All-purpose ZE proportional valves for open loop electrohydraulic systems feature a cURus certified threaded solenoid; corrosion protection to withstand more than 200 hr of salt spray, and the ability to operate in environments from –40° to 70°C. Spools feature linear, progressive, or differential regulation. Sizes 6 and 10 have direct-operated directional controls; size also available with direct-operated relief and reducing controls. Optional mobile connectors rated for IP-67 protection.