News - Vohon Petrochemical

Single-Wall vs Double-Wall Underground Composite Pipe: A Selection Guide for Fuel Stations

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, […]

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Coil Pipe Handling and Pay-Out Guide for Underground Composite Pipe at Gas Station Fuel Sites

Why Coil Pipes Are Used in Gas Station Underground Fuel Lines Flexible HDPE+EVOH composite pipe is delivered in coils as well as straight 6-meter sections. For underground fuel lines at retail service stations, the coiled format is preferred for long horizontal runs because it removes most field joints. Every joint in an underground fuel system

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How Underground Composite Pipes Protect Fuel Stations Against Leaks and Corrosion

How Underground Composite Pipes Protect Fuel Stations Against Leaks and Corrosion Underground fuel lines are the most failure-prone part of a modern service station, yet they are also the most ignored until something goes wrong. A slow leak in a buried HDPE pipe may go unnoticed for months, contaminating soil and groundwater before any dip

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Designing Stage III Vapor Recovery Piping with HDPE Composite Pipes

Designing Stage III Vapor Recovery Piping with HDPE Composite Pipes Read More »

Why Underground Composite Pipes Matter in Stage III Vapor Recovery Systems

Why Underground Composite Pipes Matter in Stage III Vapor Recovery Systems Read More »