For a better experience, keep your browser up to date. Check here for the latest versions.

143-80 Domestic Service Regulators


Deliver Precise Pressure Control

Like others in our family of service regulators, our Domestic 143-80 models are built to perform. They feature precise pressure control and outstanding performance and dependability. These residential gas regulators are also available with a low-pressure cut-off.

The Domestic 143-80 design offers smart features, including an internal relief valve as well as union nut connection, which does not require bolts or screws to connect the body to the diaphragm assembly. This enables the regulators to be set in virtually any position for excellent field versatility. They are simple, rugged and precise residential gas regulators that deliver outstanding performance.

Domestic 143-80 service regulators are used for both residential and small commercial and industrial applications, such as burners, furnaces, ovens, heaters, gas engines and others. They are available with a variety of body sizes, loading springs and orifice sizes. These compact regulators provide the outlet pressure ranges and the capacities to fit most applications for a 6″ service diaphragm regulator.

Although mainly used with natural gas, these regulators perform equally well when used with air, LPG, dry CO2, propane and other non-corrosive gases.

Benefits to you

  • Installs in numerous mounting positions
  • Delivers precise pressure control
Features & Documents
Find Product Documents


  • Low-pressure cut-off available
  • Internal relief valve available
  • Seven outlet pressure ranges


Valve Body Sizes:


  • 3/4″ x 3/4″
  • 3/4″ x 1″
  • 3/4″ x 1-1/4″
  • 1″ x 1″
  • 1″ x 1-1/4″
  • 1-1/4″ x 1-1/4″

For more information about this product, download the data sheet.

Related Sections

Have questions?

Our experienced staff can help you find the answers.

Contact Us

Select Your Region:

Europe, Middle East, and Africa (EMEA)

Latin America and the Caribbean (LAR)

North America (NA)