Start, Stop or Change Direction of Hydarulic Actuators Using Zero-Leak Rotary Spool Control Valves - Video

180 Series Rotary directional control valve
https://en.webtec.com/products/HDCV_180

280 Valve Stainless Steel Rotary Control Valve
https://www.webtec.com/products/HDCV_280

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A 4-port rotary spool type directional control valve, ideal for permitting the start, stop or directional change of fluid under pressure.