Locking cap for fire department connections

A locking cap for a pipe end, the locking cap comprising:

• a first portion comprising a front cover having a front surface and a rear surface;
• a second portion axially movable relative to the first portion, the second portion comprising a plug portion comprising a front surface, a rear surface, and a central region extending between the front surface and the rear surface, the plug portion sized and configured to be received by the pipe end with a side surface of the central region of the plug portion having a surface area generally coextensive with an inner contact surface of the pipe end, wherein the second portion further comprises a threaded region disposed on the central region configured to mate with the pipe end;
• and
• a tool receiver accessible through the front surface of the plug portion, wherein when the locking cap is in a locked position a gap between a nut and the plug portion is increased compared to when the locking cap is in an unlocked position, wherein the nut is attached to a fastener that fastens the front cover to the plug portion, and wherein the fastener increases an axial load between threads of the plug portion and threads of a swivel portion of the pipe end resisting rotation of the plug portion relative to the swivel portion when in the locked position.