Industrial 654K91 Sub Base Mounting Plate Assembly

Ross Controls' 654K91 Sub Base Mounting Plate Assembly is a single ISO 5599/I Size 1 sub-base with a side-ported configuration designed for base-mounted directional control valves. As a dedicated sub-base, it provides the mounting interface between a valve body and the base, enabling compact valve banks and straightforward alignment in non-multiplate installations. The 654K91 features 1/8 NPT threaded ports for the primary supply/exhaust paths, aligning with standard pneumatic line connections in Ross' sub-base family. This part is listed in Ross catalogs as a side-ported sub-base model (654K91), and is part of the broader ISO 5599/I sub-base lineup used to outfit valve installations with modular base mounting. Typical applications include pneumatic control circuits in industrial automation where ISO 5599/I size 1 valves are implemented, such as compact valve stations, base-mounted spool valves, and lightweight manifold assemblies. When used with compatible valve bodies, the 654K91 serves as the foundational mounting plate that preserves alignment while providing access to feed and exhaust lines via standard pipe threads.