What should be the procedure in making repairs after experiencing a high pressure fitting leak?

The procedure for making repairs after a high-pressure fitting leak prioritizes safety and effective handling of the situation. Depressurizing the system to gauge zero immediately is crucial because it prevents potential hazards associated with high pressure, such as injuries from sudden releases, explosions, or further damage to the equipment. By ensuring that the pressure is relieved, workers can proceed with repairs safely, mitigating risks associated with working on pressurized systems.

In addition to safety, depressurization allows for a more thorough inspection of the leak source and the surrounding components, making it easier to perform a complete and effective repair. Adequate time should be taken to assess the situation before moving forward with any repair work, which is safely facilitated by first relieving pressure.

Other options lack the necessary safety precautions required for handling repairs on high-pressure systems. For example, attempting repairs while the system is active poses immediate danger to workers, making it an unsafe choice. Sealing the leak temporarily does not solve the underlying issue and could potentially exacerbate the situation. Waiting for the system to cool down can be relevant in other contexts where heat is a concern, but it does not address the critical need to relieve pressure in a high-pressure fitting leak scenario.