114 duckbilled sewage check valve products are offered for sale by suppliers on Alibaba.com, of which check valves accounts for 78%, valves(old) accounts for 3%, and control valves accounts for 2%.
A wide variety of duckbilled sewage check valve options are available to you, such as pressure, manual and hydraulic.You can also choose from normal temperature, medium temperature and high temperature duckbilled sewage check valve,as well as from water, gas, and oil duckbilled sewage check valve, and whether duckbilled sewage check valve is steel, stainless steel, or iron.