These directional control valves offer hydraulic directional control and long-term dependability for steel and aluminum production. The Combo valve is a spool-type valve that incorporates an NFPA mounting interface and interfaces with Hunt Valve’s mod-stack cartridge valves. The MVO34 is a rugged, hollow bore-plunger valve that can operate in extremely dirty applications where filtration is minimal. The HPP poppet directional control valve utilizes zero- leakage seat technology that is controlled by a ceramic spool.