ROSS Controls W377B91 Sub Base Valve Side-Ported

ROSS Controls W377B91 Sub Base Side-Ported is a compact ANSI-compatible sub-base designed to mount beneath base-mounted directional valves in the Ross W70/W74 family, delivering a side-port configuration that simplifies plumbing in tight spaces. Key specifications verify ANSI Size 1; side-ported port location; outlet port 1/4" (NPT); Cv 0.9–1.0; overall dimensions approximately 2.8" long x 1.6" wide x 6.2" tall (72 x 41 x 157 mm). The sub-base ships with the hardware and seals needed for assembly and uses standard NPT port threads; SAE variants may require a different sub-base at ordering. This sub-base is part of the standard line of base-mounted valve components offered by ROSS Controls, enabling a clean interface between a valve body and the actuator or manifold system, and is suited for compact pneumatic circuits where a side-port layout is desirable.