M+S Hydraulic BKH valve blocks are developed to protect the components of the hydraulic circuit: such as pumps, steering units and cylinders – from overloads. Impacts and cavitation. Some of their advantages are: easy integration into any hydraulic circuit, easy mounting to the steering unit, and quick an easy hose connections. Depending on the design and the built in valves the BKH valves could be divided: BKH1…BKH5 and BKHR, with BKH5 designed for XY steering units only. The maximum flow rate is in compliance with the whole range of HKU and XY steering units but not more than 80 l/min. The pressure settings for the entry relief valves are given in the table.