US 12,467,540 B2
Closing member of a gas valve for very high pressure
Paul Muzzo, Yutz (FR); Guillaume Massin, Heisdorf (LU); and Philippe Schmitz, Steinsel (LU)
Assigned to ROTAREX S.A., Lintgen (LU)
Appl. No. 17/802,330
Filed by Rotarex S.A., Lintgen (LU)
PCT Filed Feb. 25, 2021, PCT No. PCT/EP2021/054711
§ 371(c)(1), (2) Date Aug. 25, 2022,
PCT Pub. No. WO2021/170731, PCT Pub. Date Sep. 2, 2021.
Claims priority of application No. 101650 (LU), filed on Feb. 25, 2020.
Prior Publication US 2023/0101730 A1, Mar. 30, 2023
Int. Cl. F16K 1/30 (2006.01); F16K 1/46 (2006.01); F17C 13/04 (2006.01)
CPC F16K 1/302 (2013.01) [F16K 1/46 (2013.01); F17C 13/04 (2013.01); F17C 2205/0323 (2013.01); F17C 2205/0382 (2013.01); F17C 2223/036 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A valve closing member for cooperating with a valve seat, said valve closing member comprising:
a body with a front circular face forming a central protrusion along a longitudinal axis of the body;
a seal forming a ring fitted on the front circular face and around the central protrusion; and
a retainer forming a ring surrounding the seal and attached to the body for retaining the seal on the body, the retainer comprising an inner surface contacting the seal and being L-shaped with a shorter radial branch and a longer longitudinal branch comprising an intermediate inclined portion forming a ramp for radially compressing the seal during mounting of the retainer on the seal,
wherein the seal shows a radially inner surface contacting a radially outer surface of the central protrusion, the radially inner surface and radially outer surface being both cylindrical, the radially outer surface showing, on a longitudinally intermediate portion thereof, at least one circular groove into which the seal is radially pressed by the retainer.