IMPROVED HYDRAULIC BRAKE ARRANGEMENT FOR OFF-ROAD VEHICLE

Hydraulic brake arrangement (1) for controlling rear and/or front brakes (3, 4) of an off-road vehicle, comprising a source (2) of fluid in pressure, a power stage valve (5) fluidly interposed between source (2) and rear and/or front brakes (3, 4) and a pilot stage (6), pilot stage (6) being configured to provide a first and a second hydraulic load signals to control power stage valve (5) to allows fluid from source (2) to flow towards rear and/or front brakes (3, 4), power stage valve (5) comprising a gain valve (26), a logic valve (33) and a plurality of security valves (45a, 45b, 38), fluidically in series one with the other in a configuration to allow fail-safe and hydraulically-controlled actuation of rear and/or front brakes (3, 4).