Question: Measured torque for closing a ball valve from the open position
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Does anyone have the torque values for ball valves when moving from open to closed (0-90 degrees) at different pressure differences? Since the specific values are confidential, if any such values exist, please multiply them by a certain number; there is no need to tell me the specifications. I just want to plot the curves for specific different pressure differences. If there are any, please share them. Thank you!
It’s not really a secret – different factories have varying levels of craftsmanship, which means the torque required for valves also varies. Special instruments are needed to measure this. Our factory used to have such an instrument, but to be honest, it wasn’t very useful; it was enough to know the maximum value when using an actuator
Thank you, I need a set of data to see the trends; it’s for writing an article. It’s not for selection purposes.