Q641H, high temperature Q641Y pneumatic ball valve and ball valve difference is bigger, we can distinguish from the function to go up and ball valve and Q641H different function, high temperature Q641Y pneumatic ball valve, from ball Industrial Valves and distinguish Q641H, Q641Y pneumatic high temperature ball valve structure. 【 Functional difference between 】 Q641H/Y pneumatic high temperature ball valve is to use metal hard seal ball valve and piston of pneumatic actuators. Use a metal hard seal seat sealing surface, can be applied to medium within 500 ° or less. Pneumatic high temperature ball valve can be matched with the valve locator input control signals ( 4 - Madc or 1-20 5伏直流电) Source control operation. Can travel limit switch, solenoid valve, pressure reducing valve, and 0. 4 to 0. 7 mpa gas source switch operation can be realized, and sent out to passive contact signal indicates the switch valve. Pneumatic overall high temperature ball valve has a compact structure, small volume, reliable operation, good sealing, easy maintenance, easy installation, strong adaptability, etc. Is particularly suited to medium thick pneumatic high temperature ball valve, ball valve and Q641H, Q641Y 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 】 Q641H, high temperature Q641Y pneumatic ball valve ball valve' Summary 】 Q641H, Q641Y pneumatic high temperature ball valve and ball valve and the use function, the difference in the application are very different, in the selection of a certain need to pay special attention to diameter, pressure, material and use of media, no matter when the design, or in the purchase, must be in strict accordance with the relevant technical requirements.
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