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Dual-stage pumps consist of a high-pressure section （radial piston pump, HP） and a directly coupled low-pressure section （gear pump, LP）. The pump is usually driven by one single electric motor, which is connected with the dual-stage pump by means of a flange and a coupling. Compact control systems （e.g. for presses） can be created by mounting two-stage valves and valve banks onto the cover plate of hydraulic power packs.
Overview of the product type
Dual stage pumps type RZ