Control Valve Cv Chart

It’s the right tool for finding the right product, every time.

Control valve cv chart. In deciding the size of the control valve that (port size) we need to calculate the cv value of the process (calculated cv) by calculating cv has educated more than 50 years, which is involved in. Gallons per minute of water at 60°f that will flow through a control valve at a specified opening when a pressure differential of 1psi. A control valve performs a special task, controlling the flow of fluids so a process variable such as fluid pressure, level or temperature can be controlled.

Equations displayed for easy reference. If the valve vents to downstream and differential pressure is low, then flow through the valve will be less than fully open. They express coefficient cv/kv as the flow rate of water in g.p.m.

When sizing a control valve, the most common approach is to calculate the flow coefficient, cv which is a measure of the capacity of the valve body and trim. Chapter 3 covers valve and actuator types. Control valve cv refers to the flow coefficient of the valve.

Chapter 5 is a comprehensive guide to selecting the best control valve for Download water c v diagram ; A valve cv can be described as the number of gallons per minute (gpm) at 60 o f (15.5 o c) that will pass through a valve with an associated pressure drop of 1 psi.

For a quick guide to valve designs, see table 3. Chapter 5 is a comprehensive guide to selecting the best control valve for an For measuring the valve capacity of control valves, the coefficient cv or its metric equivalent kv is adopted.

Determine the piping geometry factor (f p) and the liquid pressure recovery factor (f lp). (see figure 1 for an example.) read also: Cv = 1 x 28.8 = 1.06 any valve, therefore, which has a cv of at least 1.06, will extend our cylinder the specified distance in the required time.