News - Vohon Petrochemical

Underground Composite Pipe Systems for Fuel Stations: Material, Installation & Selection Guide

Fuel station underground composite piping is a specialized delivery system engineered for the safe transfer of gasoline and diesel from storage tanks to dispensers. This article examines the material structure, installation requirements, and field maintenance practices for HDPE/EVOH composite double-wall pipe systems, with practical guidance for procurement engineers and installation contractors alike. 1. Understanding the […]

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Double-Layer Composite Fuel Pipe Installation and Selection Guide for Service Stations

Why Underground Composite Pipes Dominate Modern Fuel Service Station Piping Fuel service station operators and pipeline contractors across the world are steadily moving away from single-layer pipe systems toward engineered composite structures. The reason is simple: a fuel station underground line lives in a harsh world of soil pressure, vehicle traffic, groundwater, and chemical attack,

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Stage III Vapor Recovery Liquid Management: Engineering Practices to Keep the Return Line and Blower Free of Carryover

Why Liquid Megament in Vapor Recovery Lines Deserves More Attention A Stage III vapor recovery system only performs as well as its weakest branch, and in high-throughput stations that weak point is almost always liquid carryover. Gasoline vapor drawn back from the dispenser nozzle is rarely pure; it carries entrained fuel droplets, condensation, and the

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How to Install Double-Wall Underground Composite Pipe at a Fuel Station: A Field Guide for Contractors

How to Install Double-Wall Underground Composite Pipe at a Fuel Station: A Field Guide for Contractors Underground piping is the most maintenance-hostile part of any fuel station installation. Once the trench is backfilled, rework means excavation costs, downtime, and paperwork you do not want. For contractors and foremen who install Ai Yuan HDPE/EVOH double-wall composite

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EVOH Composite Fuel Pipes for Stage III Vapor Recovery: Material, Joining, and Testing

EVOH composite pipes for Stage III vapor recovery stop fuel vapor permeation and corrosion under canopies and join by electrofusion. Why Fuel Stations Need Barrier Composite Piping Underground fuel lines must satisfy two conflicting requirements at the same time. They have to resist chemical attack from aggressive fuel blends, and they have to stop hydrocarbon

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