Abstract: A method for degassing a fluid includes providing a degassing system having a degassing module and a fluid pump apparatus having a fluid reservoir, wherein the fluid pump apparatus is operated in a discontinuous mode involving one or more discrete pumping cycles having a first cycle time. The fluid pump apparatus is calibrated to deliver a predetermined volume of the fluid from the fluid reservoir during each of the pumping cycles, and the degassing module is adapted to operably move gas from the fluid to an extent sufficient to render the fluid volume to a desired degassed condition within a period of time that is not greater than the first cycle time.

Abstract: An elongated flow-through degassing apparatus includes an elongated gas and liquid impermeable outer member and a gas-permeable, liquid-impermeable inner barrier extending within the outer member and at least partially along a first chamber defined within the outer member. The apparatus also includes inlet and outlet connection structures operably coupled to respective portions of the outer member and a second chamber defined by the inner barrier to further enable a sealed engagement between the outer member and the inner barrier, and to provide for connection devices to operably couple the degassing apparatus of the present invention to respective spaced apart components. The degassing apparatus may be sufficiently flexible so as to be readily manipulatable into desired configurations.

Abstract: A shear valve assembly that includes a stator element having a body, a stator face and at least a first stator passage and a second stator passage extending through the stator body. The first passage and the second passage terminate at the stator face at a respective first stator port and a respective second stator port. The valve further includes a rotor element that defines a rotor face configured for fluid-tight contact against the stator face at a rotor/stator interface. The rotor face defines a first rotor port and a spaced second rotor port, and a rotor body thereof defines a first subterranean passage extending fully beneath the plane of the rotor face. One end of the subterranean passage terminates at the first rotor port at the rotor face surface, while an opposite end thereof terminates at the second rotor port at the rotor face. The rotor face and the stator face is rotatable about a rotation axis relative one another between a first position and a second position.

Abstract: An apparatus for removing gas bubbles from a fluid includes a fluid inlet and a separation chamber that is in fluid communication with the fluid inlet. The separation chamber has first and second end portions, with the first end portion being operably oriented gravitationally above the second end portion. The apparatus further includes a first gas-permeable, liquid-impermeable membrane disposed in the separation chamber and extending substantially along a first axis defined as extending between the first and second end portions. A permeate side of the membrane is exposed to an environment having a second partial pressure of a target gas, which second partial pressure is lower than a first partial pressure of the gas in the fluid.

Abstract: A pump for use in operably evacuating a chamber in a vacuum degassing apparatus includes one or more pumping cavities that are in fluid communication with the chamber, and a continuous vent channel that has an outlet disposed in fluid communication with a respective one of the one or more pumping cavities. The vent channel is configured to provide dilution gas flow into the pumping cavity of the pump at a rate sufficient to prevent solvent condensation in the pumping cavity during operation of the pump in liquid degassing applications.

Abstract: A fluid analysis apparatus for containing and analyzing a fluid sample includes a cell body assembly having a plurality of distinct portions in fluid communication with one another and with the distinct portions being hydraulically sealed to one another through the use of one or more resilient gaskets interposed between adjacent ones of the plurality of distinct portions of the cell body assembly. The one or more resilient gaskets enable both hydraulic sealing of adjacent distinct portions, as well as fluid coupling and routing through the fluid analysis apparatus.

Abstract: A multi-position micro-fluidic valve system that includes an actuator assembly with a housing and a drive shaft rotatably disposed in the housing for rotational displacement about a drive axis thereof. One end of the drive shaft is configured to couple to a drive motor for selective rotation of the drive shaft about the drive axis. One of at least two different multi-position fluid valve devices can be removably mated to the actuator assembly. Each valve device is configured for rotational movement of a corresponding valve shaft about a valve rotational axis thereof between a plurality of discrete fluid distribution positions. A coupling device selectively and removably mounts the valve shaft of the respective valve device to the drive shaft of the actuator assembly. This enables selective positioning of the multi-position fluid valve device at a discrete one of the plurality for discrete distribution positions.

Abstract: A fluid fitting assembly for a fluid-tight coupling of a plurality of tube members to a connector member as a unit A RAM device having proximal surface and an opposite distal surface facing toward the connector member, and a plurality of alignment passages each defined by an alignment passage extending from the proximal face to the distal face for sliding receipt of a respective tube member therethrough. A plurality of ferrule devices is also included each having a proximal tube engaging portion, an opposite distal sealing portion and a tube receiving passage extending from the tube engaging portion to the sealing portion and formed for receipt of a respective tube member therethrough.

Abstract: A multi-position micro-fluidic valve system that includes an actuator assembly with a housing and a drive shaft rotatably disposed in the housing for rotational displacement about a drive axis thereof. One end of the drive shaft is configured to couple to a drive motor for selective rotation of the drive shaft about the drive axis. One of at least two different multi-position fluid valve devices can be removably mated to the actuator assembly. Each valve device is configured for rotational movement of a corresponding valve shaft about a valve rotational axis thereof between a plurality of discrete fluid distribution positions. A coupling device selectively and removably mounts the valve shaft of the respective valve device to the drive shaft of the actuator assembly. This enables selective positioning of the multi-position fluid valve device at a discrete one of the plurality for discrete distribution positions.

Abstract: A liquid dispensing system is provided for automated dispensing of a plurality of liquid reagents into a recreational body of water. The liquid dispensing system includes a cartridge apparatus defining a cavity, and a cartridge front wall. A plurality of liquid reagent containers are included, each containing a respective liquid reagent and each being disposed in the cavity in a manner permitting access to each respective liquid reagent through the front wall. A docking assembly is provided having a dock manifold device, and is releasably coupled to the cartridge apparatus between a first condition and a second condition. In a first condition, the cartridge apparatus can be removably coupled to the docking assembly, while in the second condition, the cartridge apparatus is lockably mounted to the docking assembly in a manner permitting fluid communication through the cartridge front wall from the respective reagent container to respective fluid passages of the manifold device.