The Asco 8040G021 Solenoid Valve (8040G21) is a normally closed, direct-acting valve engineered for safe shutoff of fuel gases in burner control systems. It is ideal for pilot and main gas flow applications in commercial boilers, ovens, and industrial combustion systems requiring dependable low-pressure shutoff performance.
Technical Specifications
- Valve Type: Direct Acting, Normally Closed, 2-Way
- Pipe Size: 3/8″ NPT
- Flow Factor (Cv): 3.9
- Gas Capacity: 210,000 Btu/hr
- Operating Pressure Differential:
- Minimum Operating Pressure: 0 psi
- Maximum Operating Pressure: 2 psi
- Maximum Fluid Temperature: 125°F (52°C)
- Body Material: Aluminum
- Seal Material: NBR
- Voltage Options:
- AC (60Hz): 24, 120, 240V
- AC (50Hz): 110, 220V
- Watt Rating:
- AC: 10.1 watts
- Coil Insulation Class: F
- Solenoid Enclosure:
- Standard: RedHat II molded epoxy, Types 1, 2, 3, 3S, 4, and 4X
- Optional: Explosionproof and Watertight, Types 3, 7(C and D), and 9
Key Features and Functionality
- Low-Pressure Rated: Operates from 0 to 2 psi inlet pressure.
- Quick-Acting Performance: Less than 1 second open and close time.
- Direct Acting Valve: No pressure differential required.
- Compact Fuel Gas Control: Ideal for pilot or small main burners.
- Flexible Mounting: The valve can be mounted in any position.
Compatible Components and Related Parts
- ASCO RedHat II Coil Series
- ASCO Mounting Brackets
- ASCO Seal Kit for 8040 Series
- ASCO Explosionproof Solenoid Enclosure
Industry Applications
- Gas Burner Ignition: Controls fuel to pilot burners.
- Boiler Safety Control: Integrated into combustion shutoff logic.
- Ovens and Furnaces: Provides shutoff for low-pressure gas feeds.
- Packaged Burner Systems: These are Common in OEM gas trains.
- HVAC Heating Systems: Manages safe gas supply.
Compliance and Approvals
- UL Listed
- CSA Certified
- FM Approved
Installation and Operational Notes
- Includes upstream and downstream 1/8″ NPT test ports with plugs.
- For use with clean, dry fuel gases only.
- Match the coil voltage to the nameplate rating during installation.
- The explosionproof version is available with the EF prefix.
- Ensure that the gas flow follows the arrow stamped on the body.
Series Catalog
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