Maxitrol’s 325 Series pounds to inches regulators are for use on residential, commercial, and industrial applications. The 325 Series features a high leverage valve linkage assembly to deliver positive dead-end lockup. The regulators are capable of precise control from full flow down to pilot flow.

Specifications:

• Pipe Sizes: 3/8” to 2” threaded connections with NPT or ISO7-1 threads.
• Housing Material: 325-3, 325-5, 325-7A, 325-9: aluminum.
• Mounting: Suitable for multi-positional mounting. If ball check vent limiting device is installed, mount in an upright position only.
  NOTE: All Maxitrol gas pressure regulators should be installed and operated in accordance with Maxitrol Safety Warning Instructions.
• Certifications: 325-3, 325-5: ANSI Z21.18/CSA 6.3 Gas Appliance Pressure Regulators.
• Gas Types: Suitable for natural, manufactured, mixed gases, liquefied petroleum gases, and LP gas-air mixtures.
• Maximum Inlet Pressure: CSA Certified: 325-3, 325-5: 2 psi (13.8 kPa), 5 psi (34.5 kPa) Maxitrol Tested: 325-3, 325-5, 325-7A, 325-9: 10 psi (69 kPa) With Vent Limiter 12A09, 12A39, or 12A49 Installed: 325-3, 325-5, 325-7A, 325-9: 5 psi (34.5 kPa) - Natural, 2 psi (13.8 kPa) - LP
• Emergency Exposure Limits: 65 psi (450 kPa) (inlet side only)
• Maximum Individual Load: Largest single appliance served by the regulator: 325-3: 100,000 Btu/h; 325-5: 325,000 Btu/h; 325-7A: 1,250,000 Btu/h, 325-9: 2,250,000 Btu/h
• Capacity: Total load of multiple appliances combined: 325-3: 150,000 Btu/h; 325-5: 325,000 Btu/h; 325-7A: 1,250,000 Btu/h; 325-9: 2,250,000 Btu/h
  NOTE: Capacities are used to determine the maximum multiple appliance load. The largest single appliance served by the regulator should not exceed the maximum individual load specified above.
• Ambient Temperature Ranges: -40 to 205°F (-40 to 96°C)
• Minimum Regulation: Suitable for pilot flow applications. (Circle P) (0.15 CFH NG), None (1.5 CFH NG).
  Imblue Technology™ 325-3, 325-5, 325-7A, 325-9 models may be ordered with Imblue Technology™. Imblue Technology™ increases corrosion resistance and provides extra protection against the elements for regulators used in outdoor applications. Add suffix letter “B” to model number when ordering.