LM GN Flow Meters Litre Meters Pelton Wheel Series

Also known as a radial turbine the highly efficient Pelton Wheel meter has some major advantages. The very large blade area compared with the flow inlet port size produces an exceptionally wide range flowmeter that can measure very low flows. The flow through the inlet of the meter is accurately directed onto the rotor which rotates at a speed in linear proportion to the flow rate.

LM GN Flow Meters Litre Meters Pelton Wheel Series

A small sensing coil detects the ferrites mounted in the rotor blade tips as they pass. No drag is imposed on the rotor which assists in the measurement of extremely low flows. Sapphire bearings provide very low friction mechanically robust bearings with long life characteristics. Turndown can be as high as 280:1. Each size Pelton wheel flowmeter has its flow rate range controlled by jet size. For example, the LM24 has a 2.4mm diameter jet and a flow range of 0.03 to 4.3 liters per minute.

The LMGN has 6 distinct standard ranges and push-on hose connections.


Typical Applications

  • Canning
  • Fuel
  • Batch Control
  • Aerospace
  • Military
  • Mixing
  • Chemicals
  • Agricultural
  • Low viscosity
  • Film Processing
  • Glass
  • Textile
  • Rubber & Plastic
  • Automotive
  • Spraying
  • Low Flow

Key Features

  • Compact
  • Single Moving Part
  • Wide Flow Range, up to 280:1
  • Very Low Flow Measurement
  • Proven since 1975
  • Low Maintenance
  • Tolerant of particulate up to 100+ microns
  • 35,000 installed
  • Highly Durable
  • Preserves Molecular Integrity of fluid
  • Low-pressure drop (<0.5 bar typical)


Technical Specifications LMGN Range


0.25 l/min

Also known as 01GN


1.3 l/min

Also known as 05GN


4.3 l/min

Also known as 24GN


6.3 l/min

Also known as 45GN


15 l/min

Also known as 90GN


28 l/min

Also known as 220GN

  • Accuracy ±2% of actual reading for the top 90% of range.
  • -0.5% FSD for the bottom 10% of the range.
  • Repeatability ±0.2% reading over top 90% of range

Pressure Rating

Dependent on temperature and material (2 or 5 bar)

Temperature rating

-25 and -50°C - +40 or +60°C dependent on material and pressure

Viscosity Range

0.5 to 10cP

Recommended Filtration

A 100-micron filter is advisable for 100% long-life serviceability.


Refer to drawings

Pressure Rating

Dependent on temperature and material (2 or 5 bar)

The ring assembly with the rotor is the same size irrespective of flow rate and jet size. The LM GN has hose connections. The temperature and pressure rating reflects this.

Download Datasheet: LM GN Flow Meters Litre Meter Pelton Wheel Series

Reference: litremeter.com

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