Numatics 551-553 Series

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SOLENOID VALVES pilot operated, spool type single/dual solenoid (mono/bistable function) aluminium body, 1/4 - 1/2

Manufacturer: Asco Numatics
Valve Type: Solenoid & Switches
Sub-Type: Valves & Fieldbus
All the exhaust ports of the spool valve are connectable, providing better environmental protection. Particularly recommended for sensitive areas, such as clean rooms.
The valves offer environmental protection against the ingress of liquids, dusts or other foreign matter (environmentally-protected construction)
Can be externally piloted (external air pilot supply) to convert valve to zero minimum operation by flipping a gasket
The monostable spool valves in conformity with IEC 61508 Standard (2010 route 2H version) have TÜV (551 series) and EXIDA (551-553 series)
Certified with integrity levels: SIL 2 for HFT = 0 / SIL 3 for HFT = 1
The solenoid valves satisfy all relevant EU directives