Pressure vs Flow: Impact of Flow Control Valves

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Using flow control valves in pneumatics or hydraulics does not inherently reduce pressure; instead, they regulate flow rates. When flow to a piston is significantly reduced, such as to a drip, the pressure remains constant, but the force output may be affected due to the slower movement of the piston. The pressure can build up to the system's maximum if the flow is restricted, but the force exerted by the piston will depend on the flow rate. A flow control valve typically creates a pressure drop as it restricts flow, indicating that without a pressure drop, there is no flow. Understanding the relationship between flow and pressure is crucial for effective system performance.
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In terms of pneumatics or hydraulics does using a flow control valves reduce pressure??

I would assume that reducing flow does not reduce pressure but what if the flow to the piston of a double acting cylinder was reduced to a drip...would you still achieve the same force?? because of the constant pressure would the drip continue to build until full pressure was reached??
 
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Yes, a flow control valve works by restricting the flow in a pipe and thus normally has an associated pressure drop while controlling. A control valve with no pressure drop has no flow through it.
 

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