What does the term "gas pressure drop" refer to?

The term "gas pressure drop" specifically refers to the decrease in gas pressure as the gas flows through the pipes. This phenomenon occurs due to factors such as friction between the gas and the pipe walls, changes in pipe diameter, and fittings within the system that can create turbulence.

Understanding this concept is crucial for gas fitters, as significant pressure drops can affect the performance of gas appliances and the overall efficiency of the system. Ensuring proper calculations and adjustments during installation and maintenance helps maintain adequate pressure levels throughout the gas distribution system. Therefore, recognizing that the pressure diminishes as the gas travels is vital for troubleshooting and ensuring safety in any gas-fitting operations.