BASO H91LG-9C REVB Gas Valve

The BASO H91LG-9C REVB Gas Valve is a professional-grade, two-wire electrically operated shutoff designed for high-demand gas-fired appliances. This 3/4" NPT automatic gas valve features a robust 485,000 BTU/hr capacity, making it a critical component for commercial boilers, industrial furnaces, and large-scale water heaters. As a direct replacement for H91LG-9, the REVB model ensures seamless integration into existing systems requiring 24V gas valve logic.

Built with a cast aluminum body and a spring-loaded seat disc, this normally closed on/off valve utilizes a bipolar magnetic operator to provide precise flow control under a maximum operating pressure of 0.5 psi. It is compatible with natural gas, LP, and LP gas-air mixtures, functioning reliably across a wide temperature range of -40°F to 175°F. For technicians performing a HVAC gas valve replacement, the H91LG-9C REVB provides the necessary multi-poise mounting flexibility and 1/4 inch quick-connect terminals for rapid field installation.

Key Benefits

• High-Capacity Throughput: Rated for up to 485,000 BTU/hr to support heavy-duty commercial heating applications.
• Precise Magnetic Actuation: The 24V bipolar operator ensures immediate response to thermostat demand signals.
• Universal Fuel Compatibility: Engineered for use with natural gas and propane (LP) systems.
• Rugged Construction: Durable aluminum housing resists corrosion in demanding mechanical room environments.
• Simplified Retrofitting: Standard 3/4" NPT inlet/outlet connections and compact footprint allow for straightforward pipe-fitting.

Common Questions

Can this valve be mounted in any orientation?
The H91LG series is typically designed for horizontal manifold mounting with the magnetic operator in the upright position, though it can be rotated up to 90 degrees from vertical to accommodate tight clearances.

Does this unit include a pilot tap?
The H91LG-9C REVB model typically does not feature a pilot tap; it is primarily used as an main burner shutoff valve in 24V control circuits.

Is a transformer required for operation?
Yes, this valve operates on 24V/25V nominal power and should be powered by an NEC Class 2 transformer to ensure proper current delivery to the magnetic operator.

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.