Q641F, Q641FH pneumatic flanged ball valves and ball valves difference is large, we can distinguish from the function to go up and ball valve and different Q641F, Q641FH pneumatic flanged ball valves, from ball valve and distinguish Q641F, Q641FH pneumatic flanged ball valve structure. 【 Functional difference between 】 Q641F/H pneumatic flanged ball valve pneumatic actuator with high precision and precision casting ball valve. Mainly divided into pneumatic sealing ball valves ( ≤ 200° ） And pneumatic hard sealing ball valve ( ≤ 550° ） Two kinds big. Pneumatic ball valve has a compact structure, small volume, reliable operation, low coefficient of flow resistance, good sealing, easy maintenance, easy installation, strong adaptability, etc. Pneumatic ball valve can match lead limit switch, solenoid valve, pressure reducing valve and 0. 4 - 0. 7 mpa gas source switch operation can be realized, and sent out to passive contact signal indicates the switch Industrial Valves. Pneumatic flanged ball valve is particularly suitable for medium thick, containing particles, the occasion of fiber properties. Pneumatic ball valve is widely used in stone ball valve and Q641F, Q641FH pneumatic flanged ball valves difference is bigger, ball valve, 球阀) Opening and closing is a sphere, driven by the valve stem, and for ball valve axis rotate 90 & deg; Open or closed. Can also be used on regulation and control of fluid, mainly used for cutting in line, distribution, and change the flow direction of medium, good sealing, convenient operation, opening and closing fast, simple structure, small volume, small resistance, light weight, etc. 【 Physical difference between 】 Q641F flange ball valve, Q641FH pneumatic ball valve 【 Summary 】 Q641F, Q641FH pneumatic flanged ball valve and ball valve and the difference function, are quite different in application, in the selection of a certain need to pay special attention to diameter, pressure, material and use of media, whether at design time, or in the purchase, must be in strict accordance with the relevant technical requirements.
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