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About product and suppliers:
        Alibaba.com offers 1,279 4 inch butterfly valve products. About 96% of these are valves, 1% are pipe fittings. 

A wide variety of 4 inch butterfly valve options are available to you, such as butterfly, gate, and ball. You can also choose from manual, hydraulic, and solenoid. As well as from casting, stainless steel, and plastic. And whether 4 inch butterfly valve is normal temperature, medium temperature, or low temperature. 

There are 1,284 4 inch butterfly valve suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Thailand, and Egypt, which supply 99%, 1%, and 1% of 4 inch butterfly valve respectively. 

 inch butterfly valve products are most popular in North America, Southeast Asia, and Domestic Market. 

You can ensure product safety by selecting from certified suppliers, including 627 with ISO9001, 117 with Other, and 98 with ISO14001 certification.