Protection cap assembly with leak detection capability for a pressurized valve

A cap assembly for signaling passage of pressurized fluid from a vent conduit connected to a pressurized valve, the cap assembly comprising:

• a body portion connectable in fluid communication with the vent conduit;
• a sensor supported by the body portion adapted to provide a direct human sensory indication of pressurized fluid exhausting from the vent conduit responsive to a leak of said fluid through the valve while the valve is in a normally closed position;
• and
• a tether which attaches the body portion to the vent conduit, the tether having a slip loop that surrounds the body portion and tightens to mechanically collapse the body portion in response to ejection of the body portion from the vent conduit as the pressurized valve transitions from the normally closed position to an open position, the slip loop attached to the body portion at a single attachment point.

A cap assembly for signaling passage of pressurized fluid from a vent conduit connected to a pressurized valve moveable between a closed position and an open position, the cap assembly comprising:

• a body portion adapted to cover a distal end of the vent conduit, the body portion having an annular sidewall sized to fit about an annular outermost surface of the distal end of the vent conduit and a top portion which extends across the annular sidewall to enclose said body portion, the top portion extending at a first angle non-orthogonal with respect to a longitudinal axis of the vent conduit, a bottom edge surface of the annular sidewall extending at a different second angle non-orthogonal to the longitudinal axis of the vent conduit;
• a whistle coupled to the body portion in fluidic communication with an interior of the vent conduit;
• and
• a tether having opposing first and second ends, the tether forming a first loop at said first end that surrounds and contactingly engages the body portion and a second loop at said second end that surrounds and contactingly engages the vent conduit, wherein while the valve is in the closed position, the body portion is adapted to remain disposed on the distal end of the vent conduit and the whistle is adapted to emit a human audible whistle responsive to a leak of pressurized fluid through the pressurized valve.