Seeking advice on the method for rotating the valve head of large-diameter butterfly valves and relevant precautions
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Hello, sea friends: During the maintenance process, the handle of a 1200mm butterfly valve was located far away from the operation platform, and the client requested that the valve be rotated. Since there are no supports at the top and bottom of the pipe, and there is not enough clearance between the flanges, it is not possible to rotate the valve as a whole. Can the valve head be rotated separately? What are the methods for rotating the valve head and the precautions to take? The medium flowing through the pipeline is nitrogen; does changing the orientation of the valve head affect the valve’s sealing performance?
It is possible to rotate the actuator alone, but I’m not sure what the structure of the connecting shaft between the valve and the actuator is; I’m worried that after disassembly, it won’t be possible to install it again after rotating it 180 degrees. It’s best to contact the manufacturer