The present invention relates to a connector (100) for a water system. The connector comprises an inlet connector (105), a connector body and an outlet connector (120) arranged in sequence. The connector body is open-sided so as to form a tundish having an open air gap between the inlet and outlet connectors (105, 120), through which water can fall in use. The connector (100) further comprises a sensor for detecting the presence of water within the connector body.

A wireless communication system includes a plurality of sensors and a device. Each sensor is configured to measure data and communicate over a network using low power signal communication. The device is connected to an in-wall power source and configured to wirelessly communicate over the network using low power signal communication. Further, the device is configured to transmit data from the sensors to a remote gateway using high power signal communication.

A sanitary insertion unit (1), including an insertion housing (6), in which insertion housing a valve having a valve piston (10) is provided, which valve piston is slidably guided in the insertion housing and can be moved from a resting position under the pressure of the inflowing water against the restoring force of at least one restoring element (11). The restoring unit has at least one movement damper (12, 13), which damps or brakes the movement of the valve piston from the resting position to the open position.

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.

A wireless communication system includes a plurality of sensors and a device. Each sensor is configured to measure data and communicate over a network using low power signal communication. The device is connected to an in-wall power source and configured to wirelessly communicate over the network using low power signal communication. Further, the device is configured to transmit data from the sensors to a remote gateway using high power signal communication.

In an exemplary embodiment, an emergency backflow preventing system is disclosed that includes an inflatable bladder, an air supply line demountably coupled to the inflatable bladder, a valve demountably coupled to the air supply line, and an air source functionally coupled to the valve. The inflatable bladder includes a deflated state and an inflated state and is substantially void of air in the deflated state. The inflatable bladder is configured to be inserted within a sewage pipe when in the deflated state. The inflatable bladder is configured to contact a bore of the sewage pipe when in the inflated state and thereby wedge itself within the sewage pipe. The inflatable bladder comprises an elastic polymer. The valve comprises a Schrader valve and an air pressure gauge. A cable is positioned within the air supply line and is anchored within the valve and the inflatable bladder.

A bidet comprises a water supply valve opened and closed to allow water to flow and including a backflow preventing means preventing water from flowing backward to a water inlet side; a heating portion heating water supplied through the water supply valve; and a backflow preventing member disposed on a rear end of the water supply valve and allowing water to be supplied or preventing water from flowing backward to the water inlet side due to water pressure, wherein the backflow preventing means and the backflow preventing member prevent water from flowing backward to the water inlet side in concert.

A vacuum release valve includes: a tube body and an elastic valve. The tube body is provided with at least one venting opening, and the tube body has a stopping portion at one end of the venting opening and a flange at the other end. The elastic valve is provided with a ring, and the ring has a tubular portion. The tubular portion is retracted to form two inclined surfaces and a linear gap. The elastic valve is installed in the tube body, and the ring and the tubular portion respectively press against the stopping portion and the flange of the tube body. When the tubular portion is elastically deformed due to the vacuum suction, the venting opening communicates with the output end, and then the external air is introduced. The inclined surface can withstand reverse water pressure and close the linear gap and the venting opening.

A device and method to improve accuracy of a water meter where a fluid is introduced into a valve assembly having an external casing. The 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 yes, the calibrated spring compresses thereby toggling the plate within the chamber to allow desired fluid to enter the chamber. If no, the calibrated spring remains in an expanded state 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.

The invention relates to a water-saving device which is fully automated and comprises a complete electronic control system, the possibility of connection to the aqueduct supply network and a hydraulic generator for saving energy. The device according to the invention communicates with a modular system that optionally reduces the water flow of the shower to 50% and diverts the other 50% to the storage tank, by means of the electronic interface. The device according to the invention is applicable in the construction industry.