Meidinger AG’s belt-driven GRN fans offer a wide range of operating points that can be achieved even without a VFD, with various belt ratios that allow the impeller speed.
With belt-driven GRN fans, a wide range of operating points can be achieved even without a VFD.
Various belt ratios allow the impeller speed and thus the characteristic curve to be adjusted.
With a maximum speed of 5800 rpm, a pressure of up to 160 mbar is achieved.
Example Fan Type: EX-S-GRN48/120/500/2G
Impeller mounted on flanged bearing
Standard flange size DN125 PN10 (others on request)
Flow rate up to 1500 m3/h
Pressure up to 140-160 mbar (depending on the flow rate)
Motor power from 2.2 kW up to 11 kW (400V/50Hz)
Belt drive
Housing material GGG40 / Impeller from aluminum
ATEX II2G or II3G (for zone 1 and 2)
Gastight ISO EN 13349 cat. H1
Standard colour RAL 7032 (others on request)
Belt Drive – Double Stage (GRN/2G-2)
With two fans connected in series and mounted on a common base frame, the pressure can be doubled. This allows the maximum permissible pressure of 300 mbar to be reached.
Example Fan Type: EX-S-GRN48/120/500/2G-2
Impeller mounted on flanged bearing
Standard flange size DN125 PN10 (others on request)
Flow rate up to 1500 m3/h / Pressure up to 300 mbar
Motor power from 2 x 2.2 kW up to 2 x 11 kW (400V/50Hz)