Abstract: An inerting system for a fire protection sprinkler system and method of inerting a fire protection sprinkler system to reduce the concentration of oxygen includes connecting an inert gas supply system with the piping network of the fire protection sprinkler system. The gas supply system includes a plurality of tank adapters, an automatic fill valve, an automatic vent valve and at least one pressure transducer. Each of the tank adapters is adapted to connect with a tank of inert gas and to selectively connect the tank of inert gas with said automatic fill valve. A control controls the gas supply system including operating the automatic fill valve and the automatic vent valve in order to increase the proportion of inert gas in the piping network. The control monitors the at least one pressure transducer to determine the pressure of gas at least in the tank connected with the automatic fill valve.

Abstract: A fire sprinkler system according to one aspect of the present disclosure includes a pipe having a first pipe portion and a second pipe portion. The first pipe portion includes a wall having a first wall thickness, and the second pipe portion includes a wall having a second wall thickness that is greater than the first wall thickness. The fire sprinkler system further includes structure coupled to the pipe and defining a sealed chamber between the structure and at least the first pipe portion, and a sensor for sensing a pressure in the sealed chamber. Example corrosion monitoring devices and methods for monitoring corrosion in pipe systems, including fire sprinkler systems, are also disclosed.

Abstract: An automatic electrical gas vent, method and resulting fire protection sprinkler system, is useful with a water source and at least one sprinkler. The at least one sprinkler is connected with the water source by a piping network. An automatic electrical gas vent is adapted to be connected with the piping network to discharge gas from said piping network. The automatic electrical gas vent includes an electrically operated valve that is electrically actuatable to discharge from said piping network and a sensor. The sensor senses the presence of gas at a portion of the piping network and causes actuation of the valve to discharge from the piping network in the absence of a conductive liquid.

Abstract: A fire protection sprinkler system inerting apparatus and method includes selectively connecting an inert gas source and a gas vent to the fire protection sprinkler system with a valve system and controlling the valve system. The valve system is controlled to selectively connect the inert gas source with the sprinkler system to add inert gas to the sprinkler system to increase the proportion of inert gas in the gas mixture within the sprinkler system and to operate the gas vent to discharge a portion of the gas mixture from the sprinkler system.