The ASCO Series 551, 552, 553 Pilot Operated or Air Operated Spool Valves are reliable and durable control solutions for a variety of industrial and commercial applications. These valves are made with aluminium bodies and feature all-connectable exhaust ports that provide enhanced environmental protection, making them particularly well-suited for use in sensitive areas such as clean rooms and in the pharmaceutical and food processing sectors. They offer protection against the ingress of liquids, dust, and other foreign matter, and are compliant with the IEC 61508 Standard. The monostable spool valves in the ASCO Series 551, 552, 553 are certified by TÜV and EXIDA with integrity levels of SIL 2 for HFT = 0 and SIL 3 for HFT = 1. These solenoid valves are reliable and durable control solutions that meet all relevant EC directives.
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