Indicating Flowmeter for Liquid and Gases

Indicating Flow Meters for Liquids and Gases

Indicating flow meters provide a local reading for operators checking flow through equipment, pipework and process systems. This category includes instruments for liquid or gas service, with the suitable technology depending on the fluid and operating conditions.

Options include glass or acrylic tube meters, metal tube variable-area meters and electronic flow meters with displays. Not every model measures both liquids and gases; select a meter calibrated and configured for the intended service.

Choose the Right Instrument Type

Instrument typeTypical purposeWhat to check
Purge and panel flowmeter Local indication of small flows in equipment, sampling and purge systems. Calibrated fluid, scale range, valve position, mounting and connections.
Glass or acrylic tube flowmeter Direct visual flow readings for compatible liquids or gases. Tube and seal compatibility, temperature, pressure and installation orientation.
Metal tube variable-area flowmeter Local indication where operating conditions require a suitable metal measuring tube. Fluid properties, construction materials, pressure rating and optional electrical outputs.
Electronic flowmeter with display Local readings with options for remote monitoring or totalisation. Measurement principle, fluid suitability, power supply and output requirements.

Ryutai Kogyo Flowmeter Families

  • PGH, GPB, GPC and AMF: purge and panel-mounted options for small-flow applications.
  • GTF, ATF, GTV and ATV: tube-type variable-area families with different construction and connection options.
  • ADF, GDF and GDR: water-flow indication across model-specific measuring ranges.
  • EM Series: metal tube flowmeters with local indication and optional outputs, depending on configuration.

Information Needed for Selection

  • Fluid: state the liquid or gas, composition and relevant properties.
  • Flow: provide the required range and units. For gases, specify whether the values refer to actual or reference conditions.
  • Pressure and temperature: include normal and maximum operating conditions.
  • Installation: confirm pipe connections, mounting orientation, available space and viewing access.
  • Control: specify whether you need indication only, a regulating valve, alarms or remote outputs.

Variable-area scales depend on the calibration conditions. A scale for one fluid or gas pressure should not be assumed accurate for another without checking the applicable correction or calibration.

For conductive liquid applications, compare our electromagnetic flow meters. You can also browse the complete flow measurement range.

Need Help Selecting an Indicating Flow Meter?

Contact Seacom with your fluid, required flow range, operating pressure and temperature, connections and mounting arrangement. For a replacement, include the existing model number and a photograph of its scale.

Send us an email enquiry or Enquire on WhatsApp.

Indicating Flowmeter for Liquid and Gases

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Ryutai Kogyo EM Series Metal Tube Flowmeters and Transmitters
  • New

Ryutai Kogyo EM Series Metal Tube Flowmeters and Transmitters

The Ryutai Kogyo EM Series provides metal tube variable area flow measurement with local indication and optional electrical outputs.

  • Model configurations for liquids, gases and steam.
  • Options for remote flow monitoring, totalising and alarms.
  • Select the model, materials and connections for your operating conditions.
Ryutai Kogyo PGH Purge Flowmeter for Small Flow Rates
  • New

Ryutai Kogyo PGH, GPB, GPC & AMF Purge and Panel Flowmeters

Ryutai Kogyo PGH, GPB, GPC and AMF purge and panel flowmeters provide local flow indication for equipment and test systems.

  • PGH: compact glass tube meter for small flows.
  • GPB and GPC: glass tube panel meters with different flow capacities.
  • AMF: lightweight acrylic tube panel meter.
  • Choose the series, calibrated range and configuration to match the application.
Badger Meter ModMAG M2000 electromagnetic flow meter
  • New

Badger Meter ModMAG M2000 Electromagnetic Flow Meter

The Badger Meter ModMAG M2000 measures conductive liquid flow, with applications in data centre chilled-water and cooling-water systems. Communication options support integration with building and plant monitoring systems.

  • Flow velocity range: 0.03–12 m/s
  • Accuracy: ±0.20% of reading ±1 mm/s with suitable straight pipe
  • Integral or remote transmitter arrangements
  • BACnet, Modbus and other communication options
  • Zero-straight-run capability subject to specified conditions
Onicon Electromagnetic Flowmeter FT-3000

ONICON FT-3000 Series Inline Electromagnetic Flow Meters

The ONICON FT-3000 Series measures electrically conductive liquids in chilled-water, heating-water, condenser-water and other HVAC systems.

  • Inline electromagnetic measurement with no moving parts.
  • FT-3100 and FT-3200 transmitter options.
  • Flow-rate and totalisation outputs, depending on configuration.
  • Integral or remote transmitter mounting.
  • Individually wet-calibrated with a calibration certificate.
TOKICO PFA Ultrasonic Vortex Flowmeter for Chemicals and Ultrapure Water

TOKICO PFA Ultrasonic Vortex Flowmeter for Chemicals and Ultrapure Water

The TOKICO PFA ultrasonic vortex flowmeter measures compatible chemicals, corrosive liquids and ultrapure water using PFA liquid-contacting construction.

  • No moving parts.
  • Connection sizes: 3/8, 1/2, 3/4 and 1 inch.
  • Fluid temperature range: 0–100°C.
  • Flow range and pressure rating depend on size and operating conditions.
  • Local display with output functions according to configuration.
Ryutai Kogyo ADF, GDF & GDR Water Flowmeters

Ryutai Kogyo ADF, GDF & GDR Water Flowmeters

Ryutai Kogyo ADF and GDF water flowmeters provide direct visual flow indication for equipment and water piping.

  • ADF: acrylic tube with Rc ½, Rc ¾ or Rc 1 connections.
  • GDF: compact glass tube design with Rc ½ connections.
  • Accuracy within ±5% of full scale.
  • Vertical installation with bottom-to-top flow.
Ryutai Kogyo Varible Area Flowmeter GTF

Ryutai Kogyo GTF, ATF, GTV & ATV Variable Area Flowmeters

Ryutai Kogyo GTF, ATF, GTV and ATV variable area flowmeters provide direct visual indication of compatible liquid and gas flow.

  • GTF: glass measuring tube with metal connection options.
  • ATF: acrylic measuring tube with metal connection options.
  • GTV: glass measuring tube with PVC connections.
  • ATV: acrylic measuring tube with PVC connections.
  • Vertical installation with bottom-to-top flow.
Kofloc RK120XM Flow Meter for Gas Mixing

Kofloc RK120XM Flow Meter for Gas Mixing

Kofloc RK120XM Flow Meter for Gas Mixing combines two to four variable-area flowmeters into one compact unit for simple multicomponent gas mixing.

Each gas line has an individual inlet, calibrated flow scale and precision needle valve. The individually adjusted gases combine and leave through a common mixed-gas outlet.

  • Mixing of two to four gas lines
  • Individual flow indication and adjustment for each gas
  • Flow ranges from 50 mL/min to 10 L/min
  • Maximum 10 L/min per line and 20 L/min total
  • Standard accuracy of ±2% full scale
  • Precision non-rotating needle valves
  • Brass or stainless-steel construction
  • Suitable for laboratory and research gas mixing
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