16 Terms
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Control valves
Industry: Industrial valves
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Control valves
bench set
Industrial valves; Control valves
The proper definition for bench set is the inherent diaphragm pressure range, which is the high and low values of pressure applied to the diaphragm to produce rated valve plug travel with atmospheric ...
stroke
Industrial valves; Control valves
The distance the plug or stem moves in order to go from a full-closed to a full-open position. Also called stroke.
instrument pressure
Industrial valves; Control valves
The output pressure from an automatic controller that is used to operate a control valve. It is the input signal to the valve.
supply pressure
Industrial valves; Control valves
The pressure at the supply port of a device such as a controller, positioner, or transducer. Common values of control valve supply pressures are 20 psig. For a 3-15 psig. Output and 35 psig. For a ...
loading pressure
Industrial valves; Control valves
The pressure used to position a pneumatic actuator. It is the pressure that is actually applied to the actuator diaphragm or piston. It can be the INSTRUMENT PRESSURE if a valve positioner is not ...
static unbalance
Industrial valves; Control valves
The net force produced on the valve stem by the fluid pressure acting on the closure member and stem within the pressure retaining boundary. The closure member is at a stated opening with a stated ...
inherent diaphragm pressure
Industrial valves; Control valves
The high and low values of pressure applied to the diaphragm to produce rated valve plug travel with atmospheric pressure in the valve body. This is more commonly referred to as bench set.
