Patent ID: 9267606
Filing Date: 2016-02-23
CPC Classification: F16K,Y10T

Claim Text:
1. A device for a valve-seat arrangement in a hydraulic valve provided with a bidirectional secondary barrier including a first, upstream seal and 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 an axial direction towards a valve seat; 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 extends radially outwards from an inner diameter of the seal-supporting element; the second supporting abutment surface extends radially inwards from an outer diameter of the seal-supporting element; and the first supporting abutment surface is arranged to abut supportingly against a first shoulder arranged in a valve-seat holder, and the second supporting abutment surface is arranged to abut against a second shoulder arranged in a valve housing.