Control valves

Control valves

Contributors in Control valves

Control valves

Is the boiling or vaporizing of a liquid. See the definition of cavitation. When the vapor pressure downstream of a control valve is less than the upsteam vapor pressure, part of the liquid changes ...

pressure 1 (P1)

Industrial valves; Control valves

Is used to designate Inlet Pressure.

direct actuator

Industrial valves; Control valves

Is one in which the actuator stem extends with an increase in diaphragm pressure.

air set

Industrial valves; Control valves

Also supply pressure regulator. A device used to reduce plant air supply to valve POSITIONERS and other control equipment. Common reduced air supply pressures are 20 and 35 psig.

liquid pressure recovery

Industrial valves; Control valves

A number used to describe the ratio between the pressure recovery after the vena contracta and the pressure drop at the vena contracta. It is a measure of the amount of pressure recovered between the ...

incipient cavitation

Industrial valves; Control valves

Is a term used to describe the early stages of cavitation. At this point the bubbles are small, and the noise is more of a hiss, like the sound of frying bacon. There is normally no mechanical damage ...