| Media: | Aqueous Vapor Liquid |
|---|---|
| Temperature: | Ordinary Temperature |
| Actuator: | Manual Pneumatic Electric |
| Material: | Stainless Steel Carbon Steel |
| Structure: | Through Way Globe Valve |
| Sealing Form: | Hard Seal and Soft Seal |
| Customization: |
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| J541H Bevel gear US standard globe valve Details: |
| Pressure environment: 150LB,300LB,600LB,900LB Body material: cast steel A216, WCB(carbon steel); Low temperature steel, chromium molybdenum steel, etc Connection form: flange; welded Nominal diameter: 2"-32" Applicable medium: water, oil, steam - carbon steel + chromium molybdenum steel; Propane, ethylene, etc. - low temperature steel; Working temperature: carbon steel -29ºC ~ 425ºC; Low temperature steel -46ºC ~ 350ºC, Chromium molybdenum steel -29ºC ~ 550ºC. Design and manufacture: API 600 Structure Length: ANSI B 16.10 Pressure Temperature grade: ANSI B 16.34 Test and inspection: API 598 Driving mode: electric, pneumatic, hydraulic, gear, etc Applicable industries: petroleum, chemical, thermal, pharmaceutical, chemical fertilizer, power plant and other industries Bevel gear American standard globe valve J541H (large diameter globe valve) Product introduction: The opening and closing part of the bevel gear globe valve is a plug shaped disc, the sealing surface is flat or conical, and the valve disc moves in a straight line along the center line of the fluid. The movement form of the valve stem, there are lifting rod type (the valve stem lifting, the handwheel does not lift), there are also lifting rotary rod type (the handwheel and the valve stem rotating lifting together, the nut is set on the valve body). The globe valve is only suitable for full opening and full closing, and is not allowed to be adjusted and throttled. The American standard globe valve mainly has API and ASME standards, ASTM, ASTM is the material standard, not the standard of the valve itself; According to the American standard design, manufacturing, production, testing of the globe valve is called the American standard globe valve. American standard globe valve and flange globe valve is the same type of valve, the closing part is a valve disc, the valve stem rotates around the center line of the body to achieve the opening and closing of a valve. Bevel gear American standard globe valve J541H Main advantages: American standard stop valve is mainly used to cut off, distribute and change the flow direction of the medium in the pipeline. American standard globe valve is a new type of valve widely used in recent years, it has the following advantages: 1. The fluid resistance is small, and its resistance coefficient is equal to that of a pipe segment of the same length. 2. Simple structure, small size and light weight. 3. Tight and reliable, at present, the sealing surface material of gate valve is widely used in plastic, good sealing, and has been widely used in vacuum system. 4. Easy to operate, open and close quickly, from full open to full close as long as the rotation of 90 degrees, easy to remote control. 5. Convenient maintenance, gate valve structure is simple, sealing ring is generally active, disassembly and replacement are more convenient. 6. When fully open or fully closed, the sealing surface of the ball and the seat is isolated from the medium, and the medium will not cause the erosion of the sealing surface of the valve. 7. Wide range of application, diameter from small to a few millimeters, large to a few meters, from high vacuum to high pressure can be applied, the ball rotates 90 degrees, in the entrance and exit should be all spherical, thus cutting off the flow. Large diameter globe valve features: 1, advanced structure, reliable sealing, excellent performance, beautiful appearance. In particular, the opening and closing adopts the active connection structure, which greatly improves the steel of the valve stem, significantly reduces the noise and vibration, and improves the service life and performance of the valve. 2, can be installed in any position of the pipeline, the medium can be passed in any direction. 3, DN250 more than the use of advanced multi-seal, double support, the use of guided movement (can greatly improve the water hammer impact), the medium from the top to enter, good to solve the large diameter stop valve opening and closing torque, seal can not be closed strictly, packing room running, leakage and other problems, effectively improve the performance of the valve and the range of use. (The torque of "off" is 10% of the ordinary valve, and the torque of "open" is 3% of the ordinary valve). 4, stainless steel globe valve is suitable for all kinds of corrosive media on the pipeline, has good corrosion resistance and enough strength. 5, alloy steel stop valve is suitable for high temperature resistant steam, oil pipelines, with high temperature resistance characteristics. Bevel gear American standard globe valve performance specification
Bevel gear American standard stop valve principle When the medium flows from below the valve disc, the applied sealing force must be equal to or greater than the sum of the specific pressure generated on the sealing surface and the upward force of the medium. When the medium flows from the top of the valve disc, the applied sealing force is equal to or greater than the difference between the specific pressure force and the media force generated on the sealing surface. Its advantage is that there is no friction when the contact surface is close, and when the roundness of the sealing surface is deformed due to the stress of the pipeline, the performance of the sealing surface will not be affected. However, solid particles and precipitates in the medium are easy to damage the sealing surface. Bevel gear American standard globe valve valve main parts materials
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