Hydraulic valves contain and transfer the flow and pressure of hydraulic fluid in hydraulic power systems. They range from simple shutoff valves to precision control valves. In their unpowered state, ...

Flow is controlled by either throttling or diverting it. Throttling involves reducing orifice size until all of the flow cannot pass through the orifice; bypassing involves routing part of the flow ...

• The first step in selecting a valve is determining its function. • Review Cv or pressure drop when considering one valve versus another. • Don’t overlook maintenance requirements when specifying a ...

Vacuum valves are used when a vacuum must be maintained in a closed system. Vacuum valves are used to control gas flow into a chamber, isolate, vent, provide relief or control conductance. Gate, ...

Like so many of the core technologies integral to automated industrial operations—such as motors, drives, and I/O—valves don’t always receive the attention they deserve in the automation arena.

It is possible to choose several types of liquid valves. Each has advantages as well as disadvantages. In general, a two-way valve is selected for applications that require the stopping and starting ...