Oval gear flow meter OG6
for liquidsDN40 - 1"1/2in-line

oval gear flow meter
oval gear flow meter
oval gear flow meter
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oval gear
for liquids
Pipe diameter
DN40 - 1"1/2
in-line, threaded
stainless steel, aluminum
with pulse output, digital output
Protection level
rugged, IP67
industrial, for water treatment, for the petrochemical industry, for the oil and gas industry
Other characteristics
digital, compact, high-pressure, reed switch
Process pressure

Min.: 0 bar (0 psi)

Max.: 400 bar (5,801.51 psi)

Process temperature

Min.: -40 °C (-40 °F)

Max.: 150 °C (302 °F)

Volumetric flow rate

Min.: 2 l/min (0.5 us gal/min)

Max.: 200 l/min (52.8 us gal/min)


0.5 %, 1 %


0.1 %


The rugged OG6 rugged oval gear flowmeter is designed to give high performance with a low cost of ownership. It has a standard flow range from 2.0 to 200 L/min on 30 cSt oil and 10 to 200 L/min on water like liquids. The standard inlet and outlet are 1½” female threads. For OEM use alternatives, including manifold mountings, are available. The standard models are 316 St St or Aluminium with Viton® ‘O’ ring seals. At the heart of the OG6 rugged oval gear flowmeter are a pair of toothed oval gears one of which contains chemically resistant magnets, the gears rotate freely on robust bearings. Rotation is detected through the chamber wall by a Hall Effect detector or a reed switch giving approximately 21 pulses per litre passed. The output is an NPN pulse or a voltage free contact closure either of which is readily interfaced with most electronic display or recording devices. This combination of materials and technology ensures a long life product with reliable, accurate operation throughout. Excellent chemical resistance Rugged construction Individual calibration High viscosity capability Low pressure loss No flow conditioning required Hall, reed switch or Namur sensor Accuracy 1.0 % reading water 0.5 % reading oil (30 cSt) ±0.5% reading * 0.1% repeatability IP67/NEMA 4 protection Models to 400 Bar * When used with our metra-smart instrument The OG6 rugged oval gear flowmeter is Ideal for Engine test Oil flow High viscosity fluids OEM equipment OG6 Rugged Oval Gear Flowmeters – Standard Materials of Construction Body and cap – 316 St St Aluminium ‘O’ Ring – Viton® Gears – PEEK Magnets – Ceramic
*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.