Air Flow Meter

SL Measurement supplies air and gas flow instruments for monitoring gas supplies, checking process flow and maintaining controlled delivery. Choose from local flow indicators, gas mass flow meters and mass flow controllers according to the gas, flow range and operating conditions.

Start by deciding whether you need to measure an existing flow or automatically regulate it to a setpoint.

Gas flow measurement or automatic control?

  • Local flow indicator: Provides a reading at the installation for routine checks.
  • Mass flow meter: Measures gas flow for indication, recording or connection to other equipment.
  • Mass flow controller: Measures flow and adjusts a control valve to maintain the required setpoint.

A meter with a manual adjustment valve requires an operator to adjust the flow. Select a controller when automatic regulation is part of the application.

KOFLOC gas mass flow meters and controllers

The KOFLOC gas mass flow range includes measurement and control options for laboratory equipment and industrial gas systems. Available configurations include instruments with local displays, external signals and metal-sealed construction.

Specify the actual gas or mixture and the required measuring range. Display functions, power supplies and communication options vary by model and should be checked against your equipment requirements.

RCM local air and gas flow indication

The RCM Flo-Gage differential pressure flowmeter provides a direct local reading for compatible air and gas applications. Its mechanical indication operates without external power.

Confirm the gas, operating pressure, temperature and required scale when selecting the instrument. Alarm-switch and transmitter options depend on the configuration.

Specify the flow units and operating conditions

Include the complete flow units in your enquiry. For values expressed in SCCM, SLM or other reference-based units, provide the reference temperature and pressure. This helps ensure that the specified range and the required process flow are compared on the same basis.

For automatic flow control, provide both inlet and outlet pressures so the available pressure difference can be considered during selection.

Information to include with your enquiry

  • Gas: Name or mixture composition.
  • Flow: Minimum, normal and maximum values, including units and reference conditions where applicable.
  • Pressure and temperature: Normal operating conditions and expected variations.
  • Function: Measurement only, local indication or automatic control.
  • Connections: Pipe or tubing size, fitting type and installation space.
  • Electrical interface: Available power supply, output signal and controller setpoint requirements.

Replacing an existing air or gas flow instrument?

Send the complete model code and a clear nameplate photograph, together with the gas, calibrated range and connection details. Include wiring or connector information if the instrument connects to an existing control system.

Contact SL Measurement for selection assistance, pricing and availability.

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Explore our complete flow instrument range, or visit liquid flowmeters for water and oil measurement.

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KOFLOC Gas Mass Flow Meters & Controllers
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Kofloc

KOFLOC Gas Mass Flow Meters & Controllers

KOFLOC thermal mass flow meters and controllers measure or regulate gas flow in laboratory equipment, gas supply systems and industrial processes. Select a mass flow meter for measurement, or a mass flow controller for automatic regulation to a setpoint.

  • Gas selection: Air, nitrogen and other compatible gases, with the appropriate calibration.
  • Model options: Standard meters, display-equipped instruments and metal-sealed configurations.
  • Integration: Analogue signals and digital communication depend on the selected model.
  • Existing 8500/D8500 users: The discontinued series has a manufacturer-designated alternative in the 8700 range, subject to configuration checks.
RCM Flo-Gage Differential Pressure Flowmeter for Liquids & Gases
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RCM

RCM Flo-Gage Differential Pressure Flowmeter for Liquids & Gases

The RCM Flo-Gage differential pressure flowmeter provides a direct local reading of liquid or gas flow. The mechanical indicator operates without external power and can be specified for water, compatible oils, compressed air and other gases.

  • Clear indication: 90 mm analogue dial with a 270° scale.
  • Performance: ±3% of full-scale accuracy over a 6:1 measuring range.
  • Connections: Series 7000 threaded or Series 8000 wafer construction.
  • Options: Material, alarm-switch and transmitter configurations to suit the application.