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 multi-way valve includes an upper valve body, a lower valve body and a rotary valve core. The upper valve body and the lower valve body are provided respectively with an upper mounting hole and a lower mounting hole. The rotary valve core is provided passing through the upper mounting hole and the lower mounting hole, respectively. The rotary valve core is formed with a first stepped surface facing toward the upper valve body, and an adjusting nut, which is located below the rotary valve core, is provided in the lower mounting hole. The rotary valve core is moved up and down axially by adjusting the adjusting nut such that an axial clearance between the first stepped surface and the upper valve body is adjusted, so the rotary valve core may flexibly rotate at different temperatures to prevent the multi-way valve from being stuck.

A freeze protection system is provided that includes a first valve configured to be coupled with an inlet of a water heater, such as a tankless water heater; a second valve configured to be coupled with an outlet of the water heater; and a valve actuator configured to automatically actuate the first valve and the second valve to permit water to drain from the water heater when (1) electric power is lost to the water heater, and (2) a temperature of a fluid in or around the water heater is less than or equal to a predetermined low temperature threshold.

A multi-port valve assembly, which includes a housing, a plurality of ports formed as part of the housing, a rotor disposed in the housing, and is selectively in fluid communication with the plurality of ports. Also included is a plurality of channels integrally formed as part of the rotor, a central plane extending through the rotor, a first level on one side of the central plane where a portion of the channels is located on the first level, and a second level on the opposite side of the central plane in relation to the first level, where a portion of the channels are located on the second level. At least two flow paths are formed by the orientation of the rotor relative to the housing and the ports, and the rotor is placed in one of a plurality of configurations to achieve the at least two flow paths.

A support surface assembly includes a covering defining an interior. Bladders are disposed within the interior. The bladders are operable between a deployed state and a non-deployed state. A manifold assembly is disposed within the interior of the covering. The manifold assembly includes a manifold core defining an inlet and multiple outlets. An engagement surface of the manifold core defines an inlet-connecting aperture in fluid communication with the inlet and multiple outlet-connecting apertures each in fluid communication with one of the multiple outlets. A connector includes an inner side that abuts the engagement surface of the manifold core. The inner side defines a recessed region. The connector is configured to be rotated by a motor to fluidly couple the inlet-connecting aperture with at least one of the outlet-connecting apertures to adjust the respective bladders between the deployed state and the non-deployed state.

A faucet with integrated manual and automatic flow control, which includes a faucet body, a valve, a handle, a cold water inlet pipe, a hot water inlet pipe, a water outlet pipe, a sensing unit and a control device. The valve and the control device are both arranged inside the faucet body. The handle is arranged on one side of the faucet body and is connected with one end of the valve, the other end of the valve is connected with the control device. The sensing unit is arranged on the faucet body and is electrically connected with the control device. The cold water inlet pipe and the hot water inlet pipe are both connected to one end of the water outlet pipe through the valve.

A rotary valve includes a stator member with a planar stator face, the stator member having a plurality of stator channels for conducting a fluid; and a rotor member with a planar rotor face facing and in contact with the stator face, the rotor member having a rotor channel; wherein the rotor member is rotatable with respect to the stator member about a rotation axis, such that in a conducting position, the rotor channel interconnects two of the stator channels and the two stator channels are in fluid communication; wherein at least one of the stator channels has a transverse channel section opening into the stator face and running transversely with respect to the rotation axis; wherein the rotor channel has a bottom, which at an intersection end of the rotor channel is inclined with respect to the rotation axis, such that the rotor channel elongates an inner surface of the stator channel, when the rotor member is in the conducting position.

Disclosed is a four-way reversing valve, including a valve body, a motor transmission structure, and a reversing valve disc; the valve body includes a valve seat, an insulation sleeve welded to upper end surface of the valve seat, a D pipe, an S pipe, a C pipe, and an E pipe connected to lower end surface of the valve seat; the motor transmission structure includes motor worm gear and shaft transmission assembly and a planetary gearbox kit; the motor worm gear and shaft transmission assembly is sleeved onto upper external wall of the insulation sleeve through shaft hole of an external drive sprocket, and a non-through blind-hole is formed in a valve seat center; a central shaft is embedded into the blind-hole, and the central shaft connects the reversing valve disc and the planetary gearbox kit; the reversing valve disc and the planetary gearbox kit are inside the insulation sleeve.

A diverter valve includes a diverter valve assembly, a diverter valve transmission assembly, a drive motor and a control device used to control the drive motor. Controlled by the control device, the drive motor drives the diverter valve transmission assembly to perform a transmission action, so as to drive the diverter valve assembly to perform switching actions. The diverter valve transmission assembly is an intermittent gear transmission assembly. Driven by the drive motor, each time the intermittent gear transmission assembly performs the transmission action at least once, the control device controls the drive motor to stop driving. In this way, during the action process, not only the transmission is stable and reliable, the noise is low, but it is also wear-resistant enough under high-frequency use, which can meet the requirements of long-term working consumption of the beverage machine.

A rotary valve is used to control fluid flow within a fluid delivery system. The valve may include a valve body having multiple ports that are connected to the system, and a lid that closes an open end of the valve body. A diverter disposed in the valve body is driven to rotate via a shaft. The shaft protrudes from the valve body through a sleeve provided in the lid. The sleeve includes an internal shoulder. A seal retainer engages the sleeve and retains a shaft seal in a desired position between the shaft and the sleeve. The seal retainer includes an endplate having a central opening that receives the shaft, and a collar that protrudes from the endplate inner surface so as to reside between the sleeve and the shaft. An end face of the collar faces the shoulder with the seal disposed between the end face and shoulder.