Operating torque of cast iron butterfly valve-jlsvalve.com

Operating torque of cast iron butterfly valve

The operating torque of cast iron butterfly valve varies depending on the opening degree and the direction of opening and closing of the valve. Horizontal butterfly valves, especially large-diameter valves, cannot be ignored due to the water depth and the difference between the head and the head of the valve shaft. In addition, when the valve inlet side device is bent, a bias current is formed and the torque is increased. When the valve is in the middle opening, the operating mechanism needs to be self-locking due to the action of water flow torque.

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