Brochure

DRAFT 09.18.2013

Pipe Sizes .................................. 3/8” to 2” threaded connections with NPT or ISO7-1 threads.

Housing Material ......................325-3L, 325-5L, 325-7AL, 325-9L: 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_CSA_2PSI_MI_EN.FR).

Certications ..............................325-3L, 325-5L, 325-7AL, 325-9L: ANSI Z21.80/CSA 6.22 Line Pressure Regulators.

Gas Types ..................................Suitable for natural, manufactured, mixed gases, liqueed petroleum gases, and LP gas-air

mixtures.

Maximum Inlet Pressure ...........2 psi (13.8 kPa)

Minimum Inlet Pressure ............ 1 psi (6.9 kPa)

Emergency Exposure Limits ....... 65 psi (450 kPa) (inlet side only)

Maximum Individual Load ........Largest single appliance served by the regulator: 325-3L: 140,000 Btu/h;

325-5L: 425,000 Btu/h; 325-7AL: 1,250,000 Btu/h; 325-9L: 2,250,000 Btu/h

Capacity ....................................Total load of multiple appliance combined

325-3L (3/8”, 1/2”): 250,000 Btu/h;

325-5L (1/2”): 500,000 Btu/h; 325-5L (3/4”, 1”): 600,000 Btu/h;

325-7AL (1 1/4”, 1 1/2”): 1,250,000 Btu/h; 325-9L (1 1/2”, 2”): 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

specied above.

Ambient Temperature Ranges ....-40 to 205°F (-40 to 96°C)

Minimum Regulation .................Suitable for pilot ow applications. (Circle P) (0.15 CFH NG).

Imblue Technology™ .................325-3L, 325-5L, 325-7AL, 325-9L 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 sufx letter “B” to model number

when ordering.

Maxitrol’s 325-L Series line pressure regulators are for 2 psi

piping systems. 325 Series regulators are for use on residential,

commercial, and industrial applications.

The 325 Series features a high leverage linkage assembly to

deliver positive dead-end lockup. The regulators are capable

of precise regulating control from full ow down to pilot ow.

325-3L

Specications

325-L SERIES

Lever Acting Design for 2 psi Piping Systems