Submittal

ManualsBrandsMaxitrol ManualsHeating Supplies2" Lever Acting Regulator w/ OPD (2,250,000 BTU)

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

Housing Material ........................ All models: aluminum.

Mounting All models with the exception of 325-7AL210D and 325-9L210E are suitable for

multi-positional mounting. 325-7AL210D and 325-9L210E are to be mounted in a

horizontal upright position only. If ball check vent limiting device is installed, mount in an

upright position only.

...................................................... NOTE: Line pressure regulators with separate overpressure protection

devices are factory preassembled and supplied to the eld as a unit. All Maxitrol gas pressure

regulators should be installed and operated in accordance with Maxitrol Safety Warning

Instructions (see LPROPD_MI_EN.FR).

Certications ................................ All models: 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.

Rated Inlet Pressure .................... 5 psi (34.5 kPa)

Maxitrol Tested ........................... 10 psi (69 kPa)

With 12A09, 12A39, or 12A49 Vent Limiter Installed

Natural: 5 psi (34.5 kPa); LP: 2 psi (13.8 kPa)

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

Maximum Individual Load/

Capacity ...................................... 325-3L47 (3/8”, 1/2”) (w/OPD 47 attached).................................. 125,000 Btu/h

325-3L48 (1/2”) (w/OPD 48 attached)........................................... 200,000 Btu/h

325-5L48 (1/2”) (w/OPD 48 attached)............................................235,000 Btu/h

325-5L48 (3/4”) (w/OPD 48 attached)............................................320,000 Btu/h

325-5L600 (3/4”) (w/OPD 600 attached)........................................425,000 Btu/h

325-5L600 (1”) (w/OPD 600 attached)...........................................465,000 Btu/h

325-7AL210D (1 1/4”, 1 1/2”) (w/OPD 210D attached) ..............1,250,000 Btu/h

325-9L210E (1 1/2”, 2”) (w/OPD210E attached)..........................2,250,000 Btu/h

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

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

Maxitrol’s 325-L Series line pressure regulators with OPDs

are for use on piping systems up to 5 psi. The regulator

reduces pounds pressure to a level within the appliance

or equipment’s operating supply range. The line regulator

is located upstream of equipment already tted with an

appliance regulator.

325-3L47

Specications

325-L SERIES

Lever Acting Design with OPDs

for 5 psi Piping Systems

Summary of content (6 pages)

PAGE 1
325-L SERIES Lever Acting Design with OPDs for 5 psi Piping Systems M axitrol’s 325-L Series line pressure regulators with OPDs are for use on piping systems up to 5 psi. The regulator reduces pounds pressure to a level within the appliance or equipment’s operating supply range. The line regulator is located upstream of equipment already fitted with an appliance regulator. 325-3L47 Specifications Pipe Sizes..................................... 3/8” thru 2” threaded connections with NPT or ISO7-1 threads.
PAGE 2
LINE REGULATORS ® C US Capacities Capacities expressed in CFH (m3/h) @ 0.64 sp gr gas Model Number Pipe Size 325-3L47 3/8” x 3/8” 325-3L47 1/2” x 1/2” 325-3L48 1/2” x 1/2” 325-5L48 1/2” x 1/2” 325-5L48 3/4” x 3/4” 325-5L600 3/4” x 3/4” 325-5L600 1” x 1” 325-7AL210D 1 1/4” x 1 1/4” 325-7AL210D 1 1/2” x 1 1/2” 325-9L210E 1 1/2” x 1 1/2” 325-9L210E 2” x 2” Operating Inlet Pressure Outlet Pressure Set Point 1/2 psi (3.4 kPa) 3/4 psi (5.2 kPa) 1 psi (6.9 kPa) 5 psi (34.
PAGE 3
25-L SERIES Lever Acting Design with OPDs for 5 psi Piping Systems Pressure Drop Pressure Drop expressed in CFH (m3/h) @ 0.64 sp gr gas Model Number Pipe Size Pressure Drop 7” w.c. (1.7 kPa) 1/2 psi (3.4 kPa) 3/4 psi (5.2 kPa) 325-3L47 3/8” x 3/8” 130 (3.6) 185 (5.2) 225 (6.3) 325-3L47 1/2” x 1/2” 135 (3.8) 195 (5.4) 235 (6.6) 325-3L48 1/2” x 1/2” 160 (4.5) 225 (6.3) 275 (7.7) 325-5L48 1/2” x 1/2” 315 (8.8) 450 (12.6) 545 (15.4) 325-5L48 3/4” x 3/4” 325 (9.1) 465 (13.
PAGE 4
LINE REGULATORS Lever Acting Design With OPD 6 1 7 2 13 14 8 9 10 3 11 18 19 20 21 15 16 17 22 23 4 24 5 12 25 NOTE: Diagrams are graphical representations only and may differ from actual product.
PAGE 5
325-L SERIES Lever Acting Design with OPDs for 5 psi Piping Systems Dimensions Model Vent Connection Pipe Size Dimensions Swing Radius A B C 325-3L: 1/8” OPD47: Integral 3” (76 mm) 3.5” (89 mm) 8” (203 mm) 3.9” (99 mm) 1/2” 325-3L: 1/8” OPD48: 1/8” 3” (76 mm) 3.5” (89 mm) 8.5” (216 mm) 3.9” (99 mm) 325-5L48 1/2”, 3/4” 325-5L: 3/8” OPD48: 1/8” 4.4” (112 mm) 5.3” (135 mm) 10” (254 mm) 5.4” (137 mm) 325-5L600 3/4”, 1” 325-5L: 3/8” OPD600: 1/8” 4.4” (112 mm) 5.