Table of Contents
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Installation, Operation
& Maintenance Manual
Model PT20
Warning: (1) Periodic inspection and maintenance of Liquid Controls Group products is essential. (2) Inspection, maintenance and
installation of Liquid Controls Group products must be made only by experienced, trained and qualified personnel. (3) Maintenance,
use and installation of Liquid Controls Group products must comply with Liquid Controls Group instructions, applicable laws and safety
standards (such as NFPA Pamphlet 58 for LP-Gas and ANSI K61.1-1972 for Anhydrous Ammonia). (4) Transfer of toxic, dangerous,
flammable or explosive substances using Liquid Controls Group products is at user's risk and equipment should be operated only by
qualified personnel according to applicable laws and safety standards.
LIQUID CONTROLS GROUP
PT-Series Petroleum Pumps
For Refined Petroleum Products and Industrial Solvents
Model PT30
Model PT25 with optional air
operated valve (AOV) and strainer
ID108F
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Table of Contents
Related Manuals for Liquid Controls PT20
Summarization of Contents
Introduction and Safety Information
Warnings and Important Notes
General safety warnings, EU directive notes, and installation compliance.
Limited Warranty
Details of the one-year limited warranty for Liquid Controls Group products.
Contacting the Factory
Information on how and when to contact the factory for support.
Pump Principles and Features
Principles of PT-Series Pumps
Explanation of the rotary positive displacement sliding vane pump mechanism.
Exclusive Features of PT-Series Pumps
Highlights key design benefits and advantages of the PT-Series pumps.
Installation Procedures
PT-Series Truck Pump Installation
Steps for mechanically installing the PT-Series pump on a truck.
PTO Drive System Requirements
Guidelines for selecting and installing power take-off drive systems for optimal performance.
Hydraulic Drive Installation
Instructions for installing hydraulic motor adapters and drive systems.
PT-Series Stationary Pump Installation
Procedures for installing PT-Series pumps in stationary applications.
Driver Installation
Guidance on installing electric motors or engines for stationary pumps.
Operation and Adjustment
Truck Pump Operation
Initial steps for operating PT-Series truck pumps, including pressure checks.
Pump Rotation and Drive Alignment
Setting pump rotation direction and ensuring proper drive shaft and coupling alignment.
Stationary Pump Operation and AOV Assembly
Operating stationary pumps and assembling the Air Operated Valve (AOV).
Air Operated Valve (AOV) Adjustment
Procedures for adjusting the Air Operated Valve for flow control.
Maintenance and Repair
Maintenance Schedule and Lubrication
Routine maintenance tasks and bearing lubrication procedures for PT-Series pumps.
Pump Disassembly and Assembly
Detailed instructions for disassembling and reassembling PT-Series pumps.
Locknut Installation
Correct procedure for installing and adjusting bearing locknuts to prevent wear.
Vane and Bypass Valve Servicing
Instructions for replacing vanes and assembling bypass valves.
Technical Data and Troubleshooting
Repair Kits for PT-Series Pumps
Lists part numbers and quantities for PT-Series pump repair kits.
Model Number Identification Codes
Explains how to interpret model numbers and identify options.
Technical Specifications
Details on operating parameters, fluids, and material specifications for PT-Series pumps.
PT/PTH20 & PT/PTH25 Performance Curves
Graphical data showing capacity and horsepower for PT20 and PT25 models.
PT/PTH30 Performance Curves
Graphical data showing capacity and horsepower for the PT30 model.
PT20 Outline Dimensions
Visual representation of the PT20 pump with key measurements.
PT25 Outline Dimensions
Visual representation of the PT25 pump with key measurements.
PT30 Outline Dimensions
Visual representation of the PT30 pump with key measurements.
AOV and Strainer Outline Dimensions
Visual representation of AOV and strainer assemblies with measurements.
Hydraulic Drive Option Dimensions
Visual representation of hydraulic drive options with measurements.
Troubleshooting Guide
Common pump problems, their causes, and recommended solutions.
Flush and Storage Instructions
Procedures for flushing and storing PT-Series pumps when removed from service.
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