Liquid Flowmeter

Measure water consumption, monitor cooling-water flow or record oil transfer with a liquid flowmeter selected for your operating conditions. SL Measurement supplies water meters, oil flowmeters, flow indicators and liquid flow switches for different measurement tasks.

Start with the liquid and the reading you need: instantaneous flow rate, accumulated volume or an alarm when flow crosses a set limit.

Water flow and consumption measurement

For consumption records, choose a meter that totals the volume passing through the pipe. The Elster Kent H4000 range provides bulk cold-water metering, while the Ryutai Kogyo ADF water flowmeter indicates instantaneous water flow.

For cooling circuits and process equipment, establish the normal flow and the lowest flow that must be detected. Include the water temperature and any additives when requesting a selection.

Oil flowmeters for transfer and usage records

Tokico positive displacement flowmeters measure oil volume for transfer and usage records. Choose the mechanical or electronic version according to how you need to read, record and use the measurement.

For diesel, lubricating oil, heavy oil or crude palm oil, provide the liquid grade, minimum and maximum flow, operating temperature and viscosity. For heated oils, include start-up conditions and any heating or cleaning cycle so the meter construction and seals can be checked.

Local indication, remote signals or a flow alarm?

  • Local flow indication: Read the current flow at the instrument. Ryutai Kogyo and RCM offer instruments for suitable liquid applications.
  • Accumulated volume: Record water consumption or the volume of oil transferred using an appropriate totalising meter.
  • Remote monitoring: Specify the signal required by your PLC, recorder or display, then check the selected instrument's output and power requirements.
  • Flow alarm: Use a liquid flow switch when a contact signal is needed at a defined flow threshold.

For cooling-water alarms and equipment interlocks, see the RCM Flo-Gard II liquid flow switch. A switching signal identifies a threshold condition; it does not provide an accumulated-volume reading.

Details that help us select the right instrument

  • Liquid: Name, grade and any additives or suspended particles.
  • Flow range: Minimum, normal and maximum flow, with units.
  • Operating conditions: Pressure, temperature and viscosity where relevant.
  • Installation: Pipe size, connection standard, flow direction and available space.
  • Reading or signal: Local indication, total volume, pulse output, analogue output or alarm contact.
  • Replacement: Existing model code, nameplate photograph and connection details.

A matching pipe connection alone does not confirm that a replacement is suitable. The measuring range, materials and installation requirements also need checking.

Discuss your liquid flow application

Send your operating details or existing meter reference. We can help compare suitable options and provide pricing and availability.

Email your enquiry  |  WhatsApp us

For other measurement media, explore our complete flow instrument range.

Active filters

The Elster Kent H4000 Woltmann water meter measures accumulated cold water consumption for commercial, industrial and water distribution applications.

  • Measurement: Bulk cold water metering with a totalising register.
  • Sizes listed: DN50, DN80, DN100, DN150 and DN200.
  • Operating limits: Water temperature up to 50°C and working pressure up to 16 bar.
  • Installation: Suitable for horizontal, vertical or inclined pipelines, subject to installation requirements.

Purge meters are variable area flowmeters that used to measure small flowrates.
It is suitable for liquid, gas, oil and compressed air.
Ryutai Kogyo PGF-N series are calibrated to your operating temperature and pressure, as well as having scale range of your request.
It comes with stainless steel float and a metering a valve.

Ryutai Kogyo Metal Tube flow transmitter MCF can be linked with a remote indicator, integrator and recorder A reliable electronic transmitter housed in the aluminum indicator case provides current signals (DC, analog) proportional to measured flow rates for remote instruments.

MCF series are now used in the computer-controlled flow system.

The body that measures fluid flow has been designed with consideration having been given to many factors such as flow direction, flow rate, pressure, temperature, presence or absence of slurries and accessories required.

The Precisely manufactured transmitter which is enclosed in the indicator case provides reliable output signals.

Ryutai Kogyo Model GTF and ATF is widely used for its high quality and ease of use. This flow meter is in-line type, installed directly in your pipe line, and measure instantaneous flow rate of liquid or gas with high accuracy. Simple design and rigid construction enable you to check or disassemble the unit without any special knowledge. Besides above feature, you can select the material from our wide variety of materials to meet your specific application.l There are widely used for its high quality and ease of use

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.

RCM Flo-Gard II liquid flow switches detect when flow crosses a selected setpoint, providing a contact signal for an alarm or equipment interlock. Applications include cooling-water circuits, chillers and compatible process-liquid systems.

  • Switch options: One or two independently adjustable SPDT reed switches.
  • Construction: Metal body with material and seal options to suit the liquid.
  • Local indication: Optional LEDs show switching status.
  • Installation options: General-purpose and intrinsically safe configurations, subject to the required specification.

Tokico electronic positive displacement flowmeters measure oil volume with a local digital display and optional signal outputs. Select the appropriate configuration for diesel, light oil, heavy oil, lubricants or crude palm oil (CPO).

  • Measurement: Positive displacement principle with nominal accuracy of ±0.5% within the specified operating conditions.
  • Local indication: Electronic display for convenient reading at the meter.
  • System connection: Pulse, analogue and alarm functions depend on the selected counter configuration.
  • Model selection: Match the flow range, viscosity, temperature, pressure and connection requirements.

For CPO and heated oils: Confirm fluid temperature, viscosity and material compatibility before selecting the meter.

Tokico positive displacement oil flowmeters measure accumulated oil volume through a mechanical counter. Select the appropriate model for diesel, kerosene, heavy oil or other compatible oils.

  • Model families: FGB, FRO, FRP and FRA for different flow capacities.
  • Accuracy: Typically ±0.5% within the specified operating range.
  • Local reading: Mechanical totaliser, with reset-counter options.
  • Selection: Match the oil viscosity, temperature, flow rate and connection requirements.

For digital indication and signal-output options, see the Tokico electronic oil flowmeter.

Ryutai Kogyo Model ADF is in-line type, installed directly in your pipe line, and measure instantaneous flow rate of water with high accuracy. Simple design and rigid construction enable you to check or disassemble the unit without any special knowledge. Besides above feature, you can select the material from our wide variety of materials to meet your specific application.