Electrofusion Fitting Installation Guide for Ai Yuan HDPE Composite Underground Piping Systems Proper installation of electrofusion fittings is one of the most critical factors in ensuring leak-free, long-lasting underground composite piping systems at fuel stations. Ai Yuan HDPE composite pipes rely on high-quality electrofusion fittings made from imported PE raw materials, and the jointing process […]

Why Pipe Integrity Matters in Stage III Vapor Recovery Systems Stage III vapor recovery systems are now standard at modern fueling stations across many regions. These systems capture fuel vapors displaced during vehicle refueling and return them to the underground storage tank, preventing volatile organic compounds from escaping into the atmosphere. While much attention goes

Introduction When building or upgrading underground fuel piping systems at service stations, the most technically demanding connections are often the so-called “transition points”—where a flexible HDPE composite underground pipe meets a rigid metallic tank stub, a dispenser sump entry, or a vent riser. Correctly specifying and installing transition fittings, adapters, and mechanical joints is essential

Introduction When building or upgrading underground fuel piping systems at service stations, the most technically demanding connections are often the so-called “transition points”—where a flexible HDPE composite underground pipe meets a rigid metallic tank stub, a dispenser sump entry, or a vent riser. Correctly specifying and installing transition fittings, adapters, and mechanical joints is essential

Introduction Electrofusion jointing is the most reliable method for connecting underground HDPE composite pipes at fuel dispensing stations. Unlike traditional butt fusion or mechanical couplings, electrofusion creates a homogenous, leak-proof joint that maintains the structural integrity of the entire pipe system. For gas station operators and installation teams working with Ai Yuan brand composite pipes