The gas the kinds of pneumatic valve

with the progress of production technology, gas pneumatic valve application in the production and living is becoming more and more widely, so the gas type of valve pneumatic how many? How to distinguish? Here are the kinds of pneumatic valve is introduced: gas
double ram gas block brake pneumatic valve
double ram gas block brake pneumatic valve by pneumatic valve, pneumatic valve cover, disc, driving some. Cool it gate in the head through a connecting piece together. When falling gate closed, against the circular arc surfaces of the head connecting piece and located in pneumatic valve body in two positioning wedge cooperate with gate around parts of the inclined plane and gate on both sides of the oriented, and pressure pneumatic valve sealing surface. Double ram there is a connection between pin with pneumatic chute on the valve body to ensure the integrity of the gate of the condition for homework. Pneumatic valve sealing surface mechanical connection way, will the sealing surface of the corrosion resistance, wear resistance treated parts with bolt and pneumatic valve body join together, in order to open it, adjustment and correction, there is no leakage.
double ram gas block brake pneumatic valve can be planning into parallel seal face and double rake face. In order to prevent the pneumatic valve opening and closing gate and pneumatic valve sealing surface wear, equalizing pipe in the pipe equipment. According to the different applicable strength requirements, can choose drink more heat resistant cast iron nodular graphite cast iron for data pneumatic valve body, disc and cover.
gas use pneumatic valve plate gate
gas use pneumatic valve plate brake characteristic is: choose ptfe double pneumatic sealing seat, is advantageous for the pneumatic valve maintenance in operation; Together, to prevent condensation or grime in pneumatic seat and pneumatic valve stem appearance; Pneumatic valve seat opposite with o-ring, to ensure the seal. Other, is also equipped with mm or mm screw tossing in hole, the top for gas radiation or pressure testing, the bottom for drainage with pneumatic valves. Can be vertical or horizontal installation, and equipped with corresponding gear operation organization.
gas with flat brake choose non-rising stem layout pneumatic valve, pneumatic valve stem choose carbon steel chrome plating, filling self-lubricating V type packing or rubber ring; Pneumatic valve rod attached to the following instructions organization, outside with aluminum shell maintenance; Pneumatic disc choose stainless steel.
gas use tablet pneumatic valve pneumatic brake valve body material for gray cast iron, cast steel and steel plate welded together. Cast iron pneumatic valves no impact on the biggest pressure for homework. MPa，DNmm- DNmm for cast steel; DNmm - DNmm for steel plate welding, steel casting maximum no impact work pressure of the pneumatic valve. MPa。 Nominal diameter DNmm - DNmm。
gas with flat brake pneumatic valve is widely used for gas transmission pipeline, also applies to ships, port and deliver to chlorine and other categories.
gas with parallel double disc brake pneumatic valve
gas with parallel double disc brake pneumatic valve pneumatic valve body and valve cover made from cast iron. Between parallel double ram is equipped with four volute spring, in the process of opening and closing, make the disc sealing surface and the pneumatic valve sealing surface against all the time, can timely remove seal surface dirt. The underside of pneumatic valve is equipped with two square root out hole, can easily eliminate accumulation at the bottom of the pneumatic valve of gas condensate and grime. Don't tossing on the hole, a radiation gas; 2 for pressure testing; Three injectable cleaner to wipe out the pneumatic valve stem grime. Pneumatic valve filling graphite, asbestos packing, and lubricating oil injection hole is set up.