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2. 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 ...

3. Solenoid valve - Wikipedia

   en.wikipedia.org/wiki/Solenoid_valve

   Solenoid valves. A solenoid valve is an electromechanically operated valve.. Solenoid valves differ in the characteristics of the electric current they use, the strength of the magnetic field they generate, the mechanism they use to regulate the fluid, and the type and characteristics of fluid they control.

4. Watson Valve Services - Wikipedia

   en.wikipedia.org/wiki/Watson_Valve_Services

   Watson Valve Services, Incorporated, known as Watson Valve is an industrial company based in Houston, Texas. It makes, repairs and modifies valves used in the petrochemical industry . [ 1 ] The firm is privately owned and established in 1972.

5. Two-stroke power valve system - Wikipedia

   en.wikipedia.org/wiki/Two-stroke_power_valve_system

   A stroke is the action of a piston travelling the full length of its cylinder.In a two-stroke engine, one of the two strokes combines primarily the intake stroke and the combustion stroke, while the other stroke primarily combines the compression stroke and the exhaust stroke, though technically since both ports are exposed during both the combustion and compression strokes, some reversion ...

6. Solenoid - Wikipedia

   en.wikipedia.org/wiki/Solenoid

   The magnetic field inside an infinitely long solenoid is homogeneous and its strength neither depends on the distance from the axis nor on the solenoid's cross-sectional area. This is a derivation of the magnetic flux density around a solenoid that is long enough so that fringe effects can be ignored.

7. Houston man charged for electricity usage during a power ...

   www.aol.com/finance/houston-man-charged...

   After a series of storms and tornadoes hit Houston in late May, more than 900,000 people lost power for several days. Yet, one resident, Craig Wolcott, received messages from Smart Meter Texas ...