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Corken Coro-Flo FF150 - User Manual

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Installation, Operation
& Maintenance Manual
Regenerative Turbine Pumps
for LPG, NH
3
, and Many Other Liquefied Gases and Thin Liquids
All Models 060, 075, and 150
ORIGINAL INSTRUCTIONS IF102H
Direct Mount
ASME Class 300 RF (ANSI) Flange (DLF) and DIN Flange (DLD)
Frame Mount
ASME Class 300 RF (ANSI) Flange (FF) and DIN Flange (FD)
Warning: (1) Periodic inspection and maintenance of Corken products is essential. (2) Inspection, maintenance and installation of
Corken products must be made only by experienced, trained and qualified personnel. (3) Maintenance, use and installation of Corken
products must comply with Corken instructions, applicable laws and safety standards. (4) Transfer of toxic, dangerous, flammable or
explosive substances using Corken products is at user’s risk and equipment should be operated only by qualified personnel according
to applicable laws and safety standards.
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of maintenance videos.
Solutions beyond products...

Table of Contents

Questions and Answers

  • S
    Sandra DunnAug 16, 2025
    What to do if my Corken Water Pump runs but has no flow?
    • S
      Stacy BowmanAug 16, 2025
      If your Corken Water Pump is running but there's no flow, start by checking that all valves are in the open position. An excess flow valve might be slugged or closed; in that case, stop the pump until the excess flow valve opens, and if the problem persists, install a new or larger capacity excess flow valve. Ensure the electric motor's rotation is correct and change it if necessary. Also, a suction pipe that is too small or restricted could be the cause, indicated by the pump’s inlet pressure dropping when the pump is started; remove any restrictions and/or increase the pipe size.
  • U
    udaviesAug 19, 2025
    Why does the electric motor of my Corken Coro-Flo FF150 Water Pump get hot?
    • T
      Tina DavidsonAug 20, 2025
      If the electric motor of your Corken Water Pump gets hot or the overload protection kicks out, it could be due to high differential pressure. Check the motor’s full load amperage and adjust the bypass valve setting to a lower position. Low line voltage could also be the cause; check the line voltage when in operation and ensure the motor is wired for the proper voltage, referring to the electric motor’s nameplate. The starter overload or heater might be too small, so check the motor load with an ammeter and confirm the heater size with the starter’s manufacturer. Additionally, a shorted motor could be the issue. To prevent moisture buildup in TEFC and explosion-proof motors, run the motor at least once a week until it gets hot enough to evaporate moisture.
  • K
    kelly10Aug 25, 2025
    How to unlock a locked Corken Coro-Flo FF150 Water Pump?
    • K
      ksmithAug 25, 2025
      If your Corken Water Pump will not turn or is locked, check for foreign matter inside the pump and clean it out, inspecting the strainer screen as well. A seized bearing could also be the problem; replace the bearings and grease them every three months using a low temperature ball bearing grease with a minimum rating of at least -25°F to 250°F. The lubricant used by the factory is Mystik JT-6 Low Temperature Extreme Grease. Moisture in the pump can also cause this; thaw and carefully break it loose, and check with the product supplier if the product contains water and properly remove the moisture from the product.
  • W
    Wendy EvansAug 27, 2025
    Why is my Corken Coro-Flo FF150 so noisy?
    • J
      Jennifer SmithAug 27, 2025
      If your Corken Water Pump is experiencing noise or vibration, it could be due to cavitation from poor suction conditions. Make sure all valves are open, check for restrictions on the suction piping, and clean the strainer screen. Misalignment of the coupling can also cause this, so align the coupling. A loose coupling or coupling guard can also be the culprit, so tighten the coupling and its guard. If the coupling rubber insert is worn or damaged, replace it and check the coupling alignment. Finally, worn bearings can cause noise or vibration, so replace them if necessary and lubricate every three months.
  • H
    Holly RomeroAug 31, 2025
    What causes continued noise or vibration in a Corken Water Pump?
    • M
      Melvin WhiteAug 31, 2025
      If your Corken Water Pump is experiencing noise or vibration (continued), it could be due to a defective or wrong size bypass valve. Confirm the size of the bypass valve required for the application and inspect, repair, or replace the valve. Loose anchor bolts can also cause this, so tighten all the pump’s anchor bolts.
  • T
    Tammy TurnerSep 3, 2025
    Why won't my Corken Water Pump build pressure?
    • N
      Nathan MooreSep 4, 2025
      If your Corken Water Pump will not build pressure, it could be due to poor suction conditions. Check the storage tank excess flow valve and clean the filter screen. The suction pipe might be too small or restricted, so remove any restrictions and/or increase the pipe size. A bypass valve set too low could also be the cause; set the valve for higher pressure. Too much impeller clearance may also be the reason; conduct a performance test on the pump.
  • L
    Lauren LewisSep 7, 2025
    How to fix leaks in a Corken Water Pump?
    • C
      cooleyjennaSep 8, 2025
      If your Corken Water Pump is leaking, it could be due to failed O-rings or the mechanical seal assembly. Inspect and replace the mechanical seal and O-rings if needed.
  • J
    Justin RobinsonNov 11, 2025
    Why is the capacity of my Corken Coro-Flo FF150 Water Pump so low?
    • J
      Jeffrey PatelNov 11, 2025
      If your Corken Water Pump experiences low capacity, several factors could be at play. It could be due to the pump speed being too low because of the wrong electric motor, so check the RPM of the electric motor. A clogged strainer can also cause this issue, so you should clean the strainer screen. High differential pressure could be the culprit; in this case, remove any restrictions in the discharge piping/hose or increase their sizes. Other potential causes include a bypass valve stuck open or set too low (readjust, repair, or replace the bypass valve), a worn impeller (replace the impeller), or a suction pipe that is too small or restricted (remove restrictions and/or increase the pipe size; this is indicated by the pump’s inlet pressure dropping when the pump is started). Vapor lock can ...

Summary

Corken One Year Warranty

EU Machinery Directive Notes

Contacting the Factory

Principles of the Coro-Flo Pump

Exclusive Features of the Coro-Flo Pump

Chapter 1-Installation

1.1 Location

Details optimal placement for pump installation.

1.2 Inlet Piping Requirements

Specifies requirements for pump inlet piping and components.

1.3 Outlet Piping Requirements

Specifies requirements for pump outlet piping and components.

1.4 Bypass System Requirements

Details the necessary components and configuration for the bypass system.

1.5 Pump Foundation for Frame Mounted Models

Provides guidance on constructing a stable foundation for frame-mounted pumps.

1.6 Level Base

Instructions to ensure the pump mounting base is perfectly level.

1.7 Coupling Alignment - F-Models

Procedure for precise alignment of pump and driver couplings.

1.8 Driver Installation

Guidance on correct wiring and installation of the electric motor driver.

1.9 Wire Sizing Chart

Chart for selecting appropriate wire sizes based on motor HP and distance.

Chapter 2-Operation

2.1 Filling New Cylinders and Tanks

Procedure for filling new containers, emphasizing air purging.

2.2 Pumping From Underground Tanks

Challenges and design criteria for pumping from underground tanks.

Chapter 3-Preventative Maintenance

Purpose

Explains the objective of a preventive maintenance program for efficiency.

Scope

Defines the extent and recommendations of the maintenance schedule.

Chapter 4-Repair Service

Impeller Inspection and Replacement

Procedure for inspecting and replacing the pump impeller for performance restoration.

Mechanical Seal Replacement

Procedure for replacing the pump's mechanical seal to ensure sealing integrity.

Chapter 5-Seal Replacement Instructions

Cleanliness

Emphasizes the critical importance of cleanliness for seal longevity and performance.

Workmanship

Highlights the need for precision and care during all seal replacement steps.

Appendix A-Model Number Identification Code and Available Options

Appendix B-Material and Mechanical Specifications

Equipment Type and Options

Lists pump types, mounting options, and flange availability.

Features and Benefits

Highlights key advantages and design aspects of Coro-Flo pumps.

Operating Specifications

Details essential operating parameters like pressure, flow, and temperature.

Material Specifications

Lists materials used for pump components and their construction details.

Appendix C-Performance Curves

Appendix D-Outline Dimensions

Frame Mount Dimensions

Provides outline dimensions for frame mount pump models.

Direct Mount Dimensions

Provides outline dimensions for direct mount pump models.

Appendix E-Parts Details

Frame Mount Parts Details

Lists and illustrates parts for frame mount pump models for identification.

Direct Mount Parts Details

Lists and illustrates parts for direct mount pump models for identification.

Appendix F-Troubleshooting Guide

Troubleshooting Common Pump Issues

Addresses common pump problems like low capacity, no flow, or locking.

Troubleshooting Motor and Leak Issues

Addresses motor overheating, overload protection, and leaks.

Appendix G-Extended Storage Procedures

Appendix H-Aboveground Installation and Piping Instructions

Inlet Piping and Reducer Guidelines

Best practices for inlet piping size and eccentric reducer usage.

Bypass Line Installation

Guidance on proper installation of bypass lines to prevent issues.

Pump Location and Piping Layout

Recommendations for pump placement relative to the tank and pipe runs.

Vapor Handling and Back Check Valve Use

Instructions on vapor elimination and back check valve installation.

Appendix H-Underground Installation and Piping Instructions

Appendix H-Underground Installation and Piping Instructions Utilizing a Submersible Manifold

Corken Coro-Flo FF150 Specifications

General IconGeneral
ModelFF150
CategoryWater Pump
TypeRegenerative Turbine Pump
Maximum Working Pressure400 PSI
Power SourceElectric

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