Itron is a manufacturer of gas regulators and meters. In today’s resource-hungry world — where infrastructure modernization, new CO2-neutral energy generation and clean water for everyone are essential — resource management is more critical than ever before. We all need to be more mindful of resource utilization and conservation. Itron is dedicated to developing solutions that address these challenges through more efficient measurement, management and analysis of energy and water resources. Utilities trust Itron’s technology and people to help build a sustainable future with the latest innovations, a commitment to quality and a shared passion for responsible resource management.

Residential and Light Commercial Regulator

The B42 is a spring-loaded self-operated regulator with internal relief option. The B42 features a molded diaphragm, 6:1 lever ratio and one inch vent. The benefit is a lighter more compact unit that provides the power, capacity and relief performance of larger regulators.


Consistent pressure reduction of gas for typical domestic and light commercial applications.

Option Designations

  • N No Internal Relief
  • R Internal Relief
  • HP Available – See spring chart
Oslin Nation Itron B42 Straight body connection

Straight body connection

Itron B42N Gas Regulator

The B42N is a spring-loaded, self operated regulator with no internal relief (N) valve. This model can be used on low or intermediate inlet pressures where an internal relief or other type of over-pressure protection device is not required.

Itron B42 Cast Iron Gas Regulator

The B42 Cast Iron is a version of the B42 with a cast iron diaphram case that can be used in a pit or curb vault application.

Oslin Nation Itron B42 90° Angle body connection

90° Angle body connection

Itron B42R Gas Regulator

The B42R is the internal relief (R) version of the B42 Series. The large 1″ internal relief valve provides exceptional relief capacity.

Designed to increase your customer’s satisfaction and reduce your total costs

The model B42 is uniquely constructed to give utilities the edge they need in an increasingly complex and competitive marketplace. The model B42 excels with benefits of size, safety, performance, and cost. The B42 also offers three connection versions providing the greatest flexibility for your regulations needs. In addition, due to inventory and manufacturing enhancements, this product can be delivered with unparalleled speed and scheduling dependability.

Oslin Nation Itron B42 - Compact body connection

Compact body connection

Compact Size

While the model B42 is more compact than traditional regulators, it was also designed to meet customer expectations for safety and long field life. The B42 is designed to consolidate product usage for both residential and light commercial applications

B42 Series Regulator Features

  • Interchangeable aluminum orifice
  • 12.6 sq. in. of diaphragm area
  • Molded deep convolution diaphragm with o-ring seal
  • Plated steel 6:1 lever
  • One piece molded Buna-N valve seat
  • Delrin® vent valve with Buna-N seat
  • Spring-loaded internal relief valve assembly
  • 1″ and ¾ ” threaded vent with stainless steel screen
  • Fiberglass reinforced polyethylene seal cap with integral relief valve stop
  • Field interchangeable adjustment spring
Oslin Nation Itron B42 Operational schematic

Operational schematic

Shipping Weight

  • B42: 12 regulators per box Box weight: 48 lbs.
  • B42 cast iron: 4 regulators per box Box weight: 32 lbs.

Check out Itron B42 Series Regulator full details by downloading this PDF

About Oslin Nation

We have been providing dedicated service to the great state of Texas for over 75 years. No project is too large and no problem is too small for our experienced and trustworthy team. With four locations across the state of Texas, we are always within reach. With locations in Dallas-Fort WorthHoustonSan Antonio, and Austin, we have vast solutions experience with all aspects of hydronic equipment ranging from pumps to boilers, and piping to tanks. When you need a partner in the commercial plumbing and HVAC system solutions industry, look no further than Oslin Nation Co.