ASCO SCG551A001MS.24/50-60 - 3/2, 5/2 Pneumatic Spool Valve, G1/4, 24V AC, Series 551

ASCO Joucomatic spool valve SCG551A001MS. With series 551 all exhaust ports are connectable as a result providing better environmental protection.

We recommend this product for sensitive areas, such as clean rooms and applications in the pharmaceutical and food processing sectors.

This series provides environmental protection against the ingress of liquids, dusts or other foreign matter. This valve has threaded port connections and a NAMUR interface.

To conclude, the same spool valve can be adapted for 3/2 NC or 5/2 functions for controlling double / single acting actuators.

Product Reference: SCG551A001MS.24/50-60

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Features

• The solenoid operated spool valves have threaded port connections and NAMUR interface
• 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
• Offer environmental protection against the ingress of liquids, dusts or other foreign matter (environmentally-protected construction)
• Monostable spool valves in conformity with IEC 61508 Standard (2010 route 2H version) have TÜV (551 series) and EXIDA (551-552-553 series) certified with integrity levels: SIL 2 for HFT = 0 / SIL 3 for HFT = 1
• Importantly solenoid valves satisfy all relevant EC directives

Installation of Spool Valve SCG551A001MS

• The valves can be mounted in any position without affecting operation
• 3/2 NC-5/2 spool valve supplied with two interface plates with NAMUR mating surfaces. Depending on function (3/2 NC or 5/2), position one of the two plates on the spool valve body before installing on actuator
• Do not connect the pressure supply to the exhaust port 3. The “environmentally-protected” construction is not adapted for NO function. Contact us for function available in specific version
• Dowel pin (if necessary), bolts and gaskets are standard supplied
• It is necessary to connect pipes or fittings to the exhaust ports to protect the internal parts of the spool valve and its pneumatic operator if used outside or in harsh environments (dusts, liquids etc.)
• IEC 61508 Functional Safety (suffix SL). Check temperature range of valve body and solenoid for suitability. For probability of failure, contact us
• Threaded pipe connection is standard: G = G (ISO 228/1)
• A Valve with the suffix “SL” will be supplied with specific exhaust protector.
• Each valve will come with installation/maintenance instructions included.