Oval gear flow meter HDO 250 Niro/Niro
for oilfor chemicalsfor acids

oval gear flow meter
oval gear flow meter
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oval gear
for oil, for chemicals, for acids, for paint
stainless steel
Protection level
industrial, for low flow rates, for the petrochemical industry
Other characteristics
compact, with LCD display, high-accuracy
Volumetric flow rate

170 l/min (44.9 us gal/min)

Process temperature

120 °C (248 °F)

Process pressure

16 bar (232.06 psi)


The first flowmeter with touchscreen display and backlighting convinces with its simple, demand-oriented display and operability, the multilingual interface and the compact design. Thanks to the rotating Oval gear meter and the magnets placed on the measuring wheels, it enables accurate measurement of the volume flow and at the same time measures non-flammable liquids such as alkalis, mineral oils, hydrocarbons and solvents as well as highly flammable liquids precisely, quickly and above all efficiently. • Optionally in explosion-proof design • Media examples: Paints, lacquers, mineral oils, acids, alkalis, mineral oils, solvents Features & Advantages • Measurement according to the oval wheel principle • High measuring accuracy due to overtravel correction • Low pressure losses in the system • Touch screen display with self-explanatory, multilingual user interface • Relay module for quantity preselection can be retrofitted at any time • Approved according to ATEX Directive 2014/34/EU, category 2


*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.