ELECTROMAGNETIC VALVE Russian patent published in 2003 - IPC

FIELD: pipeline valves and fittings. SUBSTANCE: invention relates to electromagnetic valves furnished with shutoff member extreme position indicators. Proposed electromagnetic valve contains housing with working space inside, shutoff member placed inside said space and extreme position indicator of shutoff member provided with tie-rod rigidly coupled with drive armature. Tie-rod is arranged axially symmetrically relative to armature and is furnished with permanent magnet. Said tie-rod is placed in chamber connected by bypass line with working space zone located under shutoff member. Chamber is isolated from working space zone located over shutoff member by seal installed around armature. EFFECT: increased economy of drive owing to releasing of valve provided with working member extreme position indicator. 4 cl, 1 dwg