The Ross Controls 7776A4400 is a CrossMirror Double Valve in the 77 Series, a 5-port, 4-way, 2-position solenoid-pilot controlled valve equipped with two independent coils for dual output paths. Designed for safety-related machinery applications, it uses a 3/4 in (SZ4) port size and is suitable for interlock and two-hand control scenarios in pneumatic systems. Weighing about 11.2 lb (5.1 kg) in the 3/4 in variant, it commonly employs the EN 175301-803 Form A solenoid coil connection and shares the standard 77 Series construction that supports robust, quick-actuation switching between ports 2–3 and 4–5.
