A hydrant valve with an internal automatic shut-off valve. The internal valve blocks communication between a piston chamber and a hydrant chamber when in a closed position. An upper valve opens the internal valve against its biasing force permitting the flow of fluid between the hydrant chamber and the piston chamber. The internal valve closes in response to a disconnection of the upper valve.

A fire hydrant nozzle includes an annular sleeve. The annular sleeve has an annular wall, an inlet end, and an outlet end. The inlet end has a fire hydrant connection element configured to couple with a fire hydrant outlet, the outlet end has a fire hose connection element configured to couple with a fire hose, and the fire hydrant connection element has a portion protruding radially inward.

A method of processing measurements of a fluid inside a fluid distribution system includes receiving data wirelessly into a communications hub from a sensing device of a hydrant, the communications hub positioned inside a bonnet cavity of the hydrant, the communications hub including: a PCB; at least one battery in electrical communication with the PCB; and a first antenna in electrical communition with the PCB; a second antenna in electrical communition with the PCB; and transmitting the data to the second antenna.

A method of measuring a characteristic of a fluid inside a fluid distribution system includes receiving a fluid inside a channel of a vein of a stem of a hydrant; recording data corresponding to the characteristic of the fluid with a sensing device, the sensing device including: a housing; a vein in sealing contact with the housing, the vein defining a channel extending from a lower end of the vein to an upper end of the vein; a sensor facing the channel and in sealing contact with the vein; at least one battery in electrical communication with the sensor and positioned within the housing; and an antenna in electrical communication with the sensor; and transmitting the data to the antenna.

A method of measuring a characteristic of a fluid inside a fluid distribution system includes receiving a fluid inside a channel of a vein of a stem of a hydrant; recording data corresponding to the characteristic of the fluid with a sensing device, the sensing device including: a housing; a vein in sealing contact with the housing, the vein defining a channel extending from a lower end of the vein to an upper end of the vein; a sensor facing the channel and in sealing contact with the vein; at least one battery in electrical communication with the sensor and positioned within the housing; and an antenna in electrical communication with the sensor; and transmitting the data to the antenna.

An infrastructure monitoring assembly includes a fire hydrant; a pipe connected in fluid communication with the fire hydrant, a fluid at least partially filling the pipe; a sensor positioned in the fluid, the sensor configured to measure a parameter of the fluid; and a processor connected in communication with the sensor, the processor configured to receive a signal from the sensor.

An infrastructure monitoring assembly includes a fire hydrant; a pipe connected in fluid communication with the fire hydrant, a fluid at least partially filling the pipe; a sensor positioned in the fluid, the sensor configured to measure a parameter of the fluid; and a processor connected in communication with the sensor, the processor configured to receive a signal from the sensor.

Example aspects of a nozzle cap for a fire hydrant and a method for manufacturing a nozzle cap to detect leaks in a fluid system are disclosed. The nozzle cap for a fire hydrant can comprise a cap body, the cap body comprising an inner housing and an outer housing, the outer housing defining a cavity; a vibration sensor received within the cavity and configured to detect leaks in a fluid system connected to the fire hydrant; and a metal insert contacting the vibration sensor and the inner housing.

Example aspects of a nozzle cap for a fire hydrant and a method for manufacturing a nozzle cap to detect leaks in a fluid system are disclosed. The nozzle cap for a fire hydrant can comprise a cap body, the cap body comprising an inner housing and an outer housing, the outer housing defining a cavity; a vibration sensor received within the cavity and configured to detect leaks in a fluid system connected to the fire hydrant; and a metal insert contacting the vibration sensor and the inner housing.

A hydrant includes: a hydrant body defining a hydrant inner cavity, the hydrant configured to couple to and be in fluid communication with a fluid distribution system including a fluid therein under pressure; and a break check valve coupled to the hydrant body, the valve including: a valve body defining a valve inner cavity, the hydrant inner cavity defining a valve bore in fluid communication with the fluid during normal operation of the hydrant; a valve member configured to rotate from an open position to a closed position of the valve; and an arm in contact with the hydrant and configured to prevent movement of the valve member when the hydrant is coupled to the valve, the valve defining a hole separate from the valve bore and in fluid communication with each of the hydrant inner cavity and the valve inner cavity.