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2. Solenoid valve - Wikipedia

   en.wikipedia.org/wiki/Solenoid_valve

   The solenoid valve (small black box at the top of the photo) with input air line (small green tube) used to actuate a larger rack and pinion actuator (gray box) which controls the water pipe valve. Solenoid valves are also characterized by how they operate. A small solenoid can generate a limited force.

3. Heron's fountain - Wikipedia

   en.wikipedia.org/wiki/Heron's_fountain

   Heron studied the pressure of air and steam, described the first steam engine, and built toys that would spurt water, one of them known as Heron's fountain. Various versions of Heron's fountain are used today in physics classes as a demonstration of principles of hydraulics and pneumatics .

4. List of valves - Wikipedia

   en.wikipedia.org/wiki/List_of_valves

   Swirl valve: a specially designed Joule–Thomson pressure reduction/expansion valve imparting a centrifugal force upon the discharge stream for improving gas–liquid phase separation; Tap (British English), faucet (American English): the common name for a valve used in homes to regulate water flow; Tesla valve: a form of check valve with no ...

5. Solenoid (engineering) - Wikipedia

   en.wikipedia.org/wiki/Solenoid_(engineering)

   Hydraulic solenoid valves are in general similar to pneumatic solenoid valves except that they control the flow of hydraulic fluid (oil), often at around 3000 psi (210 bar, 21 MPa, 21 MN/m 2). Hydraulic machinery uses solenoids to control the flow of oil to rams or actuators. Solenoid-controlled valves are often used in irrigation systems ...

6. Control valve - Wikipedia

   en.wikipedia.org/wiki/Control_valve

   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.

7. Rotary vane pump - Wikipedia

   en.wikipedia.org/wiki/Rotary_vane_pump

   Vane pumps are commonly used as high-pressure hydraulic pumps and in automobiles, including supercharging, power-steering, air conditioning, and automatic-transmission pumps [citation needed]. Pumps for mid-range pressures include applications such as carbonators for fountain soft-drink dispensers and espresso coffee machines [citation needed].