New modular system for process gas booster - Generation GMd AERZEN offer includes 16 variants The variety and application possibilities of AERZEN process gas blowers are unrivalled anywhere in the world. Now a new GMd series is available that bundles many variants and leaves no wish unfulfilled. In the AERZEN zero-emission concept, the small GMd sizes do not have a drive shaft seal, but only the can of the magnetic coupling, which serves for torque transmission. The cans of the magnetic couplings are made of non-conductive materials, so that even at high speeds there are no eddy currents and associated heating.Cost advantage without any loss of qualityGMd series for volume flows up to 14,000 m³/h at differential pressures of up to 1 barOn larger machines, the drive shaft is reliably sealed by an oil-purged dual-acting mechanical seal with thermosiphon cooling. Thanks to the oil splash lubrication of the roller bearings and the timing gears, separate pressure oil lubrication is not required. This results in a cost advantage without any loss of quality. The robust, two-lobe rotary pistons are always sealed gas-tightly. The oil chambers and the conveying chamber are separated by PEEK piston ring seals. It is also possible to purge these seals with gas. With a total leak rate of <10-³ mbar*l/s, all blower stages of the GMd series can be described as hermetically sealed. The housing flanges are sealed with O-rings. With a design pressure of 7 bar(g) and explosion pressure spike resistance of 13 bar(g), the nodular iron housing ensures particularly high operational reliability.The modular system of the new “GMd” generation consists of 16 sizes.
AERZEN divests its Gas Meter division Aerzener Maschinenfabrik GmbH successfully sold its product division rotary piston gas meters to RMA Rheinau GmbH at the end of 2018.The AERZEN rotary piston gas meter has been a product rich in tradition at Aerzener Maschinenfabrik since 1930. Due to their design, however, demand and sales of measuring instruments were concentrated primarily on the German market. On the basis of the company’s international growth strategy, which mainly focuses on compressor technology and application specialisation, the AERZEN gas meter no longer fits in with the future target orientation. Against this background, the management decided to sell this product division to another company in the industry with good know-how.“For AERZEN it was very important to find a buyer who would offer the product range to our long-standing customers with the usual high quality,” says the CEO, Klaus-Hasso Heller. “We are very pleased that we have now found a reliable partner in RMA, based in Rheinau, who will not only continue the AERZEN technology, but will also develop it further in this way,” adds Klaus-Hasso Heller.
