ROSS Controls 2176B4001 Directional Control Valve

ROSS Controls 2176B4001 Directional Control Valve is an inline-mounted valve in the Classic 21 Series designed to route compressed air in pneumatic circuits. The 2176B4001 family supports 2/2 and 4/2 configurations, with port sizes listed as 3/4" and 1" (NPT) for the body size 3/4" variant, and it uses standard NPT port threads. Cv ratings for this model are reported around 5.7 to 6.5 depending on port size, and the valve weight ranges roughly from 3.0 lb to 5.8 lb, reflecting the different port-size variants. The model numbers in this inline-mounted family include 2176B4001 and 2176B4002, with 2176B4001 positioned as the primary non-safety variant and 2176B4002 as a closely related size option. For temperature variants, the 2176B4001W designation denotes Low/High Temperature operation within the Classic 21 Series, and the 2176B4001W-N variant indicates hazardous-location suitability. All versions are documented with the same foundational inline-mount geometry and port-thread standard (NPT), making cross-compatibility within the family feasible for many standard pneumatic installations.