Which process is used to clean piping lines by injecting steam to remove debris before commissioning?

Which process is used to clean piping lines by injecting steam to remove debris before commissioning?

• A. Steam flushing
• B. Hydrostatic testing
• C. Steam blowing
• D. Air Purging

Answer: (C)

Cleaning piping lines by injecting steam to remove debris before commissioning is accomplished through steam blowing. This method forces steam through the piping at high velocity so loose materials—like welding slag, rust, or scale—are carried out of the line and out through vents or drains. By pushing debris out before fluids are introduced, steam blowing helps prevent blockages, fouling, or damage to pumps, valves, and heat exchangers when the system starts up. It’s typically performed after initial pressure testing and before charging the system with process fluid, with proper isolation, venting, and debris capture in place. While steam flushing or other cleaning methods may be used in some contexts, the distinctive high-velocity steam removal described here defines steam blowing.

Cleaning piping lines by injecting steam to remove debris before commissioning is accomplished through steam blowing. This method forces steam through the piping at high velocity so loose materials—like welding slag, rust, or scale—are carried out of the line and out through vents or drains. By pushing debris out before fluids are introduced, steam blowing helps prevent blockages, fouling, or damage to pumps, valves, and heat exchangers when the system starts up. It’s typically performed after initial pressure testing and before charging the system with process fluid, with proper isolation, venting, and debris capture in place. While steam flushing or other cleaning methods may be used in some contexts, the distinctive high-velocity steam removal described here defines steam blowing.