Model Number: H44t Key Specifications/Special Features: Check valve:Features:This kind of valves are automatic type which opened by the pressure of the medium and closed by the reversing flow, thebetter the sealing is and the higher the reversing flow pressure.The water hammer rising has been taken into consideration during design,so it is reliable. edium：water、sea waterMain material：grey cast iron,ductile cast
iron,alloy cast iron Suitable temperature: ≤80°C Nominal pressure:
PN1.0MPa, PN1.6MPa Nominal diameter: DN80-600mm Flange dimension： BS4504ISO2531, ISO7005
and other standards conforming to the requirements Face to face length： BS5153, ISO5752, DIN3352, and other standards conforming to the requirements