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Flow ESL INTENSIFIER - User Manual

Flow ESL INTENSIFIER
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ESL INTENSIFIER
M-310 | REV. G | JANUARY 2009

Questions and Answers

  • D
    Douglas HessSep 8, 2025
    How to fix a sticky outlet check valve poppet in Flow ESL INTENSIFIER Water Pump?
    • R
      Rebecca JonesSep 8, 2025
      If you have a sticky outlet check valve poppet in your Flow Water Pump: 1. Remove the end cap. 2. Relap the check valve poppet and the insert; reinstall.
  • A
    Alexandra ReedSep 7, 2025
    What to do if there are foreign particles trapped between check valve and seat in my Flow ESL INTENSIFIER?
    • C
      Christopher WolfeSep 7, 2025
      If you find foreign particles trapped between the check valve and seat in your Flow Water Pump: 1. Remove the end cap(s) and eliminate the sources of contamination to prevent the problem from recurring. 2. Examine the check valves and remove any foreign material. Relap if necessary. 3. Clean all parts and reassemble.
  • S
    sarahaguirreAug 22, 2025
    What to do if there is low inlet water pressure to the Flow ESL INTENSIFIER intensifier?
    • S
      Shaun YoungAug 22, 2025
      If you notice low inlet water pressure to your Flow Water Pump intensifier, ensure the inlet water pressure output is above the required minimum for your intensifier pump. Also, replace filters in the filtration system, making sure they are replaced in the same order they were removed.
  • B
    Barbara StephensSep 4, 2025
    How to fix damaged low-pressure water seal o-rings on the check valve body of a Flow Water Pump?
    • M
      mark17Sep 4, 2025
      If you discover damaged low-pressure water seal o-rings on the check valve body of your Flow Water Pump, replace the water seal o-rings. Take care not to pinch the o-ring seals when installing the check valve housing.
  • K
    Kimberly SmithSep 3, 2025
    What causes stress fatigue in a Flow Water Pump?
    • W
      wsullivanSep 3, 2025
      If you are experiencing stress fatigue in your Flow Water Pump, replace the HP water cylinder. The cylinder has a limited fatigue life and will require periodic replacement depending on the application. Premature failure is primarily attributed to scratches in the bore. Replace all water seals whenever replacing the high-pressure water cylinder. Record service intervals for future reference.
  • A
    Angela ByrdSep 1, 2025
    How to fix worn end bell oil seal in Flow ESL INTENSIFIER?
    • R
      Richard ShawSep 1, 2025
      If you have worn end bell oil seals in your Flow Water Pump, replace them. It's recommended to replace all oil seals at the same time.
  • D
    Donald CainAug 31, 2025
    What to do if there is a fractured check valve body in my Flow ESL INTENSIFIER Water Pump?
    • S
      Samuel BartonAug 31, 2025
      If the check valve body is fractured in your Flow Water Pump, inspect it for fractures. Replace the check valve body if required and replace all water seals.
  • T
    Tracy HughesAug 30, 2025
    How to fix a worn high-pressure water plunger in a Flow ESL INTENSIFIER Water Pump?
    • L
      Lisa SmithAug 30, 2025
      If you have a worn high-pressure water plunger in your Flow Water Pump: 1. Inspect the plunger diameter. The diametrical clearance between the plunger and a new backup ring must be less than 0.002 inch (0.05 mm). Replace the plunger if it is scratched, pitted, or below tolerance. 2. Replace the water seals and seal backup ring.
  • S
    Scott MataAug 29, 2025
    What to do if there is a fractured high-pressure water cylinder at the end bell side in my Flow ESL INTENSIFIER?
    • M
      michelleodomAug 29, 2025
      If you find a fractured high-pressure water cylinder at the end bell side of your Flow Water Pump, replace the water cylinder and seals. Be careful not to scratch the high-pressure water cylinder during seal insertion.
  • C
    cindyperezAug 27, 2025
    What to do if intensifier inlet passages are clogged by debris or corrosion in my Flow ESL INTENSIFIER Water Pump?
    • T
      Thomas BrownAug 27, 2025
      If you observe intensifier inlet passages clogged by debris or corrosion in your Flow Water Pump, inspect the filtered water inlet lines. Remove the end cap and inspect, then remove any foreign material clogging the inlet passages. Inspect the check valve as well.

Summary

Introduction

Safety

Review safety precautions before installing, operating, or servicing equipment.

Warnings, Cautions, and Notes

Understand warnings, cautions, and notes for safe and efficient operation.

Related Documents

List of manuals shipped with the system for related components.

ESL Intensifier Description

Specifications

Technical specifications including diameter, length, weight, and output pressures.

Hydraulic Oil

Details on recommended hydraulic oil viscosity and specific brands.

Operating Principles

Overview of the intensifier's hydraulic, water delivery, and control systems.

Maintenance and Service

Periodic Maintenance

Guidance on regular preventive maintenance for maximum life and safety.

Maintenance Tips

Practical advice for minimizing downtime and ensuring efficient upkeep.

Maintenance Precautions

Essential precautions for protecting parts and ensuring proper assembly.

Torque Specifications

Table of torque values for high-pressure gland nuts.

Troubleshooting

Intensifier Weep Hole Identification

Understanding weep hole leaks as clues to component conditions.

Check Valve Outlet Body Leakage

Causes of leakage from the check valve outlet body.

Main Check Valve Body Leakage

Causes of leakage from the main check valve body.

End Cap Leakage

Common causes of weep hole leakage at the end cap.

End Bell Leakage

Causes of hydraulic oil and water leakage from the end bell weep hole.

Troubleshooting Guide

Using the Troubleshooting Guide

Steps for effectively using the troubleshooting table to diagnose problems.

Intensifier Strokes Unevenly

Causes and solutions for uneven intensifier strokes.

Intensifier Knocks Severely

Causes and solutions for severe knocking sounds from the intensifier.

Oil Leakage from End Bell Weep Hole

Troubleshooting oil leaks from the end bell weep hole.

Oil Leaking from Manifold;End Bell Interface

Diagnosing and fixing oil leaks at the manifold/end bell interface.

Oil Leaking from Manifold;Shift Valve Interface

Addressing oil leaks at the manifold/shift valve interface.

Oil Leaking from Shift Valve;Pilot Valve Interface

Troubleshooting oil leaks at the shift valve/pilot valve interface.

Water Leaking from End Bell Weep Hole

Causes and solutions for water leaks from the end bell weep hole.

Water Leaking from End Cap Weep Hole

Troubleshooting water leaks from the end cap weep hole.

Short High-Pressure Water Seal Life

Diagnosing and resolving premature high-pressure water seal failure.

Water Leaking from Check Valve Weep Hole

Causes and solutions for water leaks from the check valve weep hole.

Fractured High-Pressure Water Cylinder

Addressing fractures in the high-pressure water cylinder.

Fractured Check Valve Body

Troubleshooting fractured check valve bodies.

Service Procedures

Intensifier Service Notes

Key tips from users to improve repair costs, time, and component life.

Major Parts of the Intensifier

High-Pressure Cylinder Assembly

Exploded view and labeling of the high-pressure cylinder components.

Check Valve Assembly

Exploded view and labeling of the check valve assembly components.

High-Pressure Water Cylinder and Seals

Service Steps

Step-by-step instructions for servicing the high-pressure water cylinder and seals.

High-Pressure Water Cylinder and Seals: Tools and Assembly

High-Pressure Seal Tool Kit

Illustration and components of the high-pressure seal tool kit.

High-Pressure Cylinder Assembly

Exploded view of the high-pressure cylinder and its seal components.

Reassembling the Intensifier

End Cap and Check Valve

Service Steps

Step-by-step instructions for servicing the end cap and check valve.

Lapping the Sealing Surfaces

Lapping the Outlet Poppet, Insert, and Check Valve Outlet Passage

Techniques for lapping outlet poppet, insert, and passage.

Lapping the Outlet Insert

Procedure for hand-lapping the outlet insert.

Lapping the Outlet Poppet

Recommended method for lapping the outlet poppet for performance.

Lapping the Inlet Poppet and Main Body

Lapping the Inlet Poppet

Method for hand-lapping the inlet poppet.

Lapping the Check Valve Main Body

Procedure for hand-lapping the check valve main body.

Hydraulic Oil Cylinder, Piston, Plunger, and End Bell

Service Steps

Step-by-step instructions for servicing the hydraulic oil cylinder, piston, plunger, and end bell.

Hydraulic Oil Cylinder, Piston, Plunger, and End Bell: Inspection

Inspect the Parts

Instructions for inspecting low-pressure cylinder, end bells, and related parts.

Parts List Information

Ordering Parts

Refer to manual MS-2266 for information on ordering replacement parts.

Customer Service

Contact information and hours for Flow's Customer Service.

Technical Service

Contact information and hours for Flow's Technical Service.

Top Assemblies

Sub-assemblies

Check Valve Assembly

Part number breakdown and illustration for the check valve assembly.

Sub-assemblies: Piston Assemblies

60 K Piston Assembly

Part breakdown for the 60K piston assembly.

40 K Piston Assembly

Part breakdown for the 40K piston assembly.

Manifold Assembly, Mechanical Shift

Manifold Assembly, Electric Shift

Kits

Check Valve Kits

List of kits for check valve maintenance, including lapping kits.

Tool Kits

List of available tool kits for seal replacement.

High-Pressure Seal Kits

Low-Pressure Seal Kits

Electric Shift Low-Pressure Kits

Electric Shift Low-Pressure Seal Kit

Flow ESL INTENSIFIER Specifications

General IconGeneral
BrandFlow
ModelESL INTENSIFIER
CategoryWater Pump
LanguageEnglish

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