# Keyword Analysis & Research: solenoid valve cv

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How do you calculate valve CV?

Cv by definition is the number of gallons per minute (GPM) a valve will flow with a 1 psi pressure drop across the valve. For example a valve with a Cv of 10 will flow 10 GPM with a 1 psi pressure drop. The formula used to select the valve Cv with the specified differential pressure is: Cv=GPM/((SQ RT(∆P)).

How do normally open solenoid valves work?

A normally open solenoid valve controls the flow of gas or liquid. This valve differs in the way that the flow is started or stopped. When a normally open solenoid valve is not powered, the plunger is down, which means that a flow is allowed through the valve.

What is the definition of valve CV?

The Control valve Cv means the flow coefficient of the valve. It applies to the factor of the head drop (Δh) or pressure drop (ΔP) over a valve with the flow rate Q. The formula will differ depending on the product the valve regulates, such as liquid, gas, or steam.