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2015 Maxitrol Company. All Rights Reserved. DRAFT 09.18.2013 14 Pipe Sizes...................................... 38 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 see GPR_MI_EN.ES or GPR_CSA_MI_EN.FR. Certifications................................ 325-3 325-5 ANSI Z21.18CSA 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 100000 Btuh 325-5 325000 Btuh 325-7A 1250000 Btuh 325-9 2250000 Btuh Capacity.......................................Total load of multiple appliances combined 325-3 150000 Btuh 325-5 325000 Btuh 325-7A 1250000 Btuh 325-9 2250000 Btuh 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 205F -40 to 96C 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. Maxitrols 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. 325 SERIES Lever Acting Design 325-3 Specifications