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ASCO Spool Valve - 551 Series - Pneumatically Operated

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The ASCO Series 551 Spool Valves are available as pilot operated or solenoid air operated, spool type single/dual solenoid or air (mono / bistable function) with an aluminium body and NAMUR style. They are available in 3/2 and 5/2 for controlling double acting and single acting actuators as well as 5/3.


Suitable media: air or inert gas, filtered, lubricated and non-lubricated.


Port Sizes: 1/4" (1/2" available on request for the ASCO Series 553)


Temperature range: -25C to +60C


Seals: NBR (nitrile) and PUR (Polyurethane)

Description

Details

The ASCO Series 551 Spool Valves are available as pilot operated or solenoid air operated, spool type single/dual solenoid or air (mono / bistable function) with an aluminium body and NAMUR style. They are available in 3/2 and 5/2 for controlling double acting and single acting actuators as well as 5/3. Suitable fo air, inert gas, filtered, lubricated and non-lubricated. Resistant to harsh environments due to it's "non-breathing" design and threaded and NAMUR construction.

Sizes: 1/4" (1/2" available on request for ASCO Series 553 Spool Valves)

Temperature range: -25C to +60C

Seals: NBR (nitrile) and PUR (Polyurethane)

Aluminium body, with brass and 316L stainless steel body options

Global Certification including: ATEX, CUTR, UL, SIL

FEATURES

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 spool valves have threaded port connections and "NAMUR" style interface

The same spool valve can be adapted for 3/2 NC or 5/2 functions for controlling double-acting and single-acting actuators

All the exhaust ports of the spool valve are connectable, providing better environmental protection.Particularly recommended for sensitive areas, such as clean rooms, and
applications in the pharmaceutical and food processing sectors

The valves offer environmental protection against the ingress of liquids, dusts or other foreign matter (environmentally-protected construction)

Epoxy moulded coil for general service applications

The solenoid valves satisfy all relevant EU Directives

Technical

Additional Information

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Product Specification PDF Download
Applications Covering product codes SCG551 SCG551A001.110/50 SCG551A001MMS.115/50 SCG551A001SL.24/50-60 SCG551A001SL.48/50-60 SCG551A001SL.230/50-60 SCG551A001SL.24/DC SCG551A001SL.48/DC SCG551A001MS.115/50 SCG551A001MS.120/60 SCG551A001MS.24/50-60 SCG551A001MS.48/50-60 SCG551A001MS.230/50-60 SCG551A001MS.12/DC SCG551A001MS.24/DC SCG551A001MS.48/DC SCG551A001MS.110/DC SCG551A001.24/50-60 SCG551A001.48/50-60 SCG551A001.230/50-60 SCG551A001.24/DC SCG551A001.48/DC SCG551A001M.24/50-60 SCG551A001M.48/50-60 SCG551A001M.230/50-60 SCG551A001M.48/DC SCG551A001MMS.48/50-60 SCG551A001MMS.230/50-60 SCG551A001MMS.24/DC SCG551A001MMS.48/DC SCG551A002.48/DC SCG551A002MS.115/50 SCG551A002MS.24/50-60 SCG551A002MS.48/50-60 SCG551A002MS.115/50-120/60 SCG551A002MS.230/50-60 SCG551A002MS.24/DC SCG551A002MS.48/DC SCG551A002.24/50-60 SCG551A002.48/50-60 SCG551A002.230/50-60 SCG551A002.24/DC SCG551A002MMS.24/50-60 SCG551A002MMS.48/50-60 SCG551A002MMS.230/50-60 SCG551A002MMS.24/DC SCG551A002MMS.48/DC SCG551A002MMS.110/DC SCG551A005SL.24/50-60 SCG551A005SL.48/50-60 SCG551A005SL.230/50-60 SCG551A005SL.24/DC SCG551A005SL.48/DC SCG551A005MS.115/50 SCG551A005MS.24/50-60 SCG551A005MS.48/50-60 SCG551A005MS.230/50-60 SCG551A005MS.24/DC SCG551A005MS.48/DC SCG551A005.24/50-60 SCG551A005.48/50-60 SCG551A005.230/50-60 SCG551A005.24/DC SCG551A005.48/DC SCG551A006MS.24/DC SCG551A017MS.115/50.120/60 SCG551A017MS.125/DC SCG551A017.12/DC SCG551A017SL.24/50-60 SCG551A017SL.48/50-60 SCG551A017SL.230/50-60 SCG551A017SL.24/DC SCG551A017SL.48/DC SCG551A017MS.115/50 SCG551A017MS.120/60 SCG551A017MS.24/50-60 SCG551A017MS.48/50-60 SCG551A017MS.230/50-60 SCG551A017MS.24/DC SCG551A017MS.48/DC SCG551A017.24/50-60 SCG551A017.48/50-60 SCG551A017.230/50-60 SCG551A017.24/DC SCG551A017.48/DC SCG551A018MS.120/60-115/50 SCG551A018MS.115/50 SCG551A018MS.115/50-60 SCG551A018MS.24/50-60 SCG551A018MS.48/50-60 SCG551A018MS.230/50-60 SCG551A018MS.12/DC SCG551A018MS.24/DC SCG551A018MS.48/DC SCG551A018.24/50-60 SCG551A018.48/50-60 SCG551A018.230/50-60 SCG551A018.24/DC SCG551A018.48/DC SCG551A065MS.24/DC SCG551A067MS.115/50 SCG551A067MS.24/50-60 SCG551A067MS.48/50-60 SCG551A067MS.230/50-60 SCG551A067MS.12/DC SCG551A067MS.24/DC SCG551A067MS.48/DC SCG551A068MS.24/DC SCG551A313.24/DC SCG551A322.24/DC SCG551A404.230/50 SCG551A409.24/DC SCG551A419.24/DC LISCG551B201.24/DC LISCG551B201SL.24/DC

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