©Johnstone Supply eCatalog 216

HVAC CONTROLS Gas Pressure Regulators

Gas Pressure Regulators • Use with natural, mixed, manufactured, LP or LP gas/air mixtures in residential, commercial and industrial applications • Housings are rugged aluminum die castings, and all internal parts are carefully selected and corrosion-resistant • Adjustable within spring range • Pound to inches regulators where adequate inlet pressures are available • Feature high leverage valve linkage to deliver positive deadend lock-up and precise regulating control from full flow down to pilot flows • Self-aligning valve made of Nitrile rubber • Includes automatic vent limiting device with all regulators except L39-085 and L86-521 • L39-085 and L86-521 must be vented if being used indoors • L39-082 , L39-083 , L39-084 and L86-521 are equipped with over-pressure protection devices (OPD) complying with new ANSI codes for 5 lb. gas pressure

• L39-011 protects breather hole from rain, snow, dust and other foreign matter; not a vent limiting device Specifications: • Maxitrol tested for 10 PSI • Emergency exposure limits: 65 PSI inlet side only • Ambient temperature: -40°F to +205°F • Standard spring range: 7" to 11" W.C. WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov Note: All Maxitrol appliance regulators should be installed and operated in accordance with Maxitrol’s “Safety Warning” bulletin (included with product). The latest ANSI Standard for Line Pressure Regulators (Z21.80) requires that an over-pressure protection device (OPD) be used on any regulator designed for use with 5 lb. gas. Check with your local code officials to see if this applies in your area.

A

B

C

D

E

F

G

Each

Fig. Order #

Mfg. #

Pipe Size

Gas Pressure

Vent Tap

Vent Model

Mounting

OPD

L37-535 L39-082 L37-730 L39-083 L39-084 L39-085 L86-521 L39-011

A B C D D E F G

325-3L-44

1/2" x 1/2"

2 Lbs. 5 Lbs. 2 Lbs. 5 Lbs. 5 Lbs. 2 Lbs. 5 Lbs.

Tapped 1/8" NPT 12A09 Tapped 1/8" NPT 12A09 Tapped 3/8" NPT 12A39 Tapped 3/8" NPT 12A39 Tapped 3/8" NPT 12A39 Tapped 1/2" NPT — Tapped 1/2" NPT —

Multi-directional

No

75.00

325-3L48-44

1/2"

Upright Upright Upright Upright

Yes

155.00 165.00 479.00 479.00 419.00 1499.00

325-5L-66

3/4" x 3/4"

No

325-5L600-66 325-5L600-88

3/4"

Yes Yes

1"

325-7AL-1010-0004 1-1/4" 325-7AL210D-10-003 1-1/4"

Multi-Poise Multi-Poise

No

Yes

13A15

—

—

—

—

—

—

45.49

Cubic Feet Per Hour Pressure Drop

Fig. Order #

0.3"

1.0"

7.0" 145 338 690

1/2 PSI

3/4 PSI

A L37-535 D L37-730 F L39-085

— — —

— — —

204 476 972

250 583

1191

Gas Pressure Regulators • Mount or install at any plane or angle without restriction (other than upright position results in slight outlet pressure difference) • L37-534 is a non-convertible type, while L37-533 is a convertible regulator with outlet pressure pre-set at 4" W.C. for natural gas • Converting to 10" W.C. for LP can be set by removing seal cap, inverting plunger and replacing cap

• This model also has an integral vent limiting orifice as breather hole Specifications: • Maximum inlet pressure: 1/2 PSI • Emergency exposure limits: 2.5 PSI • Ambient temperature: 32°F to 225°F • Poppet type WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

A

B

Each

Fig. Order #

Mfg. #

Pipe Size

Vent Tap Integral Integral

Mounting

L37-534 L37-533

A B

RV48L-66 3/4" x 3/4" RV47CL-44 1/2" x 1/2"

Multi-Poise Multi-Poise

85.00 89.00

Cubic Feet Per Hour Pressure Drop

Cubic Feet Per Hour Pressure Drop

Fig. Order #

0.3"

1.0" 274

7.0"

1/2 PSI

3/4 PSI

Fig. Order #

0.3"

1.0" 110

7.0"

1/2 PSI

3/4 PSI

A L37-534 150

—

—

—

B L37-533 60

—

—

—

388

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