Motion activated safety relief for isolation test plug

A method for relieving a pressure or an energy from an outward motion of a plug from an opening of the pipe, comprising the steps of:

• providing a cage for the pipe, wherein the cage comprises a catch ring connected to a clamp ring, wherein the catch ring and the clamp ring are connected by at least one cage support member;
• and a valve connected to the cage, wherein the valve is initially in a closed position of the valve before the outward motion of the plug;
• securing the clamp ring to an exterior surface of the pipe;
• positioning the catch ring above the opening of the pipe;
• actuating the valve to an open position of the valve as a result of the outward motion of the plug to relieve the pressure or the energy.

A safety device for releasing a pressure or an energy from an outward motion of a plug from an opening of the pipe, comprising:

• a cage having a catch ring and a clamp ring, wherein the catch ring and the clamp ring are connected via a cage support member;
• a middle ring between the catch ring and the clamp ring, wherein the middle ring is connected via the cage support member to the catch ring and the clamp ring;
• wherein the clamp ring is configured to secure the cage to an exterior of the pipe despite the pressure or the energy release;
• a valve, wherein the valve is configured to be actuated from a closed position initially to an open position;
• wherein the valve comprises a valve fitting on the catch ring and a valve stem inserted through the valve fitting and extending past a rear surface of the catch ring;
• and
• a tubing connecting the valve fittings to the plug.