Is a G-type all-stainless steel screw pump leaking?

2025-10-13 11:19:56

To determine if a G-Type All-Stainless Steel Screw Pump is leaking, Longjie Pump Industry's editor will teach you several methods:

1. Observation

Direct observation: While the screw pump is operating, directly observe the pump body, joints, seals, and other parts to see if there is any liquid seepage. This is a simpler and more direct method and is suitable for obvious leaks.

Light-assisted observation: In a well-lit environment, use a flashlight or other light source to illuminate the suspected leaking area and observe if a beam of light is formed by the liquid. This can help determine if there is a minor leak.

2. Pressure test

Pressure test: Perform a pressure test on the screw pump by gradually increasing the system pressure and observing the pressure gauge reading. If the pressure does not stabilize or drops rapidly, it may indicate a leak.

Bubble test: Immerse the suspected leaking area in clean water and observe if bubbles are present. If bubbles are present, it indicates a leak. This method is suitable for detecting minor leaks.

3. Auscultation

Auditory test: While the screw pump is operating, use a stethoscope or other instrument to listen to the suspected leaking area and listen for any unusual sounds of liquid flowing or leaking. This method requires experience and judgment.

4. Instrumental Inspection Method

Ultrasonic Leak Detector: Use an ultrasonic leak detector to conduct a comprehensive inspection of the screw pump. This instrument can detect subtle leak sounds and convert them into visual signals, helping to accurately determine the leak's location.

Infrared Thermal Imager: After the screw pump has been running for a period of time, scan the pump body with an infrared thermal imager. If the temperature in one area is significantly higher than in another, this may indicate frictional heating caused by a leak.

5. Precautions

Before conducting the inspection, ensure that the screw pump is stopped and the power supply is disconnected for safety reasons.

Be careful and patient during the inspection to avoid missing any possible leaks.

Any leaks discovered should be promptly addressed and repaired to prevent escalation.