Valve production is a complex and simple process, the production of ordinary valves such as gate valve, ball valve, globe valve, butterfly valve, check valve production cycle is generally three days, a good manufacturing valve must go through a variety of performance tests, including The most important test is pressure test. Pressure test is the test valve can withstand the pressure value is consistent with the requirements of the production requirements, the general pressure test valve must comply with the following principles and precautions:
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