Natural Gas Submeters & Flow Meters

We supply diaphragm and rotary submeters for building services and thermal mass insertion meters for process and combustion lines, with pulse or Modbus output so the readings land in the same dashboard as your electric and water data.

Choosing a gas meter

• Diaphragm meters suit low- and medium-pressure building service and tenant applications: proven, inexpensive, pulse output as standard. See the Itron Gallus G4 and the MTW G4 diaphragm submeter.
• Thermal mass insertion meters read mass flow directly on process, biogas and combustion-air lines, with no pressure and temperature compensation to maintain.
• Size to flow, not to the pipe.
• Confirm pressure class and approvals before ordering; billing applications may need a specific meter type in your jurisdiction.
• Plan the reading path. A pulse-output gas meter needs a counter — see integration components.

What gas submetering is used for

Scope 1 emissions. Combustion is a direct emission; metered therms are the defensible basis for the number, as covered in steam and gas optimization for Scope 1 emissions.

Boiler and process efficiency. Gas in versus steam or heat out is the only real efficiency measure, which is where gas metering pairs with steam metering and BTU meters.

Tenant recovery and code compliance. IECC 2024 extends submetering expectations to non-electrical end uses; see meter selection help for gas metering.