Mecon - Model RE 250 -Rotameter Flow Meter
The proven robust construction of the RE 250 in the process industry also allows use under tough conditions. Thanks to the full-metal version, these float-type flow meters are ideal for applications with high temperatures and pressure conditions (pressure up to 400 bar, temperature -40 °C to +350 °C) and for measurement of cloudy and corrosive media.
The RE 250-series float-type flow meters with a standard length of 250 mm (9.84 inch) is suitable for measuring a range of liquids, gases and vapours in closed pipelines thanks to its full-metal design. The robust construction permits use under tough conditions (aggressive media, pressure up to 400 bar, temp. -40 °C to +350 °C). Various types of flanges, claddings and floats fulfil the conditions of the pharmaceutical and chemical industry.
The RE 250 float-type flow meter is used in the following industries:
- Plant and mechanical engineering
- Chemicals
- Building services equipment
- Food
- Metal extraction, production and processing
- Oil and gas
- Water and wastewater
Advantages of the RE 250 mechanical flow meter:
- Reliability (long-term stability, service life)
- Can be used for liquid, gas, vapour
- Measured media temperatures: -40 °C to +350 °C (optional -80 °C)
- Available for process pressure up to 400 bar
- Measurement range limit for liquids: 0,5 l/h to 100.000 l/h (water: +20 °C)
- Measurement range limit for gas: 0,015 m³/h to 3.000 m³/h (air: +20 °C, 1,013 bar)
- Precision: 1.6% per VDI/VDE 3513-2 (qG = 50%) - Liquids
- Silicon-free version available
- Simple device structure, easy to install and maintain
- No auxiliary energy for local display
- Simple interpretation of the measurements
- High repeat accuracy of the measurements
- Simple commissioning
- Cost-effective and simple measurement principle without auxiliary energy
- No calming section
- Manufacturer’s application expertise
- Short lead times
Special features of the RE 250 full-metal flow meter:
- Robust full-metal fitting with impact-resistant housing cap
- Can also be used for aggressive and combustible measured media
- Suitable for use at high pressure and high temperatures
- Can be equipped with optional heating and cooling jackets
- Dirt-resistant float guide
- Float cushioning, for pulsing flows or low operating pressures (recommended esp. for gas measurements)
- Optionally available with 4 … 20 mA with HART® protocol interface
- ISO 228: G ¼ - G 3
- ANSI B.1.20.1: NPT ¼“ - NPT 3“
- DIN EN 1092-1: DN 15 – DN 150
- ANSI B 16.5: ½“ – 6“
The position of the float is transferred contactlessly to the display unit via a magnet system and shown there directly on the scale. No external auxiliary energy is required for this.
- Measuring ranges:
- Liquids¹: 0,5 – 100.000 l/h
- Gases:²: 15 - 3.000.000 l/h
- Measuring accuracy acc. to VDI/VDE 3513-2 ( qG=50 % ) :
- Liquids: 1,6
- Gases: 2,0
- Pressure limits :max. 400 bar
- Temperature limits :-40 °C to +350 °C
- Medium-affected parts :Stainless steel, PTFE, Hastelloy
- Float materials :Stainless steel, PTFE, Hastelloy
- Flow direction :vertically upwards
- Process connections :
- DIN ISO 228: G ¼ - G 3
- ANSI B.1.20.1: NPT ¼“ - NPT 3“
- DIN EN 1092-1: DN 15 – DN 150
- ANSI B 16.5: ½“ – 6“
- Options :
- Magnetic spring contact(s)
- Inductive contact(s)
- Analog current output 4-20mA
- Float dampingHART®-protocol
- PROFIBUS® PA-interface
- ATEX version