Extended Body Gate Valve

KOSEN VALVE is specialized in manufacturing Socket Welding Forged Gate Valve with following good characteristics: good sealing performance, reliable safety guarantee, long life span and etc. Socket Welding Forged Gate Valve is usually used for DN40 for its economic features, and butt welding ends is for DN40. Socket welding is widely used for small size pipe because they would always have a thin wall thickness which may have problems for butt welding. Moreover, the birdsmouth part of socket welding has the function of reinforcement so that it is also welcomed under high pressure.

The DIN Cast Steel Gate Valves Compact structure, reasonable design, good valve rigidity, smooth passageway and small flow resistance coefficient, including DIN F5、DIN F7、DIN F4 Rising Stem Gate Valve, DIN F15 Non-Rising Stem Gate Valve, DIN F1、DIN F2 Globe Valve, DIN F32 Angle Globe Valve, DIN F1、DIN F6 Swing Check Valve, DIN F1 Lift Check Valve, DIN Cast Iron Valve etc, Our products are utilized widely in oil, gas, hydraulic, refining chemicals, petrochemicals, pharmaceuticals, food industries, fire-safe systems, marine systems and power stations, etc.

KOSEN Cast Bronze Gate Valves are designed and manufactured to ensuru leakage of less tjan 100 ppm(parts per million) of volatile organic compounds. Extensive base line laboratory testing (static and cycle testing) has been performed establishing critical design parameters necessary to achieve low emission sealing in the KOSEN stem packing seal area and in the bonnet gasket sealing area, in-house testing procedure has been developed and is periodically performed to ensure that standard product design and manufacting criteria consistently result in the KOSEN Cast Bronze Gate Valve meeting a maximum of 100ppm Voc leakage prior to shipment.

The opening and closing parts of forged steel gate valves are gate plates. The movement direction of the gate is perpendicular to the direction of the fluid, and the forging gate valve can only be fully opened and closed, and can not be adjusted and throttled. The gate of the forging gate valve has two sealing surfaces. The two sealing surfaces of the most commonly used gate valves are wedge-shaped and wedge angles vary with valve parameters.