Multi circuit protection valve assembly for a pressurized fluid system of a commercial vehicle, said multi circuit protection valve assembly comprising a fluid inlet , a first brake circuit outlet , a second brake circuit outlet , an additional supply circuit outlet , an overflow valve subassembly with two overflow valves and a bypass valve arrangement for bypassing said overflow valves , wherein said multi circuit protection valve assembly comprises: - a port body comprising at least said first and second brake circuit outlets and internal base channels , - a first valve body being provided on top of said port body in a stack direction (v) and comprising first internal fluid channels , - a second valve body being provided on top of said first valve body in said stack direction (v) and comprising second internal fluid channels , - a first gasket provided between said port body and said first valve body , for sealing air passages between said internal base channels and said first internal channels and defining first gasket compartments - a second gasket provided between said first valve body and said second valve body , for sealing air passages between said first internal fluid channels and said second internal fluid channels and defining second gasket compartments , wherein said bypass valve arrangement and/or said overflow valve subassembly are at least partially received in said first gasket compartments or said second gasket compartments , wherein said port body and said valve bodies are forming a stack in said stack direction (v), which stack is secured by at least one holding means . wherein said multi circuit protection valve assembly comprises: - a port body comprising at least said first and second brake circuit outlets and internal base channels , - a first valve body being provided on top of said port body in a stack direction (v) and comprising first internal fluid channels , - a second valve body being provided on top of said first valve body in said stack direction (v) and comprising second internal fluid channels , - a first gasket provided between said port body and said first valve body , for sealing air passages between said internal base channels and said first internal channels and defining first gasket compartments - a second gasket provided between said first valve body and said second valve body , for sealing air passages between said first internal fluid channels and said second internal fluid channels and defining second gasket compartments , - a port body comprising at least said first and second brake circuit outlets and internal base channels , - a first valve body being provided on top of said port body in a stack direction (v) and comprising first internal fluid channels , - a second valve body being provided on top of said first valve body in said stack direction (v) and comprising second internal fluid channels , - a first gasket provided between said port body and said first valve body , for sealing air passages between said internal base channels and said first internal channels and defining first gasket compartments - a second gasket provided between said first valve body and said second valve body , for sealing air passages between said first internal fluid channels and said second internal fluid channels and defining second gasket compartments , wherein said bypass valve arrangement and/or said overflow valve subassembly are at least partially received in said first gasket compartments or said second gasket compartments , wherein said port body and said valve bodies are forming a stack in said stack direction (v), which stack is secured by at least one holding means . <EOS>