首页 » News

Stage III Vapor Recovery Piping: Installation and Leak-Tightness Testing for Underground Fuel Systems

Stage III Vapor Recovery Piping: Installation and Leak-Tightness Testing for Underground Fuel Systems Stage III vapor recovery moves the vapor-handling work from the dispenser back to the underground storage tank, and the quality of the underground pipe run between tank and dispenser largely decides whether the system recovers vapor or just leaks it. For contractors […]

Stage III Vapor Recovery Piping: Installation and Leak-Tightness Testing for Underground Fuel Systems Read More »

Electrofusion and Bedding Practices for Underground Composite Fuel Pipe Installation

Underground composite fuel pipe installation demands precise fusion control, correct bedding, and careful trench preparation. This guide covers the practical, field-level workflow for laying Ai Yuan dual-layer and single-layer HDPE/EVOH composite pipes at service stations. Understanding the Ai Yuan Composite Pipe Construction The Ai Yuan fuel pipe from Luoyang Wohong Petrochemical is not a single-material

Electrofusion and Bedding Practices for Underground Composite Fuel Pipe Installation Read More »

How to Specify Underground Fuel Dispensing Pipes for a Service Station Retrofit

How to Specify Underground Fuel Dispensing Pipes for a Service Station Retrofit Choosing the right underground fuel piping for a service station is a decision that stays buried for decades. A bad choice means excavation, downtime, and cost overruns down the road. This article walks through the practical engineering aspects of selecting, installing, and maintaining

How to Specify Underground Fuel Dispensing Pipes for a Service Station Retrofit Read More »

Underground Composite Vapor Return Line: Design, Jointing and Installation for Stage III Vapor Recovery

Introduction to Stage III Vapor Recovery Underground Piping Stage III vapor recovery systems require a vapor-tight underground piping network between the dispenser and the storage tank that can hold up under continuous sub-atmospheric suction, gasoline permeation, and ground movement. For a gas station operator or contractor, the pipe material and jointing method you choose determines

Underground Composite Vapor Return Line: Design, Jointing and Installation for Stage III Vapor Recovery Read More »

Underground Composite Fuel Pipe Selection: Material, Installation, and Maintenance Guide

Why Material Selection Still Drives Every Underground Fuel Pipe Project Every underground fuel-piping project eventually comes down to one decision that affects safety, service life, and long-term cost: the pipe material. After years of field experience with HDPE-EVOH composite double-wall systems and single-wall alternatives, buyers, engineers, and contractors have learned that the spec sheet is

Underground Composite Fuel Pipe Selection: Material, Installation, and Maintenance Guide Read More »