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Regarding the issue of valve opening torque

2015-06-01View Original

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I dare to ask: does a high opening torque of a valve mean that more resistance is encountered when opening the valve? :lol
Reply #22015-06-01
Firstly, there are more than one reason for high starting torque, but when it is not possible to start or stop quickly, it will suffer from significant impact from the medium; I’m not sure whether you have a manual valve or a automatically controlled valve. If it’s an automatically controlled valve, it is recommended to increase the torque of the actuator by 30%-50% as a safety measure. Some manufacturers produce valves with high torque in the first place; valves of the same diameter and material from these manufacturers can have a torque that is one or two times higher than those from other manufacturers.
Reply #32015-06-01
Factors affecting this torque: 1. Type of valve, 2. Operating pressure of the medium, 3. Precision of manufacturing and processing.
Reply #42015-06-01
Factors affecting this torque: 1. Type of valve, 2. Operating pressure of the medium, 3. Valve size; 4 Precision of manufacturing and processing.
Reply #52015-06-01
I’ve learned something; thanks for the guidance! :D

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