What is the first step in conducting a hydrostatic test on a boiler?

The initial step in conducting a hydrostatic test on a boiler is to fill the boiler with water. This is essential because the purpose of a hydrostatic test is to assess the integrity and strength of the boiler's structure. By introducing water, it creates the necessary environment to check for any weaknesses or flaws in the boiler’s construction.

Filling the boiler with water allows for the system to be under a controlled pressure without introducing any risks associated with vapor or steam. Water is incompressible, which makes it a better medium for determining whether there are any leaks or weaknesses in the pipes, joints, and overall boiler integrity.

Once the boiler is filled, subsequent steps, like checking for leaks and increasing the pressure, can then be safely conducted. Proper preparation and following this order ensures the test is effective and minimizes risks associated with high-pressure systems.