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3252 air and vacuum relief valve products are offered for sale by suppliers on Alibaba.com, of which other valves accounts for 28%, control valves accounts for 14%, and safety valves accounts for 8%. A wide variety of air and vacuum relief valve options are available to you, such as normal temperature, medium temperature and high temperature.You can also choose from stainless steel, alloy and aluminum alloy air and vacuum relief valve,as well as from black, white, and silver air and vacuum relief valve,And whether air and vacuum relief valve is air vent, {2}, or {3}.