105 drain backflow valve products are offered for sale by suppliers on Alibaba.com, of which drains accounts for 27%, check valves accounts for 18%, and control valves accounts for 6%.
A wide variety of drain backflow valve options are available to you, such as pressure, hydraulic and pneumatic.You can also choose from medium temperature, drain backflow valve,as well as from water drain backflow valve and whether drain backflow valve is steel, stainless steel, or iron.