Ross Controls 473K91 Manifold Base 1/2 NPT Port

Ross Controls 473K91 Manifold Base is a compact sub-base designed to accept base-mounted valve stations, enabling a slim, modular multi-station pneumatic manifold. This base type places all ports at the end for clean routing and uses 1/2" NPT threads for every connection—inlet, outlet, and exhaust—while delivering a 2.5" body size footprint. It provides end-port configuration with zero built-in indicator lights, minimizing intrusion in tight installations. Electrical actuation is supported, with coil voltage options listed as 24 VDC or 110–120 VAC, aligning with common industrial control practices. The 473K91 is intended to mate with Ross 95-series base-mounted valves to form compact manifolds where space is at a premium, making it suitable for pneumatic control applications that require reliable, modular stationing of multiple actuators. By standardizing the 1/2" NPT porting across supply, exhaust, and work ports, this sub-base simplifies piping and fittings and supports interchangeability within the Ross platform, reducing layout complexity and easing maintenance in modular control systems.