A freeze resistant sanitary hydrant is provided that employs a reservoir for storage of fluid under the frost line or in an area not prone to freezing. To evacuate this reservoir, a means for altering pressure is provided that is able to function in hydrant systems that employ a vacuum breaker.

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.

A hydrant device includes a faucet body, a rotation shaft, an upper rotation cap, a check valve, a switch valve, a lower fixed cap, and a water intake seat. The faucet body is provided with a rotary knob connected with the rotation shaft which is connected with the upper rotation cap. A first elastic member is biased between the rotation shaft and the upper rotation cap. A second elastic member is biased between the upper rotation cap and the check valve. The check valve is provided with a stop face. The switch valve is combined with the upper rotation cap. The water intake seat is mounted on the faucet body. Thus, the stop face forms an anti-reverse state to seal the switch valve, thereby preventing water from being gathered in the switch valve.

An adjustable operating rod assembly is provided. In one embodiment a telescoping rod and tube are provided such that the length of the operating rod can be selectively adjusted in order to accommodate fluid inlet pipes of various lengths and regardless of manufacturer.

A flow control valve for a liquid conduit, such as a fire hydrant valve for insertion in a fire hydrant conduit, comprises a fixed valve body mountable inside the liquid conduit, a displaceable valve body, and an actuator assembly operatively engageable with the displaceable valve body. The fixed valve body has a peripheral wall and defines a longitudinal passageway, and at least one upstream port and a downstream port. The displaceable valve body is inserted into the longitudinal passageway of the fixed valve body and is linearly displaceable therealong between a closed configuration and at least one open configuration. The actuator assembly is operable to linearly displace the displaceable valve body along the longitudinal passageway of the fixed valve body between the closed configuration and the at least one open configuration.

A system for controlling water delivery in to and out from a structure. A plurality of sensors disposed within the structure determine one or both of a water leak from a water delivery system within the structure and a temperature. A transmitter associated with each one of the plurality of sensors transmits a signal to a controller, the signal indicates a water leak from the water delivery system or a temperature below a predetermined value. A plurality of valves within the structure control the flow of water in to the structure, out from the structure, and within the structure. The controller receives the signal and responsive thereto opens or closes one or more valves to stop water delivery into the structure, to drain water out from the structure, or to control water delivery within the structure.

An insulated self-supporting water hydrant operating apparatus includes a molded exterior configured to provide stability and rigidity for standalone and alternative applications, a frost-free water valve, internal water conduit linked to an external water source, and expanding foam insulation to fill in all spaces inside the molded exterior shell and protect the plumbing and insulation from extreme weather conditions.

A hydrant device includes a faucet body, a rotation shaft, an upper rotation cap, a check valve, a switch valve, a lower fixed cap, and a water intake seat. The faucet body is provided with a rotary knob connected with the rotation shaft which is connected with the upper rotation cap. A first elastic member is biased between the rotation shaft and the upper rotation cap. A second elastic member is biased between the upper rotation cap and the check valve. The check valve is provided with a stop face. The switch valve is combined with the upper rotation cap. The water intake seat is mounted on the faucet body. Thus, the stop face forms an anti-reverse state to seal the switch valve, thereby preventing water from being gathered in the switch valve.

Ways of monitoring the temperature of a hose bibb are provided. A system includes a temperature sensor for detecting the temperature of the hose bibb, a communication module for transmitting signals to a network, and a controller in electronic communication with the temperature sensor and the communication module. The controller is configured to a signal representative of the temperature of the hose bibb from the temperature sensor and is further configured to activate the communication module to transmit the signal to the network when the hose bibb temperature falls below a predetermined threshold. The system may also include a heating module configured to be activated by the controller to heat the hose bibb upon the temperature falling below the first predetermined temperature. The system provides real-time monitoring and alerts for militating against freezing conditions of the hose bibb, enhancing the efficiency and safety of hose bibb operations.

An anti-siphon system for use with an irrigation system, such as lawn sprinkling system is disclosed. The system includes a backflow prevention valve with a bonnet- and poppet valve system with a conical spring that biases a lower poppet valve head, and engages the valve body. The use of the conical spring simplifies the mechanism, while providing reliable backflow prevention.