Pneumatic flange gate valve is a pipeline system through the handwheel rotary drive gate along the channel axis vertical direction movement cut off to connect the media flow control components, in the process of use, the valve shall be fully open or fully closed, can not be used to regulate the flow. Most of the gate valve is used to force the seal to make the sealing surface sealing. To 0.4 ~ 0.6MPa (gauge pressure) purified compressed air for the work pressure, push the piston, drive the gate for perpendicular to the displacement of the fluid, to achieve the purpose of opening and closing the valve.

Flange forged steel gate valve has three bonnet design forms. One is the bolt type bonnet, according to this design form of the valve, the valve body and bonnet with bolts and nuts connection, winding gasket (316 folder flexible graphite manufacturing) sealing, there is a requirement can also be used when the metal ring connection; a design form of welded bonnet, according to this design form of the valve, the valve body and bonnet threaded connection, all welded sealing, there is a requirement can also be used when the all welded winding connection; one is the Pressure self-tightening bonnet, according to this design form of the valve, the valve body and bonnet with threaded connections, internal pressure self-sealing ring seal.

Electric flange gate valve from the gate valve body with multi-turn electric actuator, so that the valve plate for up and down linear movement, to achieve remote control valve position switch, convenient and quick. Applicable media for water, oil, steam, and acid, alkali, ammonia, urea, sulfur-containing natural gas, etc., widely used in petroleum, chemical, water, thermal power station pipeline to achieve remote control valve position switch, cut off or connect the pipeline medium.

Stainless steel flange gate valve is a pipeline system through the handwheel rotary drive gate along the channel axis of the vertical direction of movement cut off to connect the media flow control components, in the process of use, the valve shall be fully open or fully closed, can not be used to regulate the flow rate, in the water vapor pipeline for the opening and closing of the pipeline to connect or cut off the medium in the opening and closing device, cut off or connect the pipeline medium, the applicable media for the water, oil, vapor, and acid, alkali, ammonia, urea, sulphurous Natural gas and so on. Widely used in petroleum, chemical, water, thermal power plants and other oil.

Wedge gate valve opening and closing member is the gate, the movement direction of the gate is perpendicular to the direction of the fluid, the gate valve can only be fully open and fully closed, can not be used for regulation and throttling. Widely used in petroleum, chemical, thermal power plants and other oil, water vapor pipeline to connect or cut off the medium in the pipeline. (Can not be used as a throttle valve).

Pressure self-sealing gate valve adopts the top-mounted structure, in high pressure, large Caliber conditions to reduce the valve body's own connecting bolts, enhance the reliability of the valve and can overcome the self-weight of the system on the normal operation of the valve's impact.Pressure self-sealing gate valve is mainly used in thermal power station pipeline, cut off or turn on the pipeline medium. Applicable media: water, steam and other non-corrosive media.