Regulator and Meter Sizing Tips

Inlet pressure, type of gas, connection size, load and capacity, these are just a few things you need to know to properly size meters and regulators. Review our useful sizing tips below to make sure you select the right meter and regulator sizes for your project.

Meters Sizing Tips

Finding the right size of diaphragm meter, rotary meter, or turbine flow meter can be tricky. Here are some important things you need to know for proper meter sizing:

  • Line pressure
  • Type of gas being metered
  • Load/Capacity
  • Required connection size
  • Pressure or temperature correction
  • Required pulse output/remote read
  • Require sealing

When sizing regulators and gas
meters, we will supply you with all the
information you need to quote your
customer.

Regulator Sizing Tips

There are several types of gas regulators such as propane regulators, appliance regulators, high-pressure regulators to name a few. Just like for meters, regulators require proper sizing. Review our regulator sizing tips per regulator type below to pick the right product size.

Appliance Regulator

Things you need to know to properly size an Appliance Regulator:

  • Inlet pressure (min-max)
  • Required Outlet pressure
  • Type of gas to be regulated
  • Load/Capacity rating? (in Btu, Cfh, Mbh, m3, etc)
  • Ventless (if possible) or vented
  • Required connection size
  • Modulating

Back Pressure Regulator/Relief valves

Things you need to know to properly size a Back Pressure Regulator/ Relief Valves:

  • Required set pressure set point
  • Type of gas to be regulated
  • Load/Capacity? (in Btu or Cfh)
  • Required connection size

Direct Acting Regulator

Things you need to know to properly size a Direct Acting Regulator:

  • Inlet pressure
  • Required Outlet pressure
  • Type of gas to be regulated
  • Load/Capacity? (in Btu or Cfh)
  • What size downstream sensing line does the regulator require?
  • Required connection size
  • Modulating application OR on/off application
  • Do you require an external relief valve?

High Pressure Specialty Regulator

Things you need to know to properly size a High Pressure Specialty Regulator:

  • Min/Max Inlet pressure
  • Required Outlet pressure
  • Type of gas to be regulated
  • Load/Capacity? (in Btu or Cfh)
  • Required connection size
  • Do you require an external relief valve?

Line Regulator

Things you need to know to properly size a Line Regulator:

  • Inlet pressure
  • Required Outlet pressure
  • Type of gas to be regulated
  • Load/Capacity? (in Btu or Cfh)
  • Ventless (if possible) or vented
  • Required connection size
  • Modulating application OR on/off application

Spring Loaded Service Regulator

Things you need to know to properly size a Spring Loaded “Service” Regulator:

  • Inlet pressure
  • Required Outlet pressure
  • Type of gas to be regulated
  • Load/Capacity? (in Btu or Cfh)
  • Do you require internal relief?
  • Required connection size
  • Modulating

Pilot Operated Regulator

Things you need to know to properly size a Pilot Operated Regulator:

  • Inlet pressure
  • Required Outlet pressure
  • Type of gas to be regulated
  • Load/Capacity? (in Btu or Cfh)
  • Required connection size
  • Modulating application OR on/off application
  • Do you require an external relief valve?

Propane Regulator

Things you need to know to properly size a Propane Regulator:

  • Type of regulator: First Stage, Second Stage, Twin-Stage, Automatic Change-Over or Single Stage.
  • Inlet pressure
  • Required outlet pressure
  • Required set pressure set point
  • Load/Capacity? (in Btu)
  • Required connection size(s)
  • Do you require an external relief valve?

Let Our Experts Help

If you’re not sure about which regulator or valve size you need, Norgas’ experts are here to help. We have years of experience in the gas industry and extensive knowledge of gas applications. Contact us and will be happy to assist you.

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