We pride ourselves on service, availability and price.

Toll-free: 877.962.8808
Office: 636.733.9009
Fax: 636.733.9008


We are here to serve you, and we believe in customer service to the fullest.  Please call us for help sizing, troubleshooting or ordering our products.

What to know before ordering

More about our team


Midwest Gas Equipment, Inc.

184 Chesterfield Industrial Blvd.
Chesterfield, MO 63005
custsvc@midwestgasequipment.com


Driving directions:

From 270 & 40/64
 
Hwy 40/64 West to Long Road.
Go right at first light, Chesterfield Airport Road. Go right at second street, Chesterfield Ind. Blvd. Go left into our parking lot right before the stop sign.
 
From St. Charles
 
Hwy 40/64 East to Chesterfield Airport Rd. Travel 1.5 miles and go right on Chesterfield Ind. Blvd. Go left into our parking lot right before the stop sign.

See the Google map

Same day shipping
available.

Maxitrol Regulators

Maxitrol® 325 Series L-models are A.G.A./CGA certified (Z21.80/CAN 6.22) for 2-psi or 5-psi inlet, commonly used with CSST or semi-rigid copper tubing. And the new Z21.80 standard requires the use of an over-pressure protection device (OPD) for supply pressures above 2-psi, tested and approved with the regulator. Maxitrol-built OPDs provide the required downstream over-pressure protection.

Optional automatic vent limiting devices eliminate the need to run vent piping from the regulator to a safe area. In the event of a diaphragm rupture, gas escapement is limited to within ANSI standards. Our manual ball valves are certified as well. All 325 regulators are proudly made in the USA.

Maxitrol 325 Literature | Spring Chart

Model Rated Inlet Pressure Certified To
325-3, 325-5A, 325-7

2psi, 5psi, certified
10psi (non-certified)

ANSI 21.18, EN88
Appliance Regulator Standard
325-3L, 325-5AL, 325-7L 2psi ANSI 21.80
Line Regulator Standard
325-3L47, 325-3L48,
325-5AL-48, 325-5L600

(with over protection device attached)
5psi ANSI 21.80
Line Regulator Standard

325-5 Lever Acting Design. Maxitrol's 325 Series regulators are for 2 psi and 5 psi piping systems. Models available for appliance main burner or pilot applications and as line pressure regulators.

Gases: Natural, manufactured, mixed, liquified petroleum or LP gas-air mixture.

Type Model Size PSI and Certification Appliance 325-3 3/8", 1/2" ANSI Z21.18 Certified Appliance Regulator to 5-psi or Non-certified to 10-psi 325-5A 1/2", 3/4", 1" ANSI Z21.18 Certified Appliance Regulator to 5-psi or Non-certified to 10-psi 325-7 1-1/4", 1-1/2" Non-certified to 10-psi Line Regulator 325-3L 3/8", 1/2" ANSI Z21.80 Certified Line Regulator to 2-psi 325-5AL 1/2", 3/4", 1" NSI Z21.80 Certified Line Regulator to 2-psi 325-7L 1-1/4", 1-1/2" ANSI Z21.80 Certified Line Regulator to 2-psi LIne Pressure with OPD 325-3L47 3/8", 1/2" 325-3L with OPD47 factory installed to 5-psi 325-3L48 1/2" 325-3L with OPD48 factory installed to 5-psi 325-5AL48 1/2", 3/4" 325-5AL with OPD48 installed to 5-psi 325-5AL600 3/4", 1" 325-5AL with OPD600 installed to 5-psi 325-7L210D 1-1/4", 1-1/2" 325-7L with OPD210D installed to 5-psi.

Maxitrol® RV/CV Series

These rubber seat poppet type regulators are designed primarily for main burner and pilot load applications where precise control of tiny flows is an essential operating requirement. ® certified (.15 CFH).

Housing are of high strength alumunium die castings. All models, with the exception of D suffix models, have been tested for multi-poise mounting and may be installed in any plane or angle without restriction. D suffix models are to be mounted horizontally. Other than normal upright position will result in slight difference of outlet pressure. They may be used with natural, manufactured, mixed, LP or LP gas-air mixture.

RV/CV Literature

Midwest Gas Equipment home