The Maxitrol 325-7AB-1 1/4 is a heavy-duty, lever-acting gas pressure regulator engineered for high-capacity commercial and industrial gas distribution applications. Featuring a robust 1-1/4″ NPT connection, this regulator delivers reliable downstream pressure control with a wide outlet pressure range of 4–12″ w.c. and handles up to 1,250,000 BTU/hr of gas flow capacity — making it an ideal solution for demanding heating systems, commercial kitchens, and large-scale gas appliances.
Key Features
- 1-1/4″ NPT inlet and outlet connections for straightforward installation into standard gas piping systems
- 10 PSI maximum inlet pressure rating for safe, code-compliant operation
- Adjustable outlet pressure range of 4–12″ w.c. to suit a variety of downstream appliance requirements
- Maximum capacity of 1,250,000 BTU/hr to support high-demand commercial and industrial gas loads
- Lever acting design provides precise, responsive pressure regulation across varying flow conditions
- Positive dead-end lock-up ensures zero downstream pressure creep when gas flow stops, protecting connected appliances
- Imblue Technology — Maxitrol’s proprietary corrosion-resistant internal coating that extends regulator service life and maintains consistent performance in harsh environments
Positive Dead-End Lock-Up
The 325-7AB-1 1/4 incorporates Maxitrol’s positive dead-end lock-up feature, which effectively seals off downstream pressure rise when appliances are off or in standby. This protects sensitive gas valves and burner components from over-pressurization during no-flow conditions.
Imblue Technology
Maxitrol’s exclusive Imblue Technology applies a corrosion-inhibiting treatment to internal regulator components, guarding against moisture, condensation, and contaminants commonly found in natural gas and LP gas supply lines. The result is a longer service life and more consistent pressure regulation over the life of the product.
Specifications
- SKU: 325-7AB-1 1/4
- Brand: Maxitrol
- Connection Size: 1-1/4″ NPT
- Maximum Inlet Pressure: 10 PSI
- Outlet Pressure Range: 4–12″ w.c.
- Maximum Capacity: 1,250,000 BTU/hr
- Actuator Type: Lever Acting
- Lock-Up: Positive Dead-End
- Special Feature: Imblue Technology corrosion-resistant coating
Applications
- Commercial and industrial gas distribution systems
- High-capacity heating equipment and boilers
- Commercial foodservice and kitchen equipment
- Large gas-fired appliances requiring precise pressure regulation
- Replacement or upgrade of existing 1-1/4″ NPT gas regulators
