A fluid control valve for a faucet includes a body, a stem, a moveable disc, and at least one stationary disc. The stem is rotatably coupled to the body. The moveable disc is coupled to the stem and is configured to rotate with the stem. The at least one stationary disc is coupled to the body below the moveable disc. The fluid control valve is configured to be biased in an axial direction against a retaining element within a valve body by an incoming supply of fluid through the at least one stationary disc, so as to retain the fluid control valve within the valve body along the axial direction.

A faucet assembly includes a housing which includes a first faceplate defining a first and second opening which extend through the first faceplate and spaced apart and a seal member on the first faceplate which surrounds the first and second openings. A cartridge assembly positioned within an opening in the housing which includes a second faceplate, which abuts the seal member and forms a seal between the second faceplate and the seal member. Second faceplate defines third opening which extends through the second faceplate. With rotation of the second faceplate, third opening changes position relative to first faceplate to include the third opening positioned in one of: alignment with a portion of first opening and a portion of second opening, alignment with the first opening or alignment with the second opening.

A fluid flow control system having a fluid inlet configured to be operatively coupled to a fluid source, a fluid outlet in fluid communication with the fluid inlet such that fluid may exit the system therethrough, a proximity sensor for detecting the position of an object within a region adjacent the sensor, and a flow control device configured to regulate fluid flow between the inlet and outlet in response to object detection by the sensor, wherein the flow control device varies the fluid flow proportional to the detected distance of an object from the sensor. A water flow control system for use in a shower environment is also provided, as well as a shower control system, methods for controlling water flow based on sensing of the presence and location of an object, and methods for reducing water consumption.

A portable water path switching device includes a valve body, a water diversion member, and a switching assembly. The valve body is provided with a valve cavity, a water inlet communicating with the valve cavity, and at least two water outlets. The water diversion member is arranged in the valve cavity and at least provided with first water diversion holes and second water diversion holes. The first water diversion holes communicate with the first water outlet, and the second water diversion holes communicate with the second water outlet. The switching assembly is movably connected to the valve body and includes seal balls. When the switching assembly is driven, the seal balls switchably block the first water diversion holes and the second water diversion holes, so that water flow of the water inlet switchably flows to the second water outlet and the first water outlet.

A fluid cross-free switching valve includes a valve body, a first drive assembly and a second drive assembly. The valve body includes a valve head, a valve core seat and a rotor valve core. The valve core seat is rotatable relative to the valve head. The rotor valve core is slidably mounted on the valve core seat. The rotor valve core is fitted with the valve head. The valve head is provided with at least three reversing connectors. The rotor valve core is provided with a groove that is in communication with the reversing connector on a fitting surface of the rotor valve core and the valve head. The first drive assembly is able to drive the valve core seat to rotate, and the second drive assembly is able to drive the rotor valve core to slide.

A valve is provided for use with liquid chromatography where liquid is provided to the chromatographic analysis equipment at more than one pressure, including up to ultra-high pressures. High and higher pressure operation are provided by application of force by an internal spring while avoiding wear of components by permitting higher pressure operation by mechanical engagement of an internal element to cause the internal spring to increase the force applied to the rotor, without the addition of external additional loading in the high pressure operation.

A multiport valve used for a water quality analyzer is provided with: a valve head having a plurality of ports for receiving pipings for connections therebetween, the ports being provided on an outer surface of the valve head, the valve head including a connection surface in which ends of flow paths communicating with the respective ports are arranged in the same plane, the valve head being made of a resin material having corrosion resistance against a chemical used in the water quality analyzer; a rotor having a flat surface provided with a groove for switching a connection state between the ends of the flow paths arranged on the connection surface, the flat surface being arranged so as to face the connection surface; and a drive mechanism configured to rotate the rotor.

A valve arrangement includes a valve module and a base module. The valve module includes a stator and a rotor, which is rotatable relative to the stator such that at least one fluid connection is formable between the stator and the rotor. The base module includes at least a part of a force control mechanism for selectively implementing a force-releasing or force-coupling of the rotor and the stator, whereby the valve module and the base module are selectively coupleable to or decoupleable from each other.

A fluid valve for a sample separation apparatus includes a first valve component and a second valve component, which are adjacent to one another and movable relative to one another. The valve components are configured such that, in at least one switching state, at least one switchable fluid channel is formed between the valve components, and at least one part of a surface of at least one of the first valve component and the second valve component is provided with a coating containing gold and/or platinum.

A valve may be utilized in a high-performance chromatography system for separating components of a sample liquid introduced into a mobile phase. The valve has a first valve element and a second valve element. By a movement of one valve element relative to the other, a first effective surface of the first valve element is brought into connection with a second effective surface of the second valve element, and a flow path may be produced or suppressed. The second valve element has an elastic region to compensate for an axial angle between the first valve element and the second valve element, such that the first effective surface and the second effective surface may be oriented parallel to each other. This may favorably influence a fluidic leak tightness and/or longevity of the valve.