Leybold has reduced the energy consumption of their diffusion pump series DIP and DIJ by applying intelligent technologies and optimising the design. Now a number of optimised models and accessories are available. The DIJ family offers connections for both ANSI and ISO flange components as well as various electrical variants. The five-stage nozzle system of these pumps has been improved for the pressure range from 10-2 to10-3 bar. The greatest energy savings potential was achieved by selecting an improved heating system and adjusting it to produce the propellant stream. In addition, energy is saved by an optimised arrangement of the heating elements in the boiler room, the loss-free energy transmission and the thermal insulation. An integrated energy regulator that is based on monitoring the oil and heater temperature in the boiler room makes sure that the applied propellant fluid works at its optimum temperature. In total, energy savings of up to 50 % compared to unregulated standard pumps are possible.
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