ASCO Solenoid Valves (SIL3 NACE ATEX NAMUR Valves)ASCO 551 Solenoid Valves (Spool) 3/2 NC, ¼” Brass (15/16 Pilots) – Hazardous Area Valve Ex d, Ex mb, Ex e mb, Ex ia, NEMA
ASCO 551 hazardous area solenoid valves are pilot operated or air operated spool type valves suitable for hazardous areas installation with international classifications including ATEX, UL, CSA and other local approvals on…









