EXPLOSION-PROOF VALVE OPERATOR

摘要

A valve operator wherein a solenoid housing has a cylindrical side wall and integral bottom wall having an opening for receiving an armature sleeve assembly. The bottom wall of the solenoid housing is supported on a nut secured to the sleeve assembly and having a radially extending flange substantially coextensive with the bottom housing wall for providing a metal-to-metal connection therebetween, and means including an end closure for the top of the housing compressively clamping the bottom housing wall against the flange of the nut to form a flameproof gas cooling escape path.