Flowmeters – RTM3

The RTM3 flowmeter with floating ball is used to adjust and measure the flow of a gas that is to be delivered to patients through the respiratory tract.

The RTM3 should be connected to a source of pressured gas on the wall either using a direct probe or a rail mounting system. It must be fitted at its outlet either with a humidifier/nebulizer or with an outlet tubing nipple.



  • Specifications
  • Available versions
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Flowmeter with compensated pressure ensuring a perfect flowrate stability and accuracy. The scale works with the same pressure than the one of the network and is not sensitive to back-pressure.

Expanded scale providing higher reading accuracy for lower flowrates for 5 l/min and 15 l/min versions.

Type of “cartridge” knob, extremely reliable, easy-to-clean and ensuring an optimized adjustment. Perfect tightness of the knob thanks to its polyamide seat. We guarantee the closing of the knob during 5 years without any leakage.

Monoblock scale cover made of polyamide for a better sturdiness and a higher shock-resistance. No access to the scale by the patient.

A metallic sieve located at the inlet of the flowmeter protects the device against impurities of the gas network and thus ensures the protection of the patient. Filter porosity: 35 microns.

Body made of nickel-plated brass.

Unit serial number engraved on each flowmeter body for identification and traceability

O2, AIR médical, CO2, Carbogen


  • O2 and medical AIR: 1.5 l/min (paediatric), 5 l/min, 15 l/min, 30 l/min
  • CO2: 12 l/min
  • Carbogen: 15 l/min

Single or twin configuration

DUO configuration

Standards: AFNOR (French standard), BS (British standard), DIN (German standard), US OHMEDA (American standard), UNI (Italian standard), NORDIC (Scandinavian standard), CARBUROS METALICOS (Spanish standard), DISS (American standard), Czech standard, SANS/SABS (South African standard) and Korean/Japanese standard. Contact us for other standard.

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