HYDRAULIC STEERING SYSTEM

A hydraulic steering system (1) is described comprising a steering unit (3) and a priority valve (14), said steering unit (3) comprising a working port arrangement (L, R) having two working ports, a supply port arrangement (P, T) having a high pressure port (P) and a low pressure port (T), a load sensing port (LS), a main flow path (7) having a main bleed (A1) and a metering device (8) and being arranged between said high pressure port (P) and said working port arrangement (L, R), an amplification flow path (9) having an amplification bleed (Au) and being arranged between said high pressure port (P) and said working port arrangement (L, R), said main bleed (A1) and said amplification bleed (Au) being controlled together by means of a steering handle (6) and being closed in neutral position of said steering handle (6), wherein said priority valve (14) comprises a priority outlet (CF) connected to said high pressure port (P) of said steering unit (3), a valve element (15) moveable in a priority direction to connect an inlet (P1) of said priority valve (14) to said priority outlet (CF), and a load sensing connection (LS1) connected to said load sensing port (LS) of said steering unit (3), said priority outlet (CF) being connected to said load sensing connection (LS1) via a priority valve bleed (18), a pressure at a point downstream said priority bleed (18) acting on said valve element (15) in said priority direction, wherein said load sensing port (LS) is connected to said low pressure port (T) via a drain bleed (Ad) being open in neutral position of said steering handle (6) and closing upon actuation of said steering handle (6) out of said neutral position.