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 of the contact surface of the valve seat against the closing element; the outer diameter 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 of the contact surface of the valve seat against the closing element; the outer diameter 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.