Forged Pressure Seal Gate Valve

KOSEN Cast steel Gate Valves are primarily used for stop valves fully opened or fully closed .They are not normally considered for throttling purposes,but more for slurries,viscous fluids,etc. Gate valves are characterized by a traveling wedge ,which is moved with the operation of the stem nut. Gate valves usually have a minimum pressure drop when fully open,provide tight shut-off when fully closed,and remain relatively free of contamination buildup.

KOSEN Forged steel cryogenic valves are mainly applicable to various piping systems of thermal power plants, cutting off or connecting piping medium. Applicable medium: water, steam and other non corrosive media. Compared with other valve products, forged steel valves are characterized by high temperature, high pressure and unique self sealing design. The higher the pressure, the more reliable the sealing is. Because of the special technical characteristics and special working conditions, the products also have the characteristics that other products can not replace.

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 Cast Steel Slab gate valves is a sliding valve with closing parts as parallel gates. The shutter can be single gate or double gate with extension mechanism. The pressing force of the gate to the valve seat is controlled by the medium pressure of the floating gate or floating seat. If it is a double gate flat gate valve, the expansion mechanism between the two gates can supplement this compaction force.The flat gate valves can be divided into manual flat gate valves, pneumatic flat gate valves and electric flat gate valves according to the driving mode. It can be divided into flat gate valve with diversion hole, flat gate valve without diversion hole, flat gate valve of oil field, flat gate valve of pipeline and gas plate valve.