BASO H91WA-4C REVB Pilot Valve

The BASO H91WA-4C REVB is a robust 120V pilot gas valve designed specifically for commercial and industrial intermittent pilot ignition systems. This BASO pilot valve features a 1/4" compression connection for reliable fuel delivery to the pilot burner assembly. As a direct replacement for H91WA-4, the REVB model incorporates a modified electrical connection to improve terminal security and wiring efficiency for HVAC contractors. Operating at 120 VAC, this solenoid-actuated valve manages the gas flow necessary to establish the pilot flame before the main burner cycle. Professionals often utilize this component in heavy-duty boiler systems and commercial water heaters where a failsafe pilot valve is required for safe sequence operations. The compact design ensures compatibility within tight burner vestibules, providing a reliable solution for gas furnace pilot valve repair and maintenance. Installation requires strict adherence to manufacturer pressure ratings and electrical grounding standards to ensure long-term field reliability.

Key Benefits

• Direct Replacement Logic: Engineered to replace the legacy H91WA-4 with updated electrical terminal configurations for faster field wiring.
• Standardized Fit: 1/4" compression inlet and outlet allow for seamless integration with standard aluminum or copper pilot tubing.
• High Voltage Compatibility: Dedicated 120V solenoid coil provides strong pull-in force for consistent valve seating and opening performance.
• Industrial Build Quality: Constructed to withstand the thermal stressors found in high-cycle commercial combustion environments.

Common Questions

Is the H91WA-4C REVB compatible with 24V systems?
No, this is a 120V pilot valve. Installing this on a 24V circuit will result in failure to actuate. Verify transformer output before installation.

How does this differ from the original H91WA-4?
The REVB designation indicates a modification on electrical connection points. The mechanical specifications and 1/4" compression fittings remain identical for drop-in physical replacement.

Can this valve be field-serviced or rebuilt?
BASO gas valves are precision-calibrated safety components. If the internal solenoid or seat fails, the entire unit should be replaced to maintain system integrity.

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.