What Are The Industrial Valve Testing Methods?

Sanitary Valve leakage rate detection is a key quality assessment link, which aims to verify whether the valve can maintain good sealing under the specified pressure, avoid leakage problems in actual working conditions, and cause safety accidents or economic losses. So do you know what are the industrial valve detection methods?

Industrial valve detection method:
Air tightness test
Helium mass spectrometry leak detection method: By filling the valve with a mixed gas containing helium, and then using an external helium mass spectrometer to detect the concentration change of helium in the surrounding air, it is judged whether the valve has a leak point. This method is very suitable for the detection of extremely small leaks.

Vacuum decay test: Place the valve in a vacuum chamber, monitor the pressure recovery after vacuuming, and if the pressure increases, it means there is a leak.

Pressure test
This is one of the common leak detection methods, which is divided into hydraulic test and air pressure test:

Hydraulic test: The valve is filled with liquid (usually clean water), pressurized to a multiple of the working pressure, and maintained for a period of time to observe whether there is liquid leakage. This is an intuitive and sensitive method, especially suitable for detecting static seals.

Air pressure test: Use inert gas (such as nitrogen) to pressurize, apply soapy water or other leak detection agents to the valve housing and connection parts, and observe whether bubbles are generated to determine whether there is a small leak.
Leakage rate detection of industrial valves is a comprehensive engineering task. Professionals must use a variety of technologies and tools and strictly implement standardized procedures to ensure the accuracy of the test results.