195 double union gate valve products are offered for sale by suppliers on Alibaba.com, of which gate valves accounts for 25%, other valves accounts for 3%, and control valves accounts for 3%.
A wide variety of double union gate valve options are available to you, such as normal temperature, low temperature.You can also choose from stainless steel, carbon steel double union gate valve,as well as from black, white, and yellow double union gate valve,