A water path control valve structure for flushing the toilet lid, which is divided into upper and lower valve parts, including a valve body, a linkage valve core and a sealing component. The sealing component is installed on the linkage valve core, and the linkage valve core is arranged in the hollow valve body and one end of the linkage valve core extends out of the valve body. The linkage valve core includes an upper valve core and a lower valve core arranged coaxially, and one end of the upper valve core extends out of the valve body. The upper and lower valve cores are respectively installed with the sealing member.

A circulating hot water system has a hot water flow circuit defined by pipework leading out from and back to an in-line heater, and including a pump to drive circulation of the hot water. Each of multiple user points has an outflow branch conduit and a return flow branch conduit with a common wall for heat exchange, as does the main flow circuit: the outflow conduit surrounds the return conduit. Water is fed into the system from a pressurized cold water supply main through a check valve. Sensors are used to monitor water temperatures and flow conditions around the system. A programmed control processor can control heating and pumping rates in various regimes, e.g. to maintain system temperature above a predetermined threshold. An isolation valve adapted for concentric double pipes is also described.

An aspect includes a globe butterfly valve that includes a valve inlet, a valve outlet, a globe housing with a spherical body between the valve inlet and the valve outlet, and a globe butterfly valve disc operably disposed within the globe housing. The globe housing has a larger interior diameter than an inlet diameter of the valve inlet and an outlet diameter of the valve outlet. The globe butterfly valve disc is configured to block a flow path between the valve inlet and the valve outlet responsive to an outer edge of the globe butterfly valve disc being positioned proximate to an interior surface of the globe housing between the valve inlet and the valve outlet.

A system, method, and computer readable medium are provided that monitors at least one of an input and output stream for at least one of a presence of a material of interest and a concentration of the material of interest; when the material of interest is present and/or has at least a threshold concentration, directs the at least one of an input and output stream to a waste location or path to discard the material of interest; and when the material of interest is either not present or does not have at least a threshold concentration, directs the at least one of an input and output stream to a byproduct location or path to recover the material of interest.

A system, method, and computer readable medium are provided that monitors at least one of an input and output stream for at least one of a presence of a material of interest and a concentration of the material of interest; when the material of interest is present and/or has at least a threshold concentration, directs the at least one of an input and output stream to a waste location or path to discard the material of interest; and when the material of interest is either not present or does not have at least a threshold concentration, directs the at least one of an input and output stream to a byproduct location or path to recover the material of interest.

A manifold having a first side, a second side, a first channel extending from the first side to the second side, and a second channel extending from the first side to the second side is disclosed. The first channel and the second channel each define a linear longitudinal axis. In one embodiment, the first channel longitudinal axis and the second channel longitudinal axis are oblique to the first side and the second side of the manifold. The manifold of the present disclosure provides channels that can be easily cleaned and allow for an increased flow performance.

A device for mixing and metering of at least two gases, comprising two bodies that can be displaced relative to each other, wherein margins of the bodies are in contact with one another and between these margins at least two rectangular openings for one gas each can be formed, wherein a displacement of the bodies relative to each other automatically causes an increase of one opening and a decrease of the other opening, wherein the resulting total cross-section of the openings remains constantly the same here. Moreover, the device comprises a control element which is arranged adjacent to the two bodies and in contact therewith, wherein the control element can be translationally displaced in a continuous manner between a closed position and an open position in order to close or to open the openings.

A manifold having a first side, a second side, a first channel extending from the first side to the second side, and a second channel extending from the first side to the second side is disclosed. The first channel and the second channel each define a linear longitudinal axis. In one embodiment, the first channel longitudinal axis and the second channel longitudinal axis are oblique to the first side and the second side of the manifold. The manifold of the present disclosure provides channels that can be easily cleaned and allow for an increased flow performance.

An aspect includes a globe butterfly valve that includes a valve inlet, a valve outlet, a globe housing with a spherical body between the valve inlet and the valve outlet, and a globe butterfly valve disc operably disposed within the globe housing. The globe housing has a larger interior diameter than an inlet diameter of the valve inlet and an outlet diameter of the valve outlet. The globe butterfly valve disc is configured to block a flow path between the valve inlet and the valve outlet responsive to an outer edge of the globe butterfly valve disc being positioned proximate to an interior surface of the globe housing between the valve inlet and the valve outlet.

The present disclosure relates to the field of fluid switches, and more particularly to an extractable faucet, comprising a faucet housing configured as a tubular member with a cavity; a faucet body including an extractable head and an extractable conduit, an water inlet end of the extractable head is connected to the extractable conduit; a first support received in the cavity and located in a water outlet end of the faucet housing, the extractable head is freely received in the first support and a purified water pipe is embedded detachably into the first support; a mounting seat configured to function as a water distributor and is detachably engaged with the faucet housing; a valve cartridge received in the mounting seat and is used for controlling the shut off of the extractable conduit and the purified water pipe, and separating the flow path of the tap-water and that of the purified water. The extractable faucet makes the purified water line incorporate into the extractable faucet and is controlled by one valve cartridge for the switching on and the switching off for the purified water and tap-water, satisfying the use convenience requirement of user for direct drinking water, while reducing the occupied area in the kitchen and improving user experience.