High-pressure internal gear pumps are widely used as core oil supply units in hydraulic, lubrication and cooling systems.
With stable flow output, low pulsation and reliable high-pressure performance, they support continuous operation in various industrial applications.

Their internal gear structure ensures efficient oil transfer, reduced noise and improved durability, making them suitable for both standard and heavy-duty working conditions.

Technical Specifications

Installation Guidelines

Proper installation ensures stable operation and long service life.

Install the pump in a horizontal position and align inlet and outlet with system piping

Connect the inlet to the oil tank or supply source and the outlet to the hydraulic system or load equipment

Ensure the drive motor and coupling are properly aligned and securely connected

For flange connections, ensure sealing integrity and tighten bolts according to specified torque

Operation Procedure

Before starting, conduct a full inspection

Check all piping connections and ensure no leakage

Confirm oil type, viscosity and level meet requirements

Verify motor rotation direction matches pump requirements

Start the pump and observe operation

Ensure smooth running without abnormal noise, vibration or overheating

Monitor system parameters

Check pressure and flow stability during operation

Ensure pump temperature remains within safe limits (typically below 80°C)

Maintenance and Service

Regular maintenance is essential for reliable operation

Replace hydraulic oil every 3000 operating hours or every six months

Clean oil tank and filters to prevent contamination

Inspect seals regularly and replace if leakage occurs

Check lubrication system to ensure uninterrupted oil flow

Inspect bearings periodically to maintain smooth rotation

Troubleshooting Guide

Operating Precautions

Do not run the pump without load for extended periods

Always maintain proper oil level and oil quality

Avoid dry running or low-pressure operation

Ensure the inlet is fully immersed in oil to prevent air intake

Summary

A high-pressure internal gear pump provides stable oil supply, reliable pressure output and efficient operation across hydraulic and lubrication systems.

Correct installation, proper operation and regular maintenance help improve system efficiency, extend equipment life and reduce unexpected downtime.