NEO (S)D

NEO (S)D Double-stage rotary vane vacuum pumps with integrated oil-mist filtration

Triple-hitting vacuum technology for a clean, quiet and long-running performance

Leybold NEO D oil sealed rotary vane pumps excel in industrial and analytical application with their low noise levels, smooth and clean operation. When processes rely on continuous vacuum, reliable, high-performance vacuum technology is essential. NEO D, with less noise and fewer emissions contributes to a better work environment with higher levels of productivity in demanding applications.

NEO D pumps are double stage oil sealed rotary vane pumps. Oil is injected into the pump chamber for sealing, lubrication and cooling of the pump and is recycled from the pump’s oil reservoir and filtered. The lubrication system delivers continuous operation at high intake pressures (max. 1000 mbar abs.) making the NEO D pumps versatile to pump from atmosphere down to ultimate pressure. The oil carried with the process gas is first roughly separated in the oil box and then in the integrated exhaust filters where the fine oil mist is trapped. The separating system lowers the exhaust emission and is free of oil mist (≤1 ppm) delivering a 1000 times cleaner working environment as compared to competitive pumps without this technology.

The NEO D excels also in vapor pumping performance: thanks to its integrated exhaust demister, which is at pump temperature. Thus, there is no condensation in the pump and vapors cross the pump in gas phase. External oil demisters have the disadvantage of being at ambient temperature what favors condensation. Condensed vapors will return then into the pump which may deteriorate their performance and lubrication.

To push the vapor handing performance further, a specific NEO 16 SD version has been developed, with a slightly higher but still comfortable operating temperature, to double its vapor tolerance!