Explosion-proof electrohydraulic proportional valves limit external temperature, to avoid self-ignition of any explosive mixtures in the environment. They are tested and certified according to ATEX 94/9/CE standard protection mode, UL 1002 American Standards, Class I, Groups C&D, and Gosgortehnadzor Russian Certification for Group II solenoids.
Atos Systems, (951) 637-2497, www.atos.com