Patent ID: 11964176
Assignee: nan
Field: Environmental technology (Chemistry)
Classification: CPC A  F | IPC A  F

Claim 0:
1. A protective device for preventing tampering with a fire control system in a building the protective device comprising:
a pipe in the fire control system, the pipe for transmission of a flow of a fluid from an upstream end of the pipe fire control system, at a fire department connection, to a downstream end of the fire control system, at sprinklers within the building;
a pipe insert, disposed within the fire control system between the upstream and downstream ends, the pipe insert comprising a cylindrical body;
a valve within the pipe insert, the valve moveable between open and closed positions, wherein the open position opens the pipe insert, enabling transmission of the flow of the fluid, and the closed position occludes the pipe insert, disabling transmission of the flow of the fluid; and
a sensor within the pipe insert for disposition within the flow of the fluid to detect a target compound in the pipe insert; wherein
the valve moves from the open position to the closed position when the sensor detects the target compound.