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Series 551 552 553 - ASCO 3/2, 5/2 Pilot Operated NAMUR Spool Valves G1/4-G1/2
ASCO series 551, 552, 553 pilot operated spool valves have all connectable exhaust port, this provides better environmental protection against hazardous areas. The spool valves are particularly recommended for sensitive areas, such as clean rooms and applications in the pharmaceutical and food processing sectors. The solenoid valves satisfy all relevant EC Directives.