BASO H91DA-8 REVB Gas Valve

The BASO H91DA-8 REVB is a heavy-duty 1/2" NPT manual reset gas valve engineered for industrial commercial gas applications requiring reliable safety shut-off. Operating at 120V AC, this solenoid-actuated gas valve serves as a direct, updated replacement for the original H91DA-8 model, ensuring seamless integration into existing commercial boiler controls and furnace systems. Built for durability in demanding environments, it handles natural gas and liquid propane (LP) with a capacity of up to 230,000 BTU/hr at 1" pressure drop. Its manual reset functionality provides an essential safety layer for commercial kitchen equipment and process heating, preventing automated restarts after power loss or safety interruptions. Field technicians rely on the H91DA series for its rugged internal components and multi-position mounting flexibility, which simplifies installation in tight mechanical rooms. When replacing older low-pressure gas control valves, the REVB version maintains the exact footprint while offering enhanced coil resilience against voltage fluctuations.

• Universal Compatibility: Optimized for use with natural gas and vapor LP gas in high-output commercial systems.
• Manual Reset Safety: Prevents uncontrolled restarts after safety circuit interruptions, a critical requirement for specific HVAC mechanical codes.
• Robust Solenoid Design: The 120V solenoid coil provides high-torque actuation for consistent valve opening against gas pressure.
• Direct Drop-in Replacement: Specifically designed to replace the legacy H91DA-8 without requiring pipe manifold modifications.
• High Flow Capacity: Delivers high BTU throughput with minimal pressure drop, maintaining peak appliance efficiency.

What is the difference between the H91DA-8 and the H91DA-8 REVB?
The REVB is the current production standard from BASO, featuring updated internal manufacturing tolerances. It remains 100% backwards compatible in fit, form, and function for any 120V 1/2" gas valve application previously using the H91DA-8.

Can this valve be mounted in any orientation?
While BASO H91 valves are robust, for optimal longevity and to prevent debris from fouling the seat, it is standard practice to mount the valve with the solenoid in the upright vertical position if possible.

Why is my BASO H91DA-8 valve not staying open?
Common issues include a lack of 120V power to the coil or a failure to properly engage the manual reset mechanism once power is applied. Verify the line voltage at the terminals before identifying the valve as the failure point.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.