Pneumatic Traps Applications: Pneumatic traps are particularly suitable for use in thermal power station systems as a medium for switching on or off. Structural characteristics of pneumatic traps: 1, the upper valve by the valve cover and stuffing box, which will help quick disassembly and maintenance in place. Tilting stem construction and optimal flow path design make the media nearly straight, with optimal Cv values ​​and lower pressure drop than other types of valves. 2, the valve body to a special process surfacing carbide sealing surface (sealing surface after the overall hardening treatment), the structure is more compact. Conical sealing surface design allows a smaller axial force can be sealed, providing a reliable seal and long service life. 3, the use of valve body cavity-oriented valve with two guide ring up and down, the top and bottom of the valve flap at the same time guide to form the entire body in the valve cavity-oriented piston valve flap, you can eliminate due to a variety of stress The resulting card death, scratches the surface of the stem bent, flap flutter and so on. The guide ring at the bottom of the valve flap passes 90% of the fluid in a nearly straight line, effectively eliminating any adverse side effects. These features make the valve well suited for power plant steam rapid "drain" and "drain" systems. 4, valve sealing surface surfacing carbide, the alloy has excellent mechanical properties, wear resistance, erosion resistance, can maintain the valve long life. 5, Stem packing imported special packing, can play the best leak-proof effect, and durable, easy disassembly. The stuffing box and the valve body are sealed by the clip 316 high-head flexible graphite pad, with a predetermined torque assembly, safe and reliable, to prevent leakage. 6, Adopting pneumatic device as actuator, the valve control is accurate, safe and effective 7, Stuffing box adopts special structure design to ensure sufficient strength and good thermal characteristics.
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