How to test a good pneumatic butterfly valve

Release time： 2019-03-15

Pneumatic butterfly valve in the pipeline industry is familiar with a device system, how the quality of the product determines the quality of the project, so good quality pneumatic valve meets which requirements, performance when how to test it?
Manufacturers in the production of engineering required specifications and models of valves, first of all, the product performance to authoritative testing to ensure product quality.
Product quality testing:
Valve flow resistance coefficient detection: valve to go in the pipeline water transmission. Valve opening and closing torque only valves in the normal operating pressure state, to ensure that the number of normal valve opening and closing times, close tight and continuity.
Detection before leaving the factory:
Internal pressure testing should be carried out in the pneumatic valve open running state, test the valve body can withstand from the valve working pressure 2 times greater. In the valve closed under the state of operation can withstand from both sides of the 1.1 times the value of the work pressure, to ensure that the valve sealing should be good without leakage.

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