Choosing between coil (盘管) and straight pipe (直管) for gas station underground composite fuel lines affects joints, layout, excavation, and long-term reliability. Here is a practical engineering guide to deciding which form fits your site. 1. Why Pipe Form Factor Matters in Underground Fuel Systems The choice between coil and straight pipe is not cosmetic. […]

1. Introduction Installing underground composite piping systems at retail fuel stations is a precision job that directly affects long-term operational safety and maintenance costs. Unlike steel or fiberglass piping, HDPE+EVOH composite pipes have different handling, jointing, and backfill requirements. This article walks through the practical installation workflow for Luoyang Wohong Petrochemical’s Ai Yuan composite pipes,