An aseptic coupling assembly, includes a first connector and a second connector. The first connector includes a first housing, a first valve member, and a first spring that biases the first valve member towards the second end of the first housing to a first closed position. The second connector includes a second housing, a second valve member, and a second spring that biases the second valve member towards the second end of the second housing to a second closed position. The first valve member is slidable away from the first closed position within the first housing to compress the first spring and the second valve member is slidable away from the second closed position within the second housing to compress the second spring. The coupling assembly further includes a seal that prevents fluid from contacting the first spring and the second spring.

A quick connector includes a male base and a female base, wherein the male base has a first tube body, an annular clamping groove arranged outside the first tube body, a first flow channel axially penetrating through the first tube body, a plug body slidably arranged in the first flow channel, and an elastic member for pushing the plug body to close the first flow channel. The female base includes a second tube body, a second flow channel which axially penetrates through the second tube body and into which the first tube body is inserted, an annular fastener provided in the second flow channel, and a push rod fixed on the second flow channel and oriented towards the plug body.

A quick connector includes a male base and a female base, wherein the male base has a first tube body, an annular clamping groove arranged outside the first tube body, a first flow channel axially penetrating through the first tube body, a plug body slidably arranged in the first flow channel, and an elastic member for pushing the plug body to close the first flow channel. The female base includes a second tube body, a second flow channel which axially penetrates through the second tube body and into which the first tube body is inserted, an annular fastener provided in the second flow channel, and a push rod fixed on the second flow channel and oriented towards the plug body.

A coupling member for a blind mate fluid coupling includes a housing and a fluid connector fixed in position relative to the housing for connecting to a fluid conduit of the system. A valve body extends through the housing and is movable relative to the housing. The valve body includes an internal fluid passage that is fluidly connected to the connector, and a valve member opens or closes the internal fluid passage. A carrier is at least partially disposed in the housing and is radially movable relative to the housing. The carrier is configured to cooperate with the valve body to facilitate alignment of the valve body when coupling to another coupling member. The carrier may form a portion of the fluid passage between the connector and valve body, and includes a sealing arrangement that permits radial and/or angular misalignment compensation of the design. Varying diameters of the insertion part or receiving part of the coupling member may be provided for further enhancing misalignment compensation of the design.

A coupling member for a blind mate fluid coupling includes a housing and a fluid connector fixed in position relative to the housing for connecting to a fluid conduit of the system. A valve body extends through the housing and is movable relative to the housing. The valve body includes an internal fluid passage that is fluidly connected to the connector, and a valve member opens or closes the internal fluid passage. A carrier is at least partially disposed in the housing and is radially movable relative to the housing. The carrier is configured to cooperate with the valve body to facilitate alignment of the valve body when coupling to another coupling member. The carrier may form a portion of the fluid passage between the connector and valve body, and includes a sealing arrangement that permits radial and/or angular misalignment compensation of the design. Varying diameters of the insertion part or receiving part of the coupling member may be provided for further enhancing misalignment compensation of the design.

Some fluid coupling devices described herein are configured for use in fluid systems for purposes of providing a single-use, aseptic disconnection functionality that substantially prevents fluid spillage when being disconnected. In some embodiments, the coupling portions cannot be functionally reconnected to each other after being disconnected from each other.

Some fluid coupling devices described herein are configured for use in fluid systems for purposes of providing a single-use, aseptic disconnection functionality that substantially prevents fluid spillage when being disconnected. In some embodiments, the coupling portions cannot be functionally reconnected to each other after being disconnected from each other.

Methods and apparatus are disclosed for a low-emission nozzle and receptacle coupling for cryogenic fluid. An example nozzle includes a body defining a chamber through which cryogenic fluid is to flow. The body includes an outer shell that includes an outer shell surface. The nozzle includes a locking assembly configured to securely couple the nozzle to a receptacle. The locking assembly includes an inner sleeve fixedly coupled to the outer shell surface and an outer sleeve extending over and rotatably coupled to the inner sleeve. One or more locking teeth are fixedly coupled to the outer sleeve and configured to be slidably received by respective one or more coupling slots of the receptacle. The one or more locking teeth are configured to rotatably slide within the respective one or more coupling slots to couple the nozzle to the receptacle as the outer sleeve rotates relative to the inner sleeve.

A traveling service tool that is configured to removably attach to a fluid access port of a refrigerant system. The fluid access port can be the fluid access port described herein or an existing fluid access port. When used with the fluid access port described herein, the traveling service tool is configured to hold a removable core during processing, and ultimately install the core into the fluid access port at a suitable stage in the processing operations. In an embodiment, the traveling service tool remains attached to and travels with the refrigerant system for the refrigerant system to be processed at two or more separate fluid processing stations.

Some fluid coupling devices described herein are configured for use in fluid systems for purposes of providing a repeatable, aseptic fluid coupling system. Such repeatable, aseptic fluid coupling systems are configured to facilitate multiple connection and disconnection cycles while repeatably establishing a sterile fluid pathway through the coupling system. The repeatable, aseptic fluid coupling systems can repeatably establish a sterile fluid pathway through the coupling system even though the coupling system may be used in a non-sterile environment.