Abstract: The present invention relates to an expansion valve intended to be arranged in a fluid passage between an upstream conduit and a downstream conduit, the expansion valve comprising: —a tubular valve body which is provided, in an upstream axial end section, with at least one upstream orifice intended to be in communication with the upstream conduit and, in a downstream axial end section, with at least one downstream orifice intended to be in communication with the downstream conduit, the downstream orifice and the upstream orifice being connected by a main channel, —a shut-off device which is movable between a closed position and an open position with respect to the downstream orifice. The shut-off device includes a slider which is mounted to slide axially on the downstream axial end section of the valve body.

Abstract: The present invention relates to an expansion valve intended to be arranged in a fluid passage between an upstream conduit and a downstream conduit, the expansion valve comprising: —a tubular valve body which is provided, in an upstream axial end section, with at least one upstream orifice intended to be in communication with the upstream conduit and, in a downstream axial end section, with at least one downstream orifice intended to be in communication with the downstream conduit, the downstream orifice and the upstream orifice being connected by a main channel, —a shut-off device which is movable between a closed position and an open position with respect to the downstream orifice. The shut-off device includes a slider which is mounted to slide axially on the downstream axial end section of the valve body.

Abstract: The invention relates to a valve comprising a tubular body in which a valve stem moves axially, the head of the stem cooperating with a corresponding seat on the valve body, said stem acting against a coiled spring that is housed in a chamber of circular cross-section and disposed between a bearing zone at a first end of the chamber and the stem in order to return the stem to the seat, said spring comprising: a first end with a large turn of a diameter substantially identical to a diameter of the chamber at the first end; and a second end with a small turn connected to the shank or the head of the stem and a second large turn for centering and radial stabilization in the chamber.

Abstract: The tire inflation valve comprising a tube defining a passage and having an inside end and an outside end, a valve mechanism positioned in the passage, the valve mechanism comprising a valve shutter and a seat arranged so as to cooperate sealingly with each other, the seat being arranged on the tube in the passage.

Abstract: A safety valve releases a fluid in the event of a fire. To do so it comprises a valve shutter in a body for opening or closing a pipe containing the fluid. A first spring is kept under tension against heat-sensitive means for releasing the valve shutter when the tension is released by the sensitive means. The sensitive means comprise a piston acting on the first spring, a pipe being connected to a chamber delimited in the body by the piston on the opposite side to the first spring. The pipe and the chamber contain a pressurized control fluid so that the piston keeps the first spring under tension. The pipe is made of a material capable of melting at a predetermined temperature so as to release the fluid in the event of a fire around the pipe.

Abstract: The invention relates to a valve comprising a tubular body in which a valve stem moves axially, the head of the stem cooperating with a corresponding seat on the valve body, said stem acting against a coiled spring that is housed in a chamber of circular cross-section and disposed between a bearing zone at a first end of the chamber and the stem in order to return the stem to the seat, said spring comprising: a first end with a large turn of a diameter substantially identical to a diameter of the chamber at the first end; and a second end with a small turn connected to the shank or the head of the stem and a second large turn for centering and radial stabilization in the chamber.

Abstract: A safety valve releases a fluid in the event of a fire. To do so it comprises a valve shutter in a body for opening or closing a pipe containing the fluid. A first spring is kept under tension against heat-sensitive means for releasing the valve shutter ROM when the tension is released by the sensitive means. The sensitive means comprise a piston acting on the first spring, a pipe being connected to a chamber delimited in the body ROOM by the piston on the opposite side to the first spring. The pipe and the chamber contain a pressurized control fluid so that the piston keeps the first spring under tension. The pipe is made of a material capable of melting at a predetermined temperature so as to release the fluid in the event of a fire around the pipe.

Abstract: A device for a leakproof air-conditioning fluid circuit. A body includes a conduit having a foot at its base, coupled to a communication orifice in the periphery of a tube. A welding is made between an interior part of the base of the foot and a corresponding part of a tube having an orifice. An internal semi-cylindrical a portion of the base of the foot features, around the discharging conduit, a part in the shape of a skirt, formed by two straight or curved segments which together define a semi-cylindrical cradle in the interior wall of the tube. An orifice comprising a whistle-shaped notch in the back of the tube, comprises two complementary segments.