The present disclosure relates to the technical field of toilet equipment, particularly to a toilet. The toilet includes a toilet body, a water tank, an air isolation device, and a water pump, wherein the toilet body is provided thereon with a spout directly facing a sewage exit; the water pump is configured to draw water from the water tank, a water outlet of the water pump is in communication with the spout of the toilet body via the air isolation device, and the air isolation device is configured to block reverse flow of sewage from the spout of the toilet body to the water tank.

A backflow preventer that includes a housing having an inlet and an outlet adapted to be mounted in a liquid flow configuration in a liquid supply circuit. An upstream check disc assembly is positioned in the housing downstream of the inlet, and includes an upstream check plate supporting a downstream diaphragm. An upstream check disc is positioned downstream of the diaphragm and integrally formed with an upstream stem mounted in an aperture in a central hub formed in the check plate for movement between an normally open, flow position and a closed position preventing backflow of liquid through the inlet. A downstream check disc assembly is positioned in the housing downstream from the upstream check disc assembly. A vent discharges liquid to atmosphere upstream of the downstream check disc assembly.

A spill-resistant vacuum breaker valve that includes a check assembly positioned in a valve body and is movable between an open position for allowing water to flow into the valve body through the water inlet and out of the valve body through the water outlet, and a closed position for preventing water from flowing out of the valve body through the water outlet. The check assembly cooperates with a float assembly movable by movement of the check assembly between an open position allowing air to enter the valve body through the air inlet and a closed position sealing the valve body against flow of air into the valve body through the air inlet. The float assembly is adapted to pivot sufficiently to level the float and seal against ejection of water from the valve in the event of non-axial movement of the check assembly in the valve body.

A two-part sillcock includes interior and exterior sillcock members selectively coupled to actuate a valve that controls fluid flow to a faucet. The interior sillcock member includes a flanged housing having an inlet, an outlet, and a valve with a stem including a coupling at the outlet end. The coupling is supported within the housing by an adapter adjacent the outlet end. The exterior sillcock member includes a flanged faucet including a handle shaft with a coupling at the inlet end. An adapter adjacent the housing outlet supports the valve stem coupling and guides and receives the faucet handle shaft coupling for engagement of the couplings. When the exterior and interior sillcock flanges are connected, the faucet handle shaft coupling is connected with the valve stem coupling, so that movement of the handle controls operation of the valve. A dual two-part sillcock includes two sillcocks connected by a mixing assembly.

An anti-siphon structure for a tankless pressure flushing toilet, that comprises: a main body, on which is disposed a water passage channel, the main body is connected to a water output end of a water supply pipe; a movable valve core set, disposed in the main body, to open or close water flowing through the water passage channel; a first check valve, connected to a water output end of the main body, a water output end of the first check valve is connected to a pressure water tank of a toilet seat; and a vacuum breaker, disposed at a side of a front end of the movable valve core set, and is connected to the water passage channel. A second check valve is disposed at the water input end of the main body.

A spill-resistant vacuum breaker valve that includes a check assembly positioned in a valve body and is movable between an open position for allowing water to flow into the valve body through the water inlet and out of the valve body through the water outlet, and a closed position for preventing water from flowing out of the valve body through the water outlet. The check assembly cooperates with a float assembly movable by movement of the check assembly between an open position allowing air to enter the valve body through the air inlet and a closed position sealing the valve body against flow of air into the valve body through the air inlet. The float assembly is adapted to pivot sufficiently to level the float and seal against ejection of water from the valve in the event of non-axial movement of the check assembly in the valve body.

The present disclosure provides a microbubble generation container and a water discharging device. The container includes a barrel main body, an excitation member and an elastic member. The barrel main body is provided with a water inlet, a water outlet and a connecting port. The excitation member is movably arranged in the barrel main body, and includes a partition plate and a sealing portion. The partition plate divides an inner space of the barrel main body into a first chamber and a second chamber, and a water passage for communicating the first chamber with the second chamber is arranged on the partition plate. The water passage enables water flowing by to form water droplets and be ejected. The sealing portion opens and closes the connecting port with a motion of the excitation member.

Overflow protection and monitoring devices capable of coupling to a drainage pan and may include: a drainage line; a base, the base including an input port; a dry section; and a wet section, the input port capable of coupling to the drainage pan; a base cover, the base cover removably coupled to the base, the base cover including a base cover output port capable of coupling to the drainage line; a fluid displacement mechanism located in the wet section, the fluid displacement mechanism including a fluid displacement mechanism output port; a fluid detection mechanism located in the wet section; and a base attachment, the base attachment coupled to the fluid displacement mechanism output port and the base cover output port, the base attachment including an air relief port and back-flow preventer; a control unit capable of energizing the fluid displacement mechanism upon receiving a signal from the fluid detection mechanism.

An embodiment of a fluid valve includes a substantially flat face plate, a receptacle, a cavity, and a valve assembly. The receptacle is disposed in the face plate and has at least one protrusion each configured to engage a respective at least one groove of a valve-opening-and-fluid-dispensing device. The cavity has a front end in fluid communication with the receptacle, and has a rear end. And the valve assembly is disposed in the cavity, includes a first sealing ring, is configured to form a seal by urging the sealing ring against the rear end of the cavity in response to the valve-opening-and-fluid-dispensing device being absent from the receptacle, and is configured to allow fluid to flow into the rear end of the cavity in response to the valve-opening-and-fluid-dispensing device being disposed in the receptacle.

The invention is directed to a method to improve accuracy of a meter. The method first contemplates introducing a desired fluid into a valve assembly having an external casing with an inlet, outlet and interior side forming a chamber. Next, a desired fluid contacts a toggle stopper having a shaft, plate, and guides. A calibrated spring positioned around the shaft in contact with the plate assesses if the desired fluid meets a predetermined pressure. If the fluid meets this threshold, the calibrated spring compresses thereby toggling plate within the chamber to allow desired fluid to enter the chamber. Should the total pressure of the desired fluid and/or an undesired fluid create a pressure that fails to meet the predetermined pressure, the calibrated spring expands to seal the valve assembly. Upon such seal, there is an equalizing of both the desired and undesired fluids to the same pressure by decreasing the volume of the undesired fluid, causing the calibrated spring to compress and reopen.