What is CV in control valve?

The flow coefficient, or Cv, is a universal capacity index and is simply defined as the number of US gallons of water per minute at 60F that will flow through a valve with a pressure drop of one psi. Sometimes pressure drop is described as pressure differential or delta P. Still confused.

What is the gas regulator?

A gas pressure regulator is a control device that maintains a defined pressure of a system by cutting off the flow of a gas or liquid when it reaches a set pressure. Pressure regulators come in several types and configurations and they provide control in a variety of applications in oil and gas processing.

What is difference between CV and KV in control valve?

Kv is the flow coefficient in metric units. Cv is the flow coefficient in imperial units. It is defined as the flow rate in US Gallons per minute [gpm] of water at a temperature of 60º fahrenheit with a pressure drop across the valve of 1 psi.

How do you calculate KV control valve?

The value of Kv in the same way is used to calculate the pressure drop in a valve according to the flow which crosses it….Q = Actual flow rate in m3/h at the temperature x.r = Density of the water in kg/dm3 (depends on the temperature)DP = Pressure drop through the valve in bar.

How do you size a pressure relief valve?

Here are six factors that must be considered when selecting and sizing safety or pressure relief valves.Connection size and type. The valve size must correspond to the size of the inlet and discharge piping. Set pressure (PSIG) Temperature. Back pressure. Service. Required capacity.

How do you size a pressure regulator?

Determine What Size Hayward Regulator is Required The theory behind sizing a regulator is to calculate the pressure drop across it at the required flow rate and compare it to the required pressure drop (the difference between the set pressure and the inlet pressure).

What is CV in control valve? The flow coefficient, or Cv, is a universal capacity index and is simply defined as the number of US gallons of water per minute at 60F that will flow through a valve with a pressure drop of one psi. Sometimes pressure drop is described as pressure differential or delta…