How to distinguish between pressure relief valves and throttle valves and which one to choose? ? ?
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Hello everyone, may I ask what is the difference between a pressure relief valve and a throttle valve? ? How to choose? Can a throttle valve also reduce pressure? Thank you!
Just by looking at the names, it’s completely different; the purposes for which they are used vary, and as a result, the methods of processing and the outcomes also differ. The purpose of a pressure relief valve is to reduce pressure, so there must be a target pressure range; the valve is equipped with springs, pistons, or diaphragms. The throttle valve is similar to the globe valve; the difference between them lies in the valve core
A pressure relief valve reduces the high-pressure medium supplied at the input side to the low pressure level you have set; this process involves the release of the medium； The throttle valve, on the other hand, controls the flow rate of the medium merely by the opening degree of its valve element; their functions are different.
I think the original poster is asking this out of sheer laziness; it’s completely possible to study it from a theoretical perspective – just by looking at relevant materials one can understand it
Oh, I see. Thank you:victory:
Will the flow rate change after these two valves? I’m not very clear – does the flow rate remain unchanged after passing through a pressure reducing valve, or does it decrease after passing through a throttle valve? ?
I’ve read the theory, but I can’t understand it, so I was wondering if anyone has an easy way to remember it
On some flash vessels, a throttle valve is indicated instead of a pressure relief valve – is there any difference between the two?