Ross Controls 2768C4904 Pilot Operated Check Valve

Ross Controls 2768C4904 is a 27 Series inline pilot-operated check valve designed for reliable load holding in pneumatic systems. This 2‑way, 2‑position valve uses a pneumatic pilot signal to open and close the main flow path, enabling remote actuation and positive lock when the pilot is released. Main ports are 1/2 in NPT, with a 1/8‑27 NPT signal port for the pilot supply; the valve offers a Cv of 3.2 and weighs about 2.4 lb, making it suitable for compact panel‑mount installations. As a pilot-operated check, it provides rapid response and pressure-controlled hold, ideal for holding cylinder positions, clamps, and other actuators where maintaining a load without continuous power is required. Designed for inline mounting, it integrates with standard 1/2 in NPT fittings and common pilot lines, and is part of the Ross Controls PO Check Valves family, a line known for load-holding and controlled backflow in pneumatic circuits.