Introductionleader wafer one-way valves are engineered to stop the backward flow in a piping system. Valve is activated by the flowing substance within the pipeline. The force exerted by the fluid as it moves through the system opens the valve, In the event of any backward flow will close the valve. The closure is achieved through the weight of the check mechanism, By back pressure. The eccentrically mounted hinge pin in conjunction with the disc seat guarantees a positive shut, Off of the returning media. Wafer type single disc design. Renewable resilient epdm / nitrile seats ensure leakage class iv zero leakage . Very low face, To, Face dimensions hence space required for mounting is below 10% of that conventional pivot check valves. Short wafer body enables mounting the valve with shorter length fasteners of lesser number compared to flanged pivoting check valve approximately 50% saving in cost of fasteners. Tightening torque to achieve applied on the companion flange bolting is lower due to face sealing o, Ring. Practically maintenance, Free due to fewer number of parts and simple construction renewable resilient seat ensure zero leakage. Ideal for placement located between the flanges according to bs standards, 10 table reduced harm to the seat surface consequently of to o, Ring type body seat facing. The requirement for flange gaskets during installation is totally eliminated as a result of the in, Built face sealing 0 rings provided at the closure point face. Either vertically only upwards or horizontally installed. End details suitable for insertion between flanges in alignment with BS 10 table e pressure testing b. T. P. At 24 bar, Hydraulic s. T. P. At 17. 6 bar