For a gas line with a 127-foot length, using undiluted LP gas with a specific gravity of 1.50, what size metallic pipe is required?

To determine the appropriate size of the metallic pipe for a gas line carrying undiluted LP gas with a specific gravity of 1.50 over a length of 127 feet, calculations based on gas flow rates and pressure drops are critical.

The correct answer indicates that a 2-inch pipe is required based on the specific requirements for LP gas, considering its density and flow characteristics. LP gas has a higher density due to its specific gravity of 1.50 compared to air, influencing the flow rate and the pressure requirements in the system. When sizing a gas pipe, factors like the flow volume, distance, and type of gas must be considered to ensure adequate supply without significant pressure drops.

A 2-inch pipe is typically suitable for the expected flow rates and gas properties in this scenario. It ensures that the system can deliver sufficient gas volume while maintaining system integrity and safety. Using smaller pipes could lead to issues such as restricted flow or increased pressure loss, which could compromise the efficiency of the gas distribution system.

In summary, the selection of a 2-inch pipe signifies an understanding of the LP gas characteristics and the requirements for safe and efficient gas delivery over the specified distance.