Flow Control Valve
Flow Control Valve
(OP)
I am using a sequence valve with two cylinders, 1 small cylinder and 1 large cylinder. In order to extend the large cylinder in a reasonable time I have to have a large flow rate. The problem is the flow rate will be too high for the smaller cylinder. So my question is how can I slow down the second cylinder? My initial thought is to use a couple of flow control valves, but I am concerned they will affect the sequence valve in some way.
This is a side question to the main one. How does a flow control valve reduce flow? Intuitively I would say pressure builds up on the inlet because less fluid is allowed through. However looking at Bernoulli's P1+(1/2)*p*V1^2=P2+(1/2)*p*V2^2 would say otherwise. It says that the inlet with a higher flow rate would result in a lower pressure in order for the output to have a lower flow rate, but a higher pressure.
A little help would be appreciated.
This is a side question to the main one. How does a flow control valve reduce flow? Intuitively I would say pressure builds up on the inlet because less fluid is allowed through. However looking at Bernoulli's P1+(1/2)*p*V1^2=P2+(1/2)*p*V2^2 would say otherwise. It says that the inlet with a higher flow rate would result in a lower pressure in order for the output to have a lower flow rate, but a higher pressure.
A little help would be appreciated.





RE: Flow Control Valve
A three-port or bypass flow control meters flow to the load and passes excess flow to the bypass port to tank. Metered flow is controlled by maintaining a differential pressure across the metering orifice. Input pressure is the sum of load demand pressure and the control differential pressure.
Excess flow has to go somewhere or not be generated.
Ted
RE: Flow Control Valve
Roy
RE: Flow Control Valve
RE: Flow Control Valve
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