A coupling part, particularly a coupling cuff, for a quick-release coupling for high-pressure hydraulic lines, has a coupling housing having a through-flow channel and a valve device disposed within the through-flow channel, this device having a tappet-like closing valve for closing off the through-flow channel in the uncoupled state of the coupling part. The coupling housing has a conical valve seat surface, and the closing valve has a longitudinal valve axis as well as a valve head having a conical surface and a valve sealing ring for sealing contact with the valve seat surface. The valve sealing ring has a circular-cylindrical ring circumference surface that projects beyond the conical surface in the radial direction and has a valve seal diameter D.sub.VD. The flow-through channel has a ring-shaped cross-sectional widened region having a maximal expansion diameter D.sub.EW, wherein the cross-sectional expansion region lies radially opposite the ring circumference surface in the maximally open position of the closing valve, with regard to the longitudinal valve axis.

A coupling part, particularly a coupling cuff, for a quick-release coupling for high-pressure hydraulic lines, has a coupling housing having a through-flow channel and a valve device disposed within the through-flow channel, this device having a tappet-like closing valve for closing off the through-flow channel in the uncoupled state of the coupling part. The coupling housing has a conical valve seat surface, and the closing valve has a longitudinal valve axis as well as a valve head having a conical surface and a valve sealing ring for sealing contact with the valve seat surface. The valve sealing ring has a circular-cylindrical ring circumference surface that projects beyond the conical surface in the radial direction and has a valve seal diameter D.sub.VD. The flow-through channel has a ring-shaped cross-sectional widened region having a maximal expansion diameter D.sub.EW, wherein the cross-sectional expansion region lies radially opposite the ring circumference surface in the maximally open position of the closing valve, with regard to the longitudinal valve axis.

A coupling element for connecting a first conduit with a second conduit, includes a tubular body, a valve element arranged in the tubular body for displacement between a sealing position in which the valve element interacts with a valve seat thereby closing the coupling element, and a release position in which the valve element releases a flow connection through the coupling element; and at least one actuating arm engaging on the valve element, said at least one actuating arm traversing a wall of the tubular body in a radial direction and protruding radially over the tubular body so that when a counter coupling element coupled with the second conduit or the second conduit is pushed onto the coupling element the counter coupling element or the second conduit exerts a force on the actuating arm so that the valve element is urged from the sealing position in a direction of the release position.

A coupling element for connecting a first conduit with a second conduit, includes a tubular body, a valve element arranged in the tubular body for displacement between a sealing position in which the valve element interacts with a valve seat thereby closing the coupling element, and a release position in which the valve element releases a flow connection through the coupling element; and at least one actuating arm engaging on the valve element, said at least one actuating arm traversing a wall of the tubular body in a radial direction and protruding radially over the tubular body so that when a counter coupling element coupled with the second conduit or the second conduit is pushed onto the coupling element the counter coupling element or the second conduit exerts a force on the actuating arm so that the valve element is urged from the sealing position in a direction of the release position.

The present disclosure relates to a canister connection apparatus designed to efficiently and easily connect a pressurized canister to an external system.

The present disclosure relates to a canister connection apparatus designed to efficiently and easily connect a pressurized canister to an external system.

A container capable of connecting a container and a container holder to open and close a valve in a simple structure is required. A container connection system comprises a fluid container wherein a fluid flows in an inner portion of the fluid container, the fluid container including a container connection having an inner conduit through which the fluid flows and in communication with the inner portion of the fluid container; and an outer conduit through which the fluid flows and in communication with the inner portion of the fluid container, the outer conduit formed outside the inner conduit and defined by an outer surface of the inner conduit and an inner surface of the outer conduit; and a container holder for receiving the container connection to connect with the fluid container, the container holder having a conduit capable of connecting with the inner conduit of the fluid container and another conduit capable of connecting with the outer conduit of the fluid container when the container holder receives the container connection.

A container capable of connecting a container and a container holder to open and close a valve in a simple structure is required. A container connection system comprises a fluid container wherein a fluid flows in an inner portion of the fluid container, the fluid container including a container connection having an inner conduit through which the fluid flows and in communication with the inner portion of the fluid container; and an outer conduit through which the fluid flows and in communication with the inner portion of the fluid container, the outer conduit formed outside the inner conduit and defined by an outer surface of the inner conduit and an inner surface of the outer conduit; and a container holder for receiving the container connection to connect with the fluid container, the container holder having a conduit capable of connecting with the inner conduit of the fluid container and another conduit capable of connecting with the outer conduit of the fluid container when the container holder receives the container connection.

An apparatus for transferring a fluid from and/or to a system, e.g., an air conditioning system, includes a main compartment having at least one pumping device for pumping the fluid from/to the system, an interface module having at least one gauge which is configured for displaying the pressure of the fluid, and a fluid connection fluidly connecting the gauge to the main compartment. The fluid connection is formed in a double conduit design in order to prevent any leakage of the fluid from the fluid connection.

Disclosed herein is a bladder that may be configured as a supply bladder and as a discharge bladder in a fluid coupler. The bladder may comprise at least one overtube having a lumen in which is positioned a catheter, which may include a fluid passage portion and an inflation portion, wherein the overtube has a first securing edge and a second securing edge, at least one gland nut to be secured to the first securing edge of the overtube, the gland unit may be tightened internally to the first securing edge of the overtube, a cord grip located with the gland unit when the gland nut is secured to the first secured edge, at least one sealing coupler ring to be secured to the second securing edge of the overtube, at least one bladder insert for creating a seal between the overtube and the sealing coupler ring within the catheter, and a plurality of O-rings to be secured inside the sealing coupler ring with a screw unit.