Asco SC8551A1MS-24V Series 8551 1/4" NAMUR Pad Mount DIN Solenoid Spool Valve 24VDC

The Asco SC8551A1MS-24V is a Series 8551 pilot-operated inline spool solenoid valve designed for reliable pneumatic control in demanding industrial environments. Featuring a 1/4" NPT port connection with a 1/4" orifice, this valve mounts directly to NAMUR-standard actuator pads and connects via a DIN electrical connector for quick, secure wiring. The integrated manual operator allows for local valve actuation without electrical power, essential for commissioning, maintenance, and fail-safe operations.

Built with a black anodized aluminum body for corrosion resistance and long service life, this valve is rated for air and inert gas service at pressures from 30 to 150 PSI and temperatures up to 140°F. The open-frame coil carries a Class F insulation rating and draws only 3.0 watts at 24VDC. The spool design is convertible from 3/2 to 5/2 configuration, offering flexibility across different actuator and circuit requirements. An IP65 environmental rating ensures protection against dust and water ingress, making this valve suitable for both indoor and outdoor industrial installations.

Key Features:

• Series 8551 pilot-operated inline spool valve
• 1/4" NPT port connection with 1/4" orifice, 0.86 Cv
• NAMUR pad mount for direct actuator mounting
• DIN electrical connector for standardized wiring
• Manual operator included for local/override actuation
• Operating voltage: 24VDC, 3.0 watts, Class F coil insulation
• Pressure range: 30–150 PSI differential; max fluid temperature 140°F
• Body material: Black anodized aluminum
• Seals: NBR and Polyurethane (PUR)
• Convertible from 3/2 to 5/2 valve configuration
• Environmental rating: IP65 (NEMA 1, 2, 3, 3S, 4, 4X)
• Compatible media: Air and inert gases
• Mountable in any position
• Approvals: UL, CSA, CE

The Asco SC8551A1MS-24V is an ideal solution for actuator control in process automation, pneumatic systems, and industrial machinery where a compact, direct-mount spool valve with manual override capability is required.