Basic technical parameters of the highest-grade valves abroad: Maximum temperature, Minimum temperature, Maximum pressure, Minimum pressure, Maximum diameter

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With the improvement of various types of complete equipment, process flows, and performance, the range of valve types available abroad continues to expand, and many new types of valves have emerged in recent years. Examples include various types of modern valves such as emergency shut-off valves, quick-acting valves, fire dampers, antistatic valves, temperature and pressure reducing valves, butterfly check valves, pressure relief valves, vacuum jacket valves, water-cooled or air-cooled valves, safety gate valves, and safety globe valves. Among general-purpose valves, ball valves, butterfly valves, and plate gate valves are the types that have seen the fastest development over the past 20 years. The basic technical parameters of the highest-grade valves abroad are shown in the table below. Basic technical parameters of the highest-performance valves abroad: Valve type, Maximum diameter, Maximum temperature, Minimum temperature, Maximum pressure, Minimum pressure, Flow rate (mm) (℃) (℃) (MPa) (MPa) (kg/h). Gate valve: 4200, 1500, -270, 105, 1×10^-10; Globe valve: 400, 1267, -270, 1460, 1×10^-10; Check valve: 5500 (multi-disc), –, 1000, 1×10^-10; (800 single-disc): 70.3; Ball valve: 3050, –, 42, –; Butterfly valve: 9750, 1093, –18, –; Trap: 150, 563, –, 17,200