In the present invention a mixing valve is provided, comprising a valve seat provided with first and second fluid conduits and a mixed fluid conduit and including a first plug-fit portion and a first mounting portion, and a valve core defining first and second stop surfaces. The valve core comprises a valve housing provided with a second plug-fit portion configured to be mated with the first plug-fit portion, a valve shaft disposed within the valve housing and provided with a valve plate comprising a first regulating aperture and a second regulating aperture, a stop member mounted on the valve shaft, the valve core defining an initial position in which the stop member engages with the first stop surface and a final position in which the stop member engages with the second stop surface, and a valve module. The mixing valve further comprises a pressing cover provided with a second mounting portion to be detachably mounted to the first mounting portion, wherein the valve core is tightly pressed between the pressing cover and the valve seat. In the present invention a valve core and a mixing valve assembly comprising such valve core are also provided.

Provided is a three-way valve for flow rate control capable of suppressing an increase in driving torque for a valve body, which is caused due to contact between the valve body and a valve port forming member. The three-way valve for flow rate control includes: a valve main body (6) including a valve seat (8), the valve seat (8) having a columnar space and having a first valve port (9), which allows outflow of a fluid and has a rectangular cross section, and a second valve port (18), which allows outflow of a fluid and has a rectangular cross section; first and second valve port forming members (70) (80), which are fitted to the valve main body (6) and form the first valve port (9) and the second valve port (18), respectively; a valve body (34) being provided in a freely rotatable manner in the valve seat (8) of the valve main body (6) so as to simultaneously switch the first valve port (9) from a closed state to an opened state and switch the second valve port (18) from an opened state to a closed state, the valve body (34) having a cylindrical shape and having an opening; a pressure applying portion (94) (96) configured to apply pressures of the fluid leaking through a gap between the valve body (34) and the valve seat (8) to the first and second valve port forming members (70) (80) so as to suppress shift of a position of the valve body (34) when the valve body (34) opens and closes the first valve port (9) and the second valve port (18); and drive means (3) for driving the valve body (34) to rotate.

A faucet includes a housing defining hot and cold inlets and an outlet and hot and cold fluid conduits in communication with the hot and cold inlets. A mixer within the housing receives fluids from the fluid conduits and outputs one of the fluids or a mixture thereof. The mixer includes a valve and an actuator configured to move the valve to different positions establishing various ratios of fluids output by the mixer. A temperature actuated flow reducing device within the housing downstream of the mixer restricts a flow of fluid to the outlet when a temperature of the fluid exceeds a predetermined temperature. A first pressure compensating flow regulator upstream of the mixer controls a flow of fluid from the hot fluid conduit to the mixer while a second pressure compensating flow regulator downstream of the mixer controls a flow of fluid through the outlet.

A synchronous switch valve core with a voltage stabilizing function, comprising: a valve core housing (1), a valve core base (2), a flow regulating module, and a balancing hydraulic module. The flow regulating module is capable of cutting off a cold/hot water path before water enters a pressure balancing module, thus preventing high-temperature water from immersing the valve core, preventing the building of lime scale, protecting the valve core, and extending the service life; moreover, water flow can enter the pressure balancing module only after flowing through the flow regulating module, thus preventing the channeling of hot and cold, and obviating the need to install a check valve at a water intake elbow. By means of an optimized design with respect to the parts of the synchronous switch valve core, the synchronous valve core is transformed from a switch capable only of regulating flow into a switch not only capable of regulating flow but also capable of synchronized switching, and also capable of balancing the pressures within two channels, thus transforming a product equipped with the vale core from a complex channel into a simple channel, and obviating the need for separately providing a balancing module part; a valve body is structurally simple, has a shortened water path, and is inexpensive.

A mixing cartridge for a sanitary faucet, comprising: a cartridge housing having a first longitudinal axis, a first cold-water inlet for cold water, and at least one first warm-water inlet for warm water; a mount disposed in the cartridge housing and having a second longitudinal axis, a second cold-water inlet and a second warm-water inlet; a pressure compensation element having a third longitudinal axis, a third cold-water inlet and a third warm-water inlet, wherein the third cold-water inlet opens into a cold-water chamber and the third warm-water inlet opens into a warm-water chamber, and wherein the pressure compensation element is movably disposed in the mount for at least partially equalizing a cold-water pressure of the cold water in the cold-water chamber and a warm-water pressure of the warm water in the warm-water chamber in parallel to the first longitudinal axis of the cartridge housing.

A water control valve may comprise a valve shell, a sliding block, an operating valve piece, a fixing valve piece, a valve base and a check valve. The sliding block, the operating valve piece and the fixing valve piece are stacked sequentially and positioned inside the valve shell. The sliding block has a valve rod which is formed at an upper portion thereof and sticking out of the valve shell, and a bottom portion of the sliding block is engaged with the operating valve piece such that, through operating the valve rod, the sliding block is configured to drive and have movements with the operating valve piece concurrently to perform different aligning patterns between the operating valve piece and the fixing valve piece, thereby enabling the water control valve to control on/off operation of a faucet, the amount of water flow and the mixing ratio of hot/cold water.

A fluid control valve for mixing hot and cold water has an inlet for cold water, an inlet for hot water, and at least one outlet for temperature controlled water. The valve further includes a temperature control device for mixing hot and cold water to provide a source of temperature controlled water that includes a cartridge having inlet ports in communication with the inlets for hot and cold water and an outlet port in communication with the at least one outlet for temperature controlled water. The valve further includes an inner sleeve that defines with the cartridge a first passageway, and an outer sleeve that defines with the inner sleeve and cartridge a second passageway. The first and second passageways are configured to deliver hot and cold water to the inlet ports of the cartridge.

The concepts relate to reducing energy loss associated with hot water systems. One example is manifest as a system with an automatic hot water recovery apparatus and selective hot water isolation devices. In one example a selective hot water isolation device is configured to be connected in fluid flowing relation with a first water line and a second water line and the selective hot water isolation device is configured to control water cross-over from the second water line into the first water line based upon water flow through the first water line.

A valve core connection structure of a valve assembly comprising: a body, two stop valve sets, two limitation structures, and two locking sleeves. The body includes a holder, a cold-water inflow connector, a hot-water inflow connector, a first outflow connector, a second outflow connector, a cold-water inflow seat, and a hot-water inflow seat. Each stop valve set includes a valve core, a limiting loop, a first fixing structure, and a second fixing structure. Each limitation structure is defined between a peripheral fence of each second accommodation cavity and the limiting loop so that the limiting loop is retained on the peripheral fence of each second accommodation cavity, thus limiting rotation of the limiting loop. Each locking sleeve is screwed on the cold-water inflow seat and the hot-water inflow seat so that the limiting loop and the valve core are limited in each second accommodation cavity.

A faucet may comprise a main body, a ceramic control valve, a locating sleeve, a driving block, a handle, an adaptor, and a spout. The handle of the faucet in the present invention is positioned at a front side of the faucet, which is convenient for a user to operate the faucet and saves water during the process of operating the faucet.