Overview
The Numatics 228-703B is a precision solenoid valve coil designed for integration with Mark 8 Series pneumatic valve systems. Operating at 0.15 amperes with dual voltage/frequency ratings (100-115V AC/50Hz and 110-120V AC/60Hz), this coil provides reliable electromagnetic actuation for fluid and gas control applications. Manufactured by ASCO Numatics, a trusted name in pneumatic automation, the 228-703B delivers consistent, dependable performance across industrial environments and is CSA certified for safety compliance.
Key Features
- Dual voltage/frequency rated: 100-115V AC/50Hz and 110-120V AC/60Hz operation
- Low current draw: 0.15 amperes for efficient integration with control circuits
- Direct replacement for Mark 8 Series solenoid valves
- CSA certified for safety and regulatory compliance
- Compact, standard solenoid coil design for field replacement and troubleshooting
- Suitable for pneumatic, hydraulic, and general fluid/gas control systems
Technical Specifications
- Maximum Operating Pressure: 150 PSIG (air)
- Coil Current: 0.15 amperes
- Voltage Rating (Primary): 100–115V AC, 50 Hz
- Voltage Rating (Secondary): 110–120V AC, 60 Hz
- Port Sizes: 1/2″ and 3/4″ NPT (standard pneumatic/hydraulic threading)
- Operating Temperature Range: –10°F to +115°F (–23°C to +46°C)
- Pilot Pressure Range: 20–115 PSIG (1.5–8 bar)
- Mounting: Standard DIN/manifold-compatible footprint
- Weight: 0.30 lbs
- Certifications: CSA Certified
Typical Applications
- Pneumatic control systems requiring solenoid valve coil replacement
- Industrial automation equipment with Mark 8 Series valve banks
- Compressed air distribution networks in manufacturing plants
- Fluid/gas control circuits in packaging, assembly, and material handling systems
- Maintenance and field repair of existing solenoid valve installations
Compatibility & Replacements
Compatible With
- ASCO Numatics Mark 8 Series solenoid valves
- Pneumatic and hydraulic manifold systems rated for 150 PSIG
- Industrial control circuits operating at 50 Hz or 60 Hz
- Standard DIN-mounted solenoid valve bases
Replaces / Drop-In Replacement For
- Numatics 228-703 (base model)
- 081SA400K000030 (Numatics equivalent assembly)
- 081SS400K (original replacement designation)
Works With
- Numatics / ASCO pneumatic control systems
- 24 VDC and AC solenoid valve circuits (when integrated via control boards)
- Standard industrial PLC and automation controllers
- Compressed air and inert gas applications complying with ISO 4401 manifold standards
