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The fluid compressed by the piston is prevented from escape by a rubber O-ring at its lower end. The French pressure cell press, or French press, is an apparatus used in biological experimentation to disrupt the plasma membrane of cells by passing them through a narrow valve under high pressure. [1] The French press can also be used for ...
Shutdown valve - Wikipedia ... Shutdown valve
Pressure regulator
A control valve is a valve used to control fluid flow by varying the size of the flow passage as directed by a signal from a controller. [1] This enables the direct control of flow rate and the consequential control of process quantities such as pressure, temperature, and liquid level. In automatic control terminology, a control valve is termed ...
Butterfly valve - Wikipedia ... Butterfly valve
The most common final control element in the process control industries is the control valve. The control valve manipulates a flowing fluid, such as gas, steam, water, or chemical compounds, to compensate for the load disturbance and keep the regulated process variable as close as possible to the desired set point. [1]
Globe valve - Wikipedia ... Globe valve
Rotary valve - Wikipedia ... Rotary valve