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How to select the correct natural gas regulator? (Sizing)

by | on | in Measurement and Control of Natural Gas | 4 Comments

Continuing my "Back to Basics" series, I thought I would address sizing natural gas regulators.

Natural Gas Regulator Sizing

regulator sizingClick for Preston's Regulator Cheat Sheet!As a stocking distributor of natural gas regulators, I am often asked by my customers which regulator to use for a particular application. I usually ask a few questions and can quickly direct the customer to a product. Occasionally a DIY-type (do-it-yourself) will ask, "What's the secret to selecting the correct product?"
There's no secret, and I am happy to share the information which is why I am posting it here. There are five areas which help ascertain which regulator to recommend:

  1. What type of gas are you regulating? While the majority of my customers inquire about natural gas or methane, I can assist in the regulation of other fuel gases.
  2. What is the inlet pressure? If you do not have a pressure gauge, you can always call your gas distributor, or inquire about some of the excellent gauges (gages) we have available.
  3. b42-gas-regulatorItron B42 Natural Gas RegulatorWhat is the desired outlet pressure?
  4. What is the flow?
  5. What is the desired pipe size?

If you have the answers to these questions, you have the information needed to select the correct regulator. Without having a background and knowledge of regulator capabilities, however, you may find yourself studying endless sizing charts and graphs.

While there are some sizing programs available, they are not foolproof and until they are, I personally still size my customer's regulators the old-fashioned way.


Request a Quote

Before you get the magnifying glass out to pore through those charts, remember I am happy to assist my customers by sizing regulators for their applications. Call today, (303) 697-6701.

Update to Post

We have more information available on the parameters needed to size a natural gas regulator correctly on "Natural Gas Regulator Sizing | Itron Regulators."

Blog posted from 12450 W Cedar Dr, Lakewood, CO 80228, USA View larger map
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About The Author

Susan Bender started selling to the natural gas industry in 1980. In 1990 she founded Linc Energy Systems, where she remains as President and CEO. She attributes her success to her philosophy, “The customer is king (or queen),” which remains part of her company’s mission.


  • Dave Thomas
    Dave Thomas Tuesday, 30 July 2013

    Dave Thomas

    I have a natural gas well on my farm
    Has been for over 80 years.
    They use it to heat hose and run gas lights.
    Then just just a hot water heater.
    They told me it lost it pressure.
    I unhooked it from house from a regulator and found it has 21psi.
    We hooked up to a paint regulator
    Cutting the pressure down as low as we could hook up to a natural gas furnace and it burned very clean, and the durance cycled.
    Question; need to know how or what size of regulator I will need to cut pressure down from 21psi in to about 3psi to run a 120 btu boiler?

  • Guest
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  • Guest
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  • Guest
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