14 & 19) in grooves of outboard cover (36). Install plate sub-assembly (38) on outboard cover (36) using cap screws (43) and lockwashers (42). Install Dyna seals (41) on cap screws (40) using a thin coat of LOCTITE Gasket Eliminator 504.
  • Page 14 FIGURE 3 – PUMP ASSEMBLY – ROTOR SIZE 118...
  • Page 15 FIGURE 4 – PUMP ASSEMBLY – ROTOR SIZES 137 & 156...
  • Page 16 FIGURE 5 – PUMP ASSEMBLY – ROTOR SIZES 187 & 200...
  • Page 17   CIRCOR 1710 Airport Road PO Box 5020 Monroe, NC USA 28111.5020 Tel: +1. 877.853.7867 Email: cc@circor.com Web: www.circorpt.com                     © 2020 CIRCOR Pumps North America, LLC. All rights reserved.  ...

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