593 pn40 gate valve products are offered for sale by suppliers on Alibaba.com, of which gate valves accounts for 75%, check valves accounts for 3%, and valves(old) accounts for 2%.
A wide variety of pn40 gate valve options are available to you, such as normal temperature, medium temperature and high temperature.You can also choose from stainless steel, carbon steel pn40 gate valve,as well as from black, white, and red pn40 gate valve,And whether pn40 gate valve is screw, {2}, or {3}.