Nuclear-grade pneumatic gate valve
A kind of pneumatic gate valve, nuclear-grade technology, applied in sliding valve, valve details, valve device and other directions, can solve the problems of poor shock resistance, simple structure, high-end valve dependence on imports, etc., to reduce weight and volume, reduce axial force , the effect of reducing weight and height
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[0015] As attached Figure 1~2 As shown, a nuclear-grade pneumatic gate valve is set on the lowermost valve body with a bonnet, a pneumatic actuator is arranged on the bonnet, and a connecting rod is arranged in the center of the pneumatic actuator, and the connecting rod is fixedly connected with the valve stem, inside the valve body Set the ram frame and ram, set the ram on the ram frame, and set the packing on the valve cover.
[0016] The valve body, the valve cover and the pneumatic actuator are integrally connected by a middle flange stud.
[0017] The gate is a spring-type parallel double gate structure, which will not cause wedging phenomenon at high temperature, and can effectively reduce the valve opening and closing axial force, reducing the weight and volume of the pneumatic actuator.
[0018] An upper seal is arranged at the connection between the valve stem and the valve cover, and a valve seat seal is arranged at the connection between the valve body and the gate plat...
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