Common problems and solutions of pipeline hydrostatic testing machine

Hydrostatic testing remains one of the most critical techniques for verifying pipeline integrity and safety before the system goes into service. By pressurizing pipes with water to a specified level, we mimic real operating conditions and check whether the pipeline and its joints hold up without leaks or failures. However, anyone who has worked with hydrostatic testing machines knows that things don’t always go smoothly. Below are some real-world issues that technicians and engineers often run into — with clear solutions you can apply on the ground.

1. Inconsistent or No Water Discharge from the Pump

Issue:
Sometimes the hydrostatic pump fails to deliver water into the pipeline, or it delivers an inconsistent flow.

Causes:
✔ Valve not fully opened
✔ Debris blocking inlet/outlet
✔ Air pockets inside pump chamber
✔ Incorrect motor direction or insufficient power
✔ Pump impeller wear or blockage

Solution: