Closing member of a gas valve for very high pressure
AssigneeRotarex S.A.
InventorsPaul Muzzo, Guillaume Massin, Philippe Schmitz
Life of this patent
Estimating the term…
Abstract
A valve closing member for cooperating with a valve seat, comprising: a body 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; 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 at least one circular groove into which the seal is radially pressed by the retainer.
Claims14
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.
A valve for compressed gas, said valve comprising:
- a valve body with a gas inlet, a gas outlet and a gas passage fluidly interconnecting the gas inlet and gas outlet;
- a seat in the valve body and crossed by the gas passage;
- a valve closing member configured for cooperating with the seat for selectively opening and closing the gas passage;
- and
- an actuating mechanism for moving the closing member between an opening position and a closing position of the gas passage;
- wherein the valve closing member comprises:
- 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.
Dependencies are inferred from the claim text.