Forced double seal flat gate valve

Forced double seal flat gate valve

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Details

Purpose and scope:

Z43wHF type forced double sealing flat gate valve is mainly used for oil and gas gathering and transportation pipeline network station for cut off medium, suitable for oil, natural gas, liquefied petroleum gas, water and other media, can be widely used in petrochemical, metallurgy, construction, civil aviation, airport, urban drainage and other industries.

Main parameters of the valve:

PN1.0 ~ 70.0Mpa, DN40 ~ 1200mm, applicable temperature -46~350 ℃, can be used for process control of oil, gas, water, H2S CO2 and other corrosive media gathering and transportation pipe networks. During use, the ram should be in fully open or fully closed position. When throttling is required, it should be explained when ordering, and it can be produced according to regulated type.

Product structure:

Forced double sealing flat gate valve is a new generation of flat gate valve developed on the basis of summarizing and absorbing the current differential pressure self-sealing structure principle of domestic and foreign counterparts. It can realize bidirectional self-sealing and forced sealing of the valve and meet the leakage requirements.

The valve structure design is reasonable, and the external dimensions meet the requirements of process installation. The forced double-seal flat gate valve adopts the valve seat downstream floating parallel sealing sub-belt forced sealing structure. The sealing surface is soft and hard double sealing, and hardfacing hard alloy and PTFE soft sealing materials are adopted, so that the valve can realize differential pressure self-sealing and double sealing function of forced sealing, and can achieve reliable sealing at low pressure and high pressure, the real realization of the control medium to leak, the valve set at the bottom of the sewage structure can prevent the accumulation of pipeline impurities in the valve, eliminating the normal opening and closing of the valve.

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