Overview
The Asco 8210G055 is a 2-way, normally closed pilot-operated solenoid valve designed for high-flow general service applications. This valve features a normally closed, pilot-operated design with a brass body, offering high-flow capabilities for air, water, and light oil systems. Designed to handle pressures up to 150 psi, this valve is ideal for pumps, chemical processing, and water control systems where automatic flow regulation is required, particularly in high-volume applications.
Key Features
- 2-way, normally closed, brass body with 1-1/4FPT x 1-1/8in orifice
- Fail-closed design: automatically shuts off when power is lost, ensuring system safety
- Rated for 150/150/125 psid max at 180°F for air/water/light oil service
- High flow capacity: perfect for large-scale fluid control in industrial systems
- Compliant to NSF/ANSI 372 low lead requirements
- Industrial applications include car wash equipment, air compressors, pumps, laundry equipment, and industrial water control
Technical Specifications
- Valve Type: 2-way, pilot-operated, normally closed
- Port Size: 1-1/4″ pipe size, 1-1/8″ orifice
- Flow Coefficient: Cv=15
- Body Material: Brass with Buna N elastomer seals
- Maximum Pressure (psi): Air=150, Water=125, Light Oil=125
- Maximum Temperature: 180°F
- Minimum Operating Pressure: 5 psid (35 kPa)
- Enclosure Rating: NEMA 1, 2, 3, 3S, 4, and 4X (Red Hat II standard)
- Certifications: UL Listed, CSA Certified, FM Approved, meets applicable CE Directives
- Series: Asco 8210 General Service
- Coil Configuration: Available in multiple AC/DC voltages (specify when ordering)
Typical Applications
Industrial applications include car wash equipment, air compressors, pumps, laundry equipment, and industrial water control. The Asco 8210G055 is well-suited for:
- Pneumatic and hydraulic system control
- High-volume fluid regulation and shut-off
- Industrial process automation
- Water and air compression systems
- Chemical and light oil processing
- Automatic on/off control for pumps and motors
Compatibility & Replacements
Compatible With
- Standard NPT (National Pipe Thread) port connections
- Air, water, light oil, and inert gas systems
- Industrial pneumatic and hydraulic circuits
- Pressure ranges 5 to 150 psi (varies by fluid type)
- NEMA-rated electrical enclosures (NEMA 1, 2, 3, 3S, 4, 4X)
- Standard 24 AC, 110 AC, 115 AC, 120 AC, 208 AC, 220 AC, 230 AC, 240 AC, and DC voltage solenoid coils
Replaces / Drop-In Replacement For
The Asco 8210G055 with 1-1/4″ NPT ports and normally closed 2-way configuration serves as a direct replacement for equivalent pilot-operated solenoid valves in the Asco 8210 series. Verify compatibility with your system integrator before ordering for other models.
Works With
- Pilot-operated valve control circuits and regulators
- Standard industrial PLC systems (Allen-Bradley, Siemens, Mitsubishi, Omron)
- Pneumatic and hydraulic manifold assemblies
- Solenoid valve rebuild kits (Asco 302283 recommended)
- General purpose and explosion-proof enclosures
















