What will happen if, in a regulating valve that is in operation, its spool suddenly comes loose?
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What will happen if, in a regulating valve that is in operation, its spool suddenly comes loose?
This situation occurred once here with us: our traffic level dropped instantly, and then remained fluctuating without ever reaching its original level. This should be related to both the pressure in the pipeline upstream of the valve and the weight of the valve core itself.
It feels like the pressure inside the tube is high; the flow rate must be fluctuating greatly
It is related to the pipe pressure and the weight of the valve core, and it should keep fluctuating
Haven’t encountered it yet; support the opinion from the second floor
The valve seat may be clogged with adhesive or foreign objects; it’s also possible that the pin connecting the valve stem to the valve core is broken, or the issue could be caused by an excessive pressure difference before and after the valve.
1. The controlled parameters change suddenly. 2. The control valve fails to perform its regulating function. 3. Operating the actuator with a handwheel is very easy.
In fact, it’s not just control valves; ball valves and gate valves also appear frequently