Gas Regulators

Maxitrol RV Series

Straight-Thru Flow Design
Data Sheet
Maxitrol’s original straight-thru-flow design regulators are main burner only, non-lockup type. Typical applications include residential, commercial, and industrial gas-fired appliances and equipment used on low/medium pressure gas supply.

ModelsPipe Size
RV52(F)1/2", 3/4"
RV533/4", 1"
RV611", 1 1/4"
RV811 1/4", 1 1/2"
RV912", 2 1/2"
RV1112 1/2", 3"
RV1314" Flanged

Maxitrol RV Series

Poppet Design
Data Sheet

The poppet model RV Series is designed primarily for main burner and pilot load applications. Typical applications include residential and commercial cooking appliances, hearth products, pilot lines, and residential water heaters. They are rated for up to 1/2 psi (35 mbar).

ModelPipe Size
RV201/4", 3/8"
RV473/8", 1/2"
RV481/2", 3/4"

Maxitrol 325 Series

Lever Acting Design
Data Sheet
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.

TypeModel/Pipe SizePSI
Appliance325-3 (3/8", 1/2") 
325-5A (1/2", 3/4", 1") 
325-7 (1 1/4", 1 1/2")
Line Regulator325-3L (3/8", 1/2") 
325-5AL (1/2", 3/4", 1") 
325-7L (1 1/4", 1 1/2")
Line Regulator with OPD325-3L47 (3/8", 1/2") 
325-3L48 (1/2") 
325-5AL48 (1/2", 3/4") 
325-5AL600 (3/4", 1") 
325-7L210D (1 1/4", 1 1/2")

Maxitrol R400, R500, R600 Series

Balanced Valve Design
Data Sheet
R & RS regulators are for main burner and pilot load applications. They are ideal for use in industrial applications such as infrared heaters and on pilot lines for large process heaters and bakers. They may also be used in residential applications as appliance regulators.

ModelsPipe Size
R400*3/8", 1/2"
R400(F)3/8", 1/2"
R400S*3/8", 1/2"
R500*1/2", 3/4"
R500S*1/2", 3/4"
R600*3/4", 1"
R600S*3/4", 1"

Maxitrol 210 Series

Balanced Valve Design
Data Sheet
210 Series balanced valve design is a lockup-type regulator. Its intended applications include gas-fired boilers, steam generators, industrial furnaces, and ovens. Remote sensing option is available on 210D, E, and G models (consult Maxitrol).

ModelsPipe Size
210D*1", 1 1/4", 1 1/2"
210E*1 1/2", 2"
210G*2 1/2", 3"
210J4" Flanged

Maxtrol Z Series

Zero Governors
Data Sheet
Zero Governor regulators are used for flow control of burners, nozzle mixers, mixing tees, and proportional pre-mixers.

ModelPipe Size
R400Z(F)*3/8", 1/2"
R500Z*1/2", 3/4"
R600Z3/4", 1"
210DZ1", 1 1/4", 1 1/2"
210EZ1 1/2", 2"
210GZ2 1/2", 3"
210JZ4" Flanged

Maxitrol 220 Series

Pilot Loaded
Maxitrol – 220
pilot 220
The 220 Series, utilizing a servo-operated design rather than the more conventional spring-loaded design, delivers higher outlet pressure than spring loaded models.

ModelPipe Size
220D1", 1 1/4", 1 1/2"
220E1 1/2", 2"
220G2 1/2", 3"
220J4" Flanged


143 Series
Data Sheet

Sensus Model 143 domestic service regulators can be used on both residential and small commercial and industrial applications. With a variety of body sizes, loading springs, and orifices sizes, these regulators can provide the outlet pressure ranges and capacities to fit most applications for a 6″ service diaphragm regulator. The model 143-80 design provides the popular union nut connectional, not requiring bolts or screws to connect the body to the diaphragm assembly. It is available with an internal relief valve (IRV), and with a low pressure cutoff (LPCO). Simple, rugged, precise and outstanding performance.


243 Series
Data Sheet

The Model 243 service regulator is a large capacity industrial service regulator designed for commercial, industrial, and gas distribution use. As a result of the union connection between the fully interchangeable bodies and the diaphragm case, they have remarkable field versatility. They are easy to install, adjust, inspect, and service in all piping arrangements. The model 243 can be used in a variety of applications such as: factories, foundries, district regulator stations, commercial laundries, and all types of gas fueled equipment including boilers, burners, furnaces, ovens, heaters, kilns, and engines.