A non-invasive thermal dispersion flow meter with chronometric monitor for fluid leak detection includes a heater, an ambient temperature sensor and a flow rate sensor which are configured to sense the temperature of a fluid in a conduit, and then monitor the flow of that fluid through the conduit. Based upon the ambient temperature sensor readings, the flow rate sensor and heater may be adjusted to optimize the operation of the system to detect leaks. Based on the sensor readings, the flow may be adjusted to prevent damage and leaks by relieving the system of excess pressure. Geographic location, occupancy sensors and occupant identifiers are used to control the system to facilitate operation and minimize leak damage when occupants are away.

The present invention is provide an industrial hydrant comprising an inlet operatively connected to a hydrant body. An inlet valve is in fluid communication with the inlet. A valve guiding is operatively connected to the inlet valve. A main valve within the inlet valve has a main valve outer diameter greater than six inches. The main valve is operatively connected to the valve guiding. A pilot valve within the inlet valve is operatively connected to the main valve and the valve guiding. The pilot valve has a pilot valve outer diameter that is less than the main valve outer diameter.

The present invention is provide an industrial hydrant comprising an inlet operatively connected to a hydrant body. An inlet valve is in fluid communication with the inlet. A valve guiding is operatively connected to the inlet valve. A main valve within the inlet valve has a main valve outer diameter greater than six inches. The main valve is operatively connected to the valve guiding. A pilot valve within the inlet valve is operatively connected to the main valve and the valve guiding. The pilot valve has a pilot valve outer diameter that is less than the main valve outer diameter.

Disclosed herein is a fire hydrant valve (easy action valve) that is usable alone quickly in the event of fire, and more particularly, a fire hydrant valve that is usable alone quickly in the event of fire, which can be even opened from a long distance away. The fire hydrant valve includes a body formed with a first opening and a second opening, a switching unit including a rod configured to penetrate the body, and a disk provided at an end of the rod to open and close the first opening, and a first movement unit connected to the rod and a hose connected to the second opening and configured to move the rod in response to movement of the hose.

Disclosed herein is a fire hydrant valve (easy action valve) that is usable alone quickly in the event of fire, and more particularly, a fire hydrant valve that is usable alone quickly in the event of fire, which can be even opened from a long distance away. The fire hydrant valve includes a body formed with a first opening and a second opening, a switching unit including a rod configured to penetrate the body, and a disk provided at an end of the rod to open and close the first opening, and a first movement unit connected to the rod and a hose connected to the second opening and configured to move the rod in response to movement of the hose.

A hose coupling for a hydrant has a ventilation device. The ventilation device has a non-return valve that is received in a receptacle incorporated into an outer flange of the hose coupling.

A hose coupling for a hydrant has a ventilation device. The ventilation device has a non-return valve that is received in a receptacle incorporated into an outer flange of the hose coupling.

A hydrant valve system having a hydrant main valve with a main valve body and a valve seat where the main valve body can be moved axially in relation to the valve seat, and a housing that defines a clearance volume into which the main valve body can be moved. The hydrant valve system also has a sealing body that is provided in the clearance volume where the sealing body has a higher density than water.

A hydrant valve system having a hydrant main valve with a main valve body and a valve seat where the main valve body can be moved axially in relation to the valve seat, and a housing that defines a clearance volume into which the main valve body can be moved. The hydrant valve system also has a sealing body that is provided in the clearance volume where the sealing body has a higher density than water.

A method for manufacturing a nozzle cap, the method including attaching an antenna printed circuit board (PCB) strip to an inner cover surface of an antenna cover; and inserting the antenna cover into a scallop defined by a circumferential wall of a cap body to position the antenna PCB strip between the antenna cover and the circumferential wall, the circumferential wall defining an outer wall surface, the antenna cover covering the scallop, the scallop extending radially inward into the circumferential wall relative to a first portion and a second portion of the outer wall surface, the scallop circumferentially positioned between the first portion and the second portion of the outer wall surface.