Directional valves such as Parker Hannifin's B3G-Series threeway (left) and four-way valves are often used to control pneumatic operations. Directional-control valves are vital in any pneumatic ...

Poppet-style three and four-way directional-control valves are solenoid actuated and suited for applications with pressures to 5,000 psi (340 bar), where pressure and flow are intermittent.