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Flow indicators

Flow indicators

Elesa flow indicators offer a simple and effective way of visually monitoring flow through pipe systems in many applications across many industries.

Our HVF and HVF-E ranges are made using technopolymer and stainless steel to produce a high-performing and reliable indicator. These helical flow indicators are designed to visually signal the passage of a fluid in a tube. As versatile components, they are normally used in lubrication systems, refrigeration, heating, and water treatment. They are best suited to applications in the chemical, food, and pharmaceutical industries.

We are committed to supplying products with varying specifications to meet user needs. In our catalogue you will find indicators with diameters of:

  • 1/4 NPT
  • 1/2 NPT
  • 1 NPT
  • 3/8 NPT
  • 3/4 NPT
  • G 3/8
  • G 3/4
  • G 1/4
  • G 1/2
  • G 1

These components can be installed either vertically or horizontally to provide visual indicators of transparent viscous liquid. When mounting on rigid tubes, it is recommended to place the indicator perfectly aligned with the tubes.

We have produced the tubular visor of our indicators using reliable Pyrex® glass. They are suitable for use with solutions containing glycol and provides maximum visibility of the flow from every angle.

To ensure perfect performance of the terminal flanges, axle, and helical rotor, we have used a material that is at the forefront of innovative technology: technopolymer. This strong yet lightweight plastic is an engineering advancement with properties to rival metal, while being resistant to heat and chemical exposure.

Ideal for use with liquids at high temperatures, our indicators can withstand up to 100°C.

Our HVF-E range includes indicators with a flow-meter sensor. The inductive sensor, completely separated from the liquid passage area, reads the passage of the two metal clips mounted on the rotor. When connected to a PLC, the sensor can provide a reading of the flow rate.

As well as the visual flow indicators available in our catalogue, we are able to accommodate special executions on request. These modifications can include stainless steel bushings, bushings with NPT conical gas threads, and axis and rotor propeller in blue rather than the standard red.

You can find all of these components in the Elesa catalogue.