Pneumatic Control Butterfly Valve

8 month ago

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Zhengzhou guan hao yong International Trade Co.,

12 month

Product details

Pneumatic lug butterfly valve is a valve that combines pneumatic actuator and butterfly valve, widely used in various industrial fields. The working principle is that pneumatic actuators usually use compressed air as a power source to drive the disc-shaped butterfly plate to rotate by driving the valve stem, thereby achieving the function of opening or closing. The butterfly plate rotates around its own axis inside the valve body. When the butterfly plate rotates from its initial position to a 90 ° angle with the valve body, the valve is in a fully open state

Critical factor

1. Valve body connection method: Choosing the appropriate connection method is crucial for seamless integration of fluid control systems. Common connection methods include flanges, threads, clamping, and welding. Flange connections are suitable for high-pressure and high-temperature environments, threaded connections are suitable for applications with limited space, clamped connections facilitate quick assembly and disassembly, while welded connections ensure permanent sealing and structural integrity.

2. Connection standards: Ensure that valves comply with applicable industry standards such as ANSI, JIS, DIN, or GB to ensure compatibility with existing systems.

3. Valve body material: Choose materials suitable for the application environment, such as stainless steel, carbon steel, brass, cast steel structure, or plastic. Each material has its unique properties, such as corrosion resistance, mechanical strength, and cost-effectiveness.

4. Valve seat and sealing material: Select appropriate valve seat and sealing materials to ensure reliable performance and leak proof sealing. Common materials include PTFE, PEEK, and EPDM.

5. Valve disc material: Select the appropriate valve disc material based on the corrosiveness of the medium and operating conditions, such as stainless steel, cast iron, duplex steel, nickel aluminum bronze, or plastic.

Valve front and rear

Installing a Y-shaped filter in front of the protruding butterfly valve can remove solid particles from the fluid and protect the sealing surface of the valve. Installing a check valve behind the valve can prevent fluid backflow and protect system safety. If it is necessary to quickly cut off the fluid in emergency situations, gate valve or globe valve can be installed before and after the valve.

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