Description
The Maxitrol RV91-2-1/2 Straight-Thru-Flow Gas Pressure Regulator is a high-capacity appliance regulator engineered for low pressure natural gas or LP applications in commercial and industrial HVAC systems. This regulator features a 2-1/2″ NPT connection and is CSA certified for up to ½ PSI maximum inlet pressure, providing a stable 3–6 inches water column outlet suitable for large burners and equipment. Its straight-thru-flow design reduces internal flow resistance for greater capacity and sensitive pressure regulation across varying operating conditions. Ideal for HVAC technicians, boiler installers, and service contractors, it supports consistent gas delivery and improved combustion performance. This unit is often used on main burner gas trains where effective pressure regulation is critical for safe and efficient operation.
Key Features
- Designed for use with natural gas or LP in low-pressure systems (up to ½ PSI)
- 2-1/2″ NPT connections for high capacity appliance installations
- Straight-thru-flow regulator design for reduced resistance and improved flow capacity
- Certified to meet ANSI/CSA safety and performance standards
- Ideal for large furnaces, boilers, rooftop units, or other gas-fired HVAC equipment requiring stable regulation
