Which method of pipe sizing requires only measuring the length from the meter to the most remote outlet?

The method of pipe sizing that requires only measuring the length from the meter to the most remote outlet is based on the concept of determining pressure drops and ensuring adequate gas delivery to all outlets along the specified run. This method focuses on the longest length, as the most remote outlet will generally dictate the maximum pressure drop and size needed to ensure sufficient gas flow throughout the system.

By measuring the longest length, it allows for the inclusion of the total resistance the gas will encounter, ensuring that the system can adequately supply gas even at the furthest point. This approach helps engineers and technicians to size the pipe appropriately, taking into account the maximum potential distance gas must travel, which is critical for maintaining performance across the entire system.

Other methods, such as shortest length, average length, or equivalent length, may not adequately accommodate the variations present in a gas distribution system, leading to potential issues with insufficient gas flow, particularly at the outlet that is furthest from the source. Therefore, prioritizing the longest length for pipe sizing is essential for achieving a reliable and efficient fuel gas system.