A valve-seat arrangement for a hydraulic valve provided with a bidirectional secondary seal, said arrangement including: a valve seat to cooperate with a closing element , a first, upstream seal , a second, downstream seal , and an intermediate, axially movable seal-supporting element , wherein the seal-supporting element includes, at a first end, an annular first seal abutment surrounded by a second supporting abutment surface displaced in the axial direction towards the valve seat ; and the seal-supporting element includes, at a second end, an annular second seal abutment surrounding a first supporting abutment surface displaced in the axial direction away from the valve seat , the first supporting abutment surface extending radially outwards from an inner diameter (IDs) of the seal-supporting element ; and the second supporting abutment surface extending radially inwards from an outer diameter (OD S ) of the seal-supporting element ; the first supporting abutment surface being arranged to abut supportingly against a first shoulder arranged in a valve-seat holder , and the second supporting abutment surface being arranged to abut against a shoulder arranged in a valve housing , wherein the outer diameter (OD 1 ) of the first seal is at least as large as an inner diameter (ID) of the contact surface of the valve seat against the closing element ; the outer diameter (OD) of the contact surface is at least as large as the inner diameter (ID 2 ) of the second seal ; the inner diameter (ID 1 ) of the first seal is smaller than the inner diameter (ID 2 ) of the second seal ; and the outer diameter (OD 2 ) of the second seal is larger than the outer diameter (OD 1 ) of the first seal . a valve seat to cooperate with a closing element , a first, upstream seal , a second, downstream seal , and an intermediate, axially movable seal-supporting element , wherein the seal-supporting element includes, at a first end, an annular first seal abutment surrounded by a second supporting abutment surface displaced in the axial direction towards the valve seat ; and the seal-supporting element includes, at a second end, an annular second seal abutment surrounding a first supporting abutment surface displaced in the axial direction away from the valve seat , the first supporting abutment surface extending radially outwards from an inner diameter (IDs) of the seal-supporting element ; and the second supporting abutment surface extending radially inwards from an outer diameter (OD S ) of the seal-supporting element ; the first supporting abutment surface being arranged to abut supportingly against a first shoulder arranged in a valve-seat holder , and the second supporting abutment surface being arranged to abut against a shoulder arranged in a valve housing , wherein the outer diameter (OD 1 ) of the first seal is at least as large as an inner diameter (ID) of the contact surface of the valve seat against the closing element ; the outer diameter (OD) of the contact surface is at least as large as the inner diameter (ID 2 ) of the second seal ; the inner diameter (ID 1 ) of the first seal is smaller than the inner diameter (ID 2 ) of the second seal ; and the outer diameter (OD 2 ) of the second seal is larger than the outer diameter (OD 1 ) of the first seal . <EOS>