Humphrey TAC3 air-piloted valves feature Delrin sleeve construction to reduce friction for smooth performance and long service life. Single air-pilot models employ a mechanical spring and a patented air spring to return the main stem.  Double air-pilot models maintain the last position automatically, preventing equipment damage when pressure is interrupted.

TAC3 air-piloted valves are 4-way, 5-port, 2 position valves having a common inlet and separate exhausts. Cylinder port #1 is normally open: cylinder port #2 is normally closed.  These valves can be mounted in any position with two 1/4" inch screws or directly in-line. They can also be mounted on Humphrey Model MC manifolds. Body ports are 1/4" inch. Pilot ports are 1/8" inch.