{"id":2630,"date":"2019-07-22T15:21:32","date_gmt":"2019-07-22T13:21:32","guid":{"rendered":"https:\/\/vakuumtec.de\/zrs-250-4200-m%c2%b3-h"},"modified":"2023-05-11T21:07:19","modified_gmt":"2023-05-11T19:07:19","slug":"zrs-250-4200-m%c2%b3-h","status":"publish","type":"post","link":"https:\/\/vakuumtec.de\/en\/zrs-250-4200-m%c2%b3-h","title":{"rendered":"ZRS 250 \u2013 4200 m\u00b3\/h"},"content":{"rendered":"\n
Atlas Copco ZRS 250 \u2013 4200 m\u00b3\/h<\/h5>\n\n\n\n

Atlas Copco ZRS pumps are mechanical Roots pumps based on the Roots principle and perfectly suitable for applications in which high volume flow rates are required. In this pump a Roots rotor connected to a hydrokinetic coupling is powered directly by an engine, while the second Roots rotor is driven one-to-one by the first Roots rotor via a synchronisation gearbox, causing it to run in the opposite direction. <\/p>\n\n\n\n

As a basic requirement, this pump must be operated with a backing pump able to create a high pressure difference to the atmospheric pressure. Depending on the process or the required final pressure, a single- or two-stage rotary vane pump or screw pump (GHS, DHS) are commonly applied. If a ZRS pump is linked with a dry screw pumps such as the DHS, an entirely oil-free pump mechanism can be achieved. The tried and tested shaft seals ensure that no oil reaches the pump\u2019s suction chamber. This way, the performance of the Roots pump can be maintained during applications that require a maximum of cleanliness. <\/p>\n\n\n\n

ZRS pumps have a unique and patented hyrdokinetic fluid drive which couples the engine to the pump mechanism. The hydrokinetic drive offers the following benefits:<\/p>\n\n\n\n