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About product and suppliers:
        Alibaba.com offers 156,864 air valve products. About 26% of these are valves, 4% are pneumatic parts. 

A wide variety of air valve options are available to you, such as control, pressure reducing, and safety. You can also choose from stainless steel, plastic, and brass. As well as from hydraulic, manual, and solenoid. And whether air valve is normal temperature, medium temperature, or low temperature. 

There are 155,823 air valve suppliers, mainly located in Asia. The top supplying countries or regions are China, India, and Taiwan, China, which supply 98%, 1%, and 1% of air valve respectively. 

Air valve products are most popular in North America, Domestic Market, and South America. 

You can ensure product safety by selecting from certified suppliers, including 56,328 with ISO9001, 17,263 with Other, and 9,097 with ISO14001 certification.