A rotary disc 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. In addition, the valve may include a diverter and seal assembly that are disposed in the valve body. The seal assembly includes first and second seal subassemblies. The first subassembly has first through openings that are axially aligned with the diverter through openings. The second subassembly is axially stacked with the first subassembly and includes second through openings that are axially aligned with valve body subchambers associated with the ports. A first static seal is disposed between the diverter and the first subassembly, a second static seal is disposed between the valve body and the second subassembly, and a dynamic seal is disposed between the first subassembly and the second subassembly.

A bidet attachment system includes an attachment structure configured for removable attachment to a toilet bowl, a spray structure for spraying water, a rotatable dial located on a top side of the attachment structure, and a valve having an inlet section, a valve section downstream of the inlet section, the valve section regulating passage of water from the inlet section, an outlet section downstream of the valve section, wherein the outlet section includes a first outlet that allows for egress of water and a second outlet that allows for egress of water, wherein the valve section includes an adjustable control disc being mechanically coupled with the dial such that rotation of the dial rotates the control disc, the control disc having a first and a second channel bore, and a stationary disc downstream from the stationary disc having a first and a second channel bore.

A bidet attachment system includes an attachment structure configured for removable attachment to a toilet bowl, a spray structure for spraying water, a rotatable dial located on a top side of the attachment structure, and a valve having an inlet section, a valve section downstream of the inlet section, the valve section regulating passage of water from the inlet section, an outlet section downstream of the valve section, wherein the outlet section includes a first outlet that allows for egress of water and a second outlet that allows for egress of water, wherein the valve section includes an adjustable control disc being mechanically coupled with the dial such that rotation of the dial rotates the control disc, the control disc having a first and a second channel bore, and a stationary disc downstream from the stationary disc having a first and a second channel bore.

A rotary disc valve is used in a fluid delivery system to control flow of fluid between multiple ports. The valve may include a valve body having multiple ports that are connected to the system. In addition, the valve may include a diverter and seal assembly that are disposed in the valve body. The diverter is configured to rotate about a rotational axis and to control fluid flow through the valve body in such a way that fluid enters the diverter in a first direction that is parallel to the rotational axis, fluid exits the diverter in a second direction that is parallel to the rotational axis, the second direction being opposite the first direction, and between entering and exiting, fluid flows over a portion of the diverter outer surface.

A rotary disc valve is used in a fluid delivery system to control flow of fluid between multiple ports. The valve may include a valve body having multiple ports that are connected to the system. In addition, the valve may include a diverter and seal assembly that are disposed in the valve body. The diverter is configured to rotate about a rotational axis and to control fluid flow through the valve body in such a way that fluid enters the diverter in a first direction that is parallel to the rotational axis, fluid exits the diverter in a second direction that is parallel to the rotational axis, the second direction being opposite the first direction, and between entering and exiting, fluid flows over a portion of the diverter outer surface.

A vacuum assembly includes a vacuum portion having a vacuum source with an inlet and an outlet and a tank portion. A three-way inlet valve fluidly connects the inlet to the vacuum source with the tank portion when in a first position and fluidly connects the inlet to the vacuum source with an inlet to a surrounding environment when in a second position. A three-way outlet valve fluidly connects the outlet of the vacuum source with an outlet to the surrounding environment when in a first position and the outlet of the vacuum source with the tank portion when in a second position.

A vacuum assembly includes a vacuum portion having a vacuum source with an inlet and an outlet and a tank portion. A three-way inlet valve fluidly connects the inlet to the vacuum source with the tank portion when in a first position and fluidly connects the inlet to the vacuum source with an inlet to a surrounding environment when in a second position. A three-way outlet valve fluidly connects the outlet of the vacuum source with an outlet to the surrounding environment when in a first position and the outlet of the vacuum source with the tank portion when in a second position.

A rotary valve, comprising a valve housing with a valve chamber, wherein the valve chamber has a chamber wall in which at least two fluid openings are provided, wherein the valve chamber has a receiving opening on the end face side, wherein the valve chamber accommodates a valve core, wherein the valve core is provided with a channel structure which interacts with the fluid openings, wherein the valve core is supported in the valve chamber in a rotationally movable manner, wherein the valve chamber is formed in a conical shape.

A tankless water heater (TWH) isolation valve includes a valve body having a plug valve port, a TWH port, a water distribution system port and a drain port. A plug valve includes at least one plug seal. The plug valve is controlled by a rotatable plug valve handle. The plug valve is disposed through the plug valve port and within the valve body. The rotatable plug valve handle includes a first plug valve handle position and a different rotated second plug valve handle position. In a normal operating mode in the first plug valve handle position, the TWH port is fluidly coupled to both of the drain port and the water system distribution port. In a drain mode, the TWH port is fluidly coupled to the drain port, and the water system distribution port is closed to the TWH port as blocked by the plug seal.

Provided is a connector including a plug and a socket. The socket includes: a socket body in which a second liquid outflow passage and a second liquid inflow passage are formed; a ball lock mechanism that is attached to the socket body and fixes the socket body to a key ring; and a switching mechanism that switches an open state and a closed state of a rotary valve. The switching mechanism includes an opening/closing arm that regulates releasing of the fixation of the socket body to the key ring by the ball lock mechanism in the open state.