Valve, in particular valve for fuel cell system

Abstract

To provide a valve, in particular a valve for a fuel cell system, which has an improved sealing effect together with reduced wear on a valve-seat sealing element.SOLUTION: A valve comprises a valve seat (48). On an inner circumferential region of the valve seat, a valve-seat sealing face (70) is provided which annularly surrounds a valve-opening center axis and which is in contact with a valve-element sealing face (74) when a valve element (66) is in a closed position. The valve seat includes an annular valve-seat support element (52) and an annular valve-seat sealing element (72) supported on the valve-seat support element. The valve-seat sealing face is provided on the valve-seat sealing element. The valve-seat support element includes a support-element body section (76) which supports the valve-seat sealing element against movement radially outward with respect to the valve-opening center axis. The valve-seat sealing element includes, on one axial side of the support-element body section, a sealing section (78) which protrudes beyond the support-element body section axially with respect to the valve-opening center axis. Substantially all of the valve-seat sealing face is formed on the sealing section.SELECTED DRAWING: Figure 6

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