Operating Principle

The principal of the Rotary Gas Flow Meter is well known.It is a positive displacement type of meter, passing pre-determined volumes of gas by means of two counter-rotating rotors or impellers. Four time per revolution a fixed unit of volume is displaced through the measurement chambers. The flowing gas volume is proportional to the number of revolutions of the output. The output of this model Rotary Gas Meter is a special designed magnetic coupling where one part is fitted inside the meter body and the associated part is placed in the read-out unit.

The read-out unit can either be a mechanical index or an elecronic index, with or without volume conversion and communication functions.

Technical Data

Application:
Media: Natural Gas, Town Gas, Propane, Inert Gases
Industry: Gas Supply, Heating Manufacture, Chemical Industry.

Pressure Ratings:
- Pressure rating for PN 10/16 and ANSI 150
- High Pressure Version is under development
- Various flanges are available on request

Nominal Diameters:
1-1/2" up to 6" (DN40-DN150)

Measuring Range:
160:1 minimum or better at atmospheric conditions.
(EU standard=1:20)

Flow Rate:
0.5 m3/h up to 1.000 m3/h

Repeatability: 0.1%

Measuring Accuracy:
0.2 Q max to Q max: +/- 1% or better
Q min to 0.2 Q max: +/- 2% or better

Material:
Body: Aluminium Alloy
Rotor: Aluminium Alloy

Lubrication: Self Lubricated Type