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Ring Main Hydraulic Power Packs

Branch Hydraulic Systems, part of Group HES, your hydraulic power unit experts, have supplied OEM and Aerospace facilities with Skydrol LD4 and Mineral Oil Systems - with high flows of up to 400 lpm and pressures of up to 480 bar. 

These hydraulic power units powered two separate hydraulic ring mains. Branch Hydraulic Systems provided design, manufacture, installation and commissioning services for this build. 

The unit on the left supplied a hydraulic ring main with Skydrol LD4 at flow rates of up to 180lpm and pressure of 420 bar. Constant pressure in the ring main was achieved by varying the speed of the pump motors, allowing pump flow to match ring main demand.

The unit on the right supplied a mineral oil ring main at flow rates of up to 180 lpm and pressures of 350 bar. It uses conventional pressure compensated pumps to maintain a constant pressure.


Hydraulic Ring Main Power Packs


If you require a hydraulic power pack for a ring main or any other hydraulic power unit, please call to start your project today on 01452 730562 or email enquiries@grouphes.com, alternatively visit the Branch Hydraulic Systems' website