The Asco 8044A7CSA Solenoid Valve is a 3-inch manual reset shutoff valve specifically designed for high-flow fuel gas control at low pressures. It features a free handle lockout mechanism, which ensures that gas flow does not resume after a power interruption unless the valve is manually reset. This design provides maximum safety for large fuel systems and combustion trains.
Technical Specifications
- Valve Type: Manual Reset, 2-Way, Normally Closed
- Pipe Size: 3″ NPT
- Operating Pressure Differential:
- Minimum Operating Pressure: 0 psi
- Maximum Operating Pressure: 10 psi
- Body Material: Aluminum
- Seal Material: NBR
- Voltage: 120V AC
- Solenoid Enclosure:
- Standard: NEMA 1 General Purpose
Key Features and Functionality
- Manual Reset Safety: Requires operator action to reopen after trip.
- Free Handle Lockout: Prevents automatic valve reopening on power-up.
- Low Pressure Rated: Designed for 0–10 psi fuel gas systems.
- Large-Diameter Flow Control: Suited for 3″ pipelines and high gas volume.
- Fast-Acting Shutoff: Valve closes immediately when power is lost.
Compatible Components and Related Parts
- ASCO RedHat Coils
- ASCO Reset Handle Kits
- ASCO Seal Kits for 8044 Series
- ASCO Manual Override Assemblies
Industry Applications
- Fuel Supply Trains: Interrupts gas to burners when the control signal is lost.
- Thermal Process Equipment: Cuts fuel to ovens during safety events.
- Utility Plant Startups: Ensures gas flow cannot resume without a reset.
- Combustion Control Panels: Prevents gas admission until system verification.
- Gas Manifold Isolation: Safely halts flow during service or shutdown.
Compliance and Approvals
- UL Listed
- FM Approved
- CSA Certified
Installation and Operational Notes
- Install in vertical orientation for reliable operation.
- Trip-close function activates automatically on power failure.
- Reset requires both restored power and manual action.
- For use in fuel gas service only — not rated for liquids.
- The handle must be reset to neutral before the valve can open.
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