Hydraulic Power packs are used as reliable power supplying solutions for heavy duty industrial equipments, automobiles and other hydraulic machines. These power packs use enclosed fluid for effective conveying of energy among different sources. This energy transfer generates liner motion and rotary motion required for smooth operation of pumps, motors and other hydraulic components. Application of temperature controller and multi stage pressure based networks for movement of fluid are the important aspects of the mechanism of these Hydraulic Power packs.