Torque of vacuum butterfly valve
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The torque of the butterfly valve is known at 0.5–2.0 MPa; now that a vacuum environment is required, how can the torque be determined? Thank you~
One more question: Is the testing of vacuum valves also carried out in accordance with API609? Is the leakage rating also described the same as in ANSI/FCI 70-2?
It is estimated that it will not exceed the torque under positive pressure conditions, and there are corresponding standards for the inspection criteria.