Applicable scenarios for control valves, throttle valves, and pressure relief valves
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I would like to ask the experts: what are the differences in their applicable scenarios among control valves, throttle valves, and pressure reducing valves? In many production scenarios, control valves actually serve as pressure-reducing throttles; as the flow is throttled, the pressure also decreases. What considerations should be taken when selecting such valves?
Control valves are generally used for the automatic regulation of pressure or flow. Although there is a throttling process involved in their operation, their purpose is not throttling; rather, it is to regulate pressure or flow. They do have a throttling effect, but it does not reach the level required for throttling purposes, as their main function is indeed to regulate pressure or flow. The purpose of a throttle valve is throttling, and its primary role in a process is to perform throttling – this is different from control valves. Pressure reducers can basically be replaced by control valves; if accuracy in pressure control is not a requirement, a regular pressure reducer will suffice
Thank you! I strongly agree that \"pressure relief valves can basically be replaced by control valves,\" and this is indeed what is done in many factories.
Control valves have a throttling function, but this is not their primary purpose; they are generally not used for regulating flow