Valves used in some industries, such as the petrochemical industry, have the potential danger of fire, should be specially designed to make them still have certain sealing performance and operating performance under high-temperature fire. A fire safe test is an important method to measure the fire resistance of the valve. At present, there are There […]
Steam traps are a type of valve that automatically discharges condensate, air, and carbon dioxide gas from heating equipment or steam lines while minimizing steam leakage. Traps allow uniform heating of equipment or piping to prevent water hammer effect in steam pipelines. According to its mechanisms or operation principles, steam traps can be divided into […]
Steam reducing pressure valves are valves that precise control the downstream pressure of steam and automatically adjust the amount of valve opening to allow the pressure to remain unchanged even when the flow rate fluctuates by pistons, springs or diaphragms. The pressure reducing valve adopts the opening and closing parts in the valve body to […]
Cryogenic valves are mainly concentrated in liquefied parts and LNG storage parts for natural gas liquefaction plants. Form a rough statistic, there are about 2,000 cryogenic valves available in LNG receiving stations (large stations with a receiving capacity of more than 2 million tons/year), accounting for more than 90% of all the valves. Among them, […]
Nitrogen blanketing valve also referred to as a nitrogen padding valve or “make-up” valve, is the valve which filling the empty space of a liquid storage tank with nitrogen gas. The nitrogen seal device is mainly mounted on the top of the storage tank to control the micro-positive pressure of the storage tank, isolate the […]
The bellows valve’s stem is double sealed by the bellows and the packing, often used where it needs the strict sealing performance of valve stem. Metal bellows can produce the corresponding displacement under the action of pressure, transverse force or bending moment, and has the advantages of pressure resistance, corrosion resistance, temperature stability and long […]
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