What process should be conducted when pressure testing a piping system?

Filling the system with water, pressurizing it, and checking for leaks is the standard procedure for pressure testing a piping system. This method ensures that the piping is capable of withstanding the specified pressure while also allowing for the identification of any leaks or weaknesses that may be present in the system.

The process begins with filling the piping system with water, which is generally preferred over air for safety reasons. Water does not compress like air, significantly reducing the risk of explosive decompression if a leak is found during the test. Once the system is filled, it is pressurized to the required level as specified in the relevant codes or standards for the materials used. After achieving the desired pressure, the system is monitored for a set period, typically looking for signs of leaks. The presence of any leak will result in a drop in pressure, indicating that a fault exists in the system.

This systematic approach not only confirms the integrity of the piping and fittings but also ensures compliance with safety and regulatory standards, which are critical in a professional work environment.