For years the fluid power industry has used the cartridge valve as a way to manifold multiple valves into one space saving, pipe-and-fitting saving, installation-labour-saving assembly. Now process valve users can benefit in similar fashion even when controlling abrasive, non-lubricating fluids, pastes, gels and all types of gases. Cartridge valves are designed for simple, easy integration into machines, pumps and systems, and allow quick and easy replacement without disturbing system piping. They also eliminate pipe and fittings, reducing potential leak points. As the cartridge manifolds typically use common inlets or discharge piping, installation labour is greatly reduced since the pipe-fitter has only one assembly to mount and pipe, instead of multiple valves. This manifold mounting also provides space savings since multiple valves and their supply and discharge piping are eliminated in favour of a single cartridge valve manifold. Co-ax cartridge valves are designed to be a cost-effective method of saving space and reducing cost.