A fluid circulation circuit includes a flow passage switching valve. The flow passage switching valve includes a body and a switcher. The body includes a first inlet, a second inlet, and outlets including a first outlet. The switcher is capable of switching a passage configuration to a state in which a fluid that has flowed in from the first inlet flows out of either one of the outlets and a state in which the fluid that has flowed in from the second inlet flows out of either one of the outlets.

A rotary valve may be operated by automated means and permits aseptic coupling of a source fluid conduit to any of a few or many possible outlet conduits. The valve assembly may be provided with numerous connectors for output coupling but it is not necessary to connect tubing to all of them.

Valve controlled cartridge operated by a pushbutton for the mixing of water and/or for directing water coming from an inlet to one or more outlets. The valve is a flow controlled piston valve (10) with a valve piston (17) guided in the interior of the housing (13) for axial displacement, and where no mechanical connection exists between the control valve (30) and the valve piston.

A faucet with two outlets includes a main body, an outlet pipe, a hot water inlet conduit, a cold water inlet conduit, a cold water conduit, a filtered water conduit and a switch member. The outlet pipe has an inner channel and an outer channel. Filtered water flows through the inner channel, running water flows through the outer channel. The switch member laterally formed a peripheral wall of the main body, and having a valve core being mounted inside the main body. The valve core has control filtered water or running water outlet from the outlet pipe. The faucet with two outlets respectively outputs filtered water and running water through two different waterways in the outlet pipe and ensures simple structure, convenient operation and multiple water output modes.

A testing cap for a valve body includes a base configured to releasably attach to the valve body and to cover an opening in the valve body. The opening is configured to receive a valve cartridge and the base covers the opening in place of the valve cartridge. The testing cap includes a structure extending from the base. The structure is configured to be oriented relative to the valve body in a first orientation and a second orientation. The structure allows fluid to enter the valve body through an inlet port in the valve body and exit the valve body through an outlet port in the valve body when the structure is oriented in the first orientation. The structure covers at least one of the inlet port and the outlet port when the structure is oriented in the second orientation, thereby preventing fluid flow through the valve body.

A rotary valve 1 comprising a stator 3 and a rotor 5, wherein the stator comprises a plurality of connection ports (17a-17l) and orifices (19a-19l) and the rotor comprises a plurality of pairs of rotor valve orifices (23a-23h) joined by transfer channels (25a-25d). The rotor is able to be placed in different working positions whereby fluids can be fed to, for example, chromatography columns and/or can be bypassed through or around the valve. The invention also relates to a system comprising two components such as chromatography columns and a rotary valve.

Described herein is a fluid dispensing system, a system for processing waste material and a fluid monitoring system and a method of monitoring the quality of a fluid. One embodiment provides a fluid dispensing system (1) including a fluid dispenser (3) in fluid communication with at least one source of a first fluid. An identification device identifies a user of the system and generates a user identifier. A processor (19) is responsive to the user identifier to access a database (27) to retrieve user data indicative of one or more user preferences and, in response, generate a control signal. One or more electrical sensors (25) are configured to sense a gesture motion from the user and, in response, generate a local input signal. An actuator system (29) is responsive to the control signal and the local input signal to dispense the first fluid from the fluid dispenser with predefined characteristics.

Provided is a valve drive device including a power transmission switching unit capable of reducing noise and suppressing a tilting of a pivot shaft to perform smooth power transmission switching. In the valve drive device including a valve element drive mechanism, the valve element drive mechanism includes a motor, a driving gear, a driven gear, and a power transmission switching unit configured to switch between a power transmission state and a power non-transmission state. The power transmission switching unit includes at least one convex unit formed on the driving gear, and a rotation restriction unit that is pivotably mounted on the driven gear with respect to the driven gear and engageable with the at least one convex unit. The rotation restriction unit includes a pivot shaft, a lever unit, and a foot unit.

The present invention relate to a reactor comprising: (i) a first reagent release mechanism, (ii) a second reagent release mechanism, and (iii) a reaction area fluid pathway, wherein the reaction area fluid pathway comprises a pathway extension valve, wherein adjusting the pathway extension valve varies the length of the reaction area fluid pathway, and wherein the pathway extension valve comprises a single valve.

A multiple channel selector valve includes a stator and a rotor that is rotatable with respect to the stator. The rotor face includes first and second fluid flow paths for transferring fluids to selected sets of passages in the stator. The fluid flow paths in the rotor face are specifically configured to accommodate high fluid flow rate regimes while reducing flow restriction.