Quick Details Place of Origin: Tianjin, China Brand Name: TWS Check Valve Model Number: Check Valve Application: General Material: Casting Temperature of Media: Normal Temperature Pressure: Medium Pressure Power: Manual Media: Water Port Size: DN40-DN800 Structure: Check Standard or Nonstandard: Standard Check Valve: Wafer Butterfly Check Valve Valve type: Check Valve Check Valve Body: Ductile Iron Check Valve Disc: Ductile Iron ...