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Water and Oil Indicators/Monitors – SMALL

The small series units are designed to be robust, highly versatile and extremely reliable in the harshest of environments. They continuously monitor flow with a local indication, through a mechanical pointer, switch, transmitter or digital rate totaliser and can be manufactured in a variety of materials to suit a wide range of liquid, air and gas applications.

Suitable for practically all liquids and gases (safe gas). A spring-loaded valve plate which is deflected proportionate to the flow in line. A mechanical pointer indicates the flow on an individually calibrated scale. Whether you are looking for an Oil Flow Monitor or a Water Flow Monitor our Small Series will be ideal for your application.

Maximum Flow Rates

¾” – 1 ½”

0 – 400 l/min

1 ½” – 2”

0 – 500 l/min

2 ½” – 2”

0 – 800 l/min

Maximum Pressure

Low pressure up to 300psi (20 Bar)

Medium pressure up to 725psi (50 Bar)

High pressure up to 300psi (200 Bar) *


  • +/- 3% accuracy across full range
  • Calibrated in any unit of measure.
  • Single or dual scale options
  • Individually calibrated.
  • Simple modular design
  • Low pressure drops.
  • Viscosities up to 600cSt
  • 1% rate of repeatability switch set point – accurate & reliable.
  • Installed in any position.
  • Weatherproof enclosure box
  • Capable of twice the maximum indicated flow.
  • Available in a wide range of materials


  • Water
  • De-Ionized Water
  • Soluble Oils (Glycols)
  • Petroleum Based Fluids
  • Synthetic Based Fluids
  • Coolants
  • Corrosive Fluids
  • Paints
  • Solvents
  • Air & Gases


  • SPDT 3 & 4 wire mechanical switch (gold available)
  • DPDT 6 wire mechanical switch
  • 4-20mA Output
  • 0-10v Potentiometer
  • Digital Rate Totaliser
  • ATEX variants available
RHM Sensors

Thermal Mass Flow Meter


Ultrasonic Flow Meter


Magnetic Flow Meter

Flow Switch

Flow indicators and Flow Switches

Energy Meters

Wastewater Flowmeters

Positive-Displacement Flowmeters

Chemical Flowmeter

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