... : -10°C~150°C Suitable Medium: Water,Sewage,Seawater,Gas,Food,Oils,etc.2. StandardDesign Standard: JB/T8527-97Structural Length ... connection: Double-clipType3. Feature:Butterfly Check Valve is also called Double-clip Type Valve, it is our factory uses the overseas ... products. Small volume, light weight, compact structure, convenient maintenance. Valve plate using dual type, in the spring of the elastic ...