IGTM Gas Turbine Meter
The Vemm tec IGTM ( International Gas Turbine Meter ) is a highly accurate flow meter, approved for custody transfer measurement, equipped with electronic pulse outputs and a mechanical counter.
The operation of International Gas Turbine Meter is based on the measurement of the velocity of gas. The Flowing gas is accelerated and conditioned by the meter’s straightening section. The straightening vanes prepare the gas flow profile by removing undesired swirl, turbulance and asymmetry beforre the gas flows to the turbine wheel. The dynamic forces of the flowing fluid cause the rotor to rotate. The turbine wheel is mounted on the main shaft, with special high precision, low friction ball bearings. The turbine wheel hal helical blades that have known angle relative to the gas flow. The conditioned and accelerated gas drives the turbine wheel with an angular velocity that is proportional with the gas velocity.
The totating turbine wheel drives the index with the eight digit menchanical counter via shafts and gears.
The volume and flow rate can also be indicated electronically. A proximity probe generates a signal at each passing blade of the turbine wheel. With the device-specific K-Factor and the number of pluses the passed volume can be calculated. With the measured frequency the flow rate can be determined.
The IGTM in its standard design can be used for all non-aggressive gases, such as natural gas, methane, propane, butane, city gas and fabricated gas, air, nitrogen, etc.
Material Of Construction :
Housing : Ductile Iron (EN-GJS-400-18-LT), Carbon Steel (Cast Or Welded).
Straightening Vane : Aluminium
Turbine Wheel : Aluminium
Metering Insert : Aluminium
Bearing block : Aluminium
Bearings : Stainless Steel
Shafts : Stainless Steel
Gears : Stainless Steel or Synthetic Material
Magnetic Copling : Stainless Steel
Index Hard : Aluminium
As standard the IGTM is designed to operate at temperatures between-10◦C to 60◦C .