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Was looking at a reply on 19 March 2010 - 2:23 pm using a butterfly valve as an example of a control valve and at the same time highlighting the problems it causes. Can anyone please explain to me why any design engineer would opted to use a butterfly valve at all as a control valve. Are they in some applications more suitable than globe valves, or is this all about cost saving and low priority control applications?
I find it difficult to accept that anyone that knows the flow profile of a butterfly valve will still use and try and do control with it. (10% valve opening will already give about 90% of max flow)
I find it difficult to accept that anyone that knows the flow profile of a butterfly valve will still use and try and do control with it. (10% valve opening will already give about 90% of max flow)