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Load Control (Checks) - Inline Pilot Check (4 Port)
Pilot-to-open check cartridges are non-modulating, on-off devices that allow free flow through a check valve from port 2 (VLV) to port 1 (CYL) and then block reverse flow until a pilot pressure is sensed at port 3 (PILOT) so that a pilot piston can push the check off its seat. These Inline versions have 4 ports so are internally Piloted. Capacities from low to 120LPM.