Stage III Vapor Recovery Equipment for Gas Stations

HDPE conductive composite pipe with EVOH barrier layer is manufactured through multi‑layer co‑extrusion process, specially developed for underground fuel transfer systems at gas stations. The pipe wall consists of conductive HDPE inner layer, adhesive tie‑layer, EVOH barrier layer and high‑strength HDPE structural outer layer. Conductive carbon‑based fillers are uniformly dispersed within the inner HDPE matrix, […]

Underground fuel piping forms the critical backbone of every gas station. Aging steel pipelines suffer from corrosion, vapor permeation and static‑charge risks, creating environmental leaks and hidden explosion hazards. The VOHON multi‑layer co‑extruded composite pipe is purpose‑built for underground fuel transfer, combining HDPE base resin, EVOH barrier material, conductive masterbatch and imported adhesive through precision

Stage III vapor recovery systems are designed to capture hydrocarbon vapors that would otherwise escape into the atmosphere when fuel is dispensed into a vehicle tank. While the nozzles, hoses, and dispensers often draw the most attention, the underground piping network is the backbone that determines whether the whole system actually performs. Getting the underground

Why Underground Composite Piping Is the Backbone of Modern Stage III Vapor Recovery Stage III vapor recovery systems exist to do one thing: stop fuel vapors from escaping into the atmosphere while a customer refuels. But the vapor that is collected at the dispenser nozzle has to travel somewhere — back down into the underground

Why Underground Piping Matters in Stage III Vapor Recovery Stage III vapor recovery systems capture fuel vapors at the dispenser nozzle and return them to the underground storage tank (UST) through a dedicated vapor return line. The performance of the entire recovery loop depends heavily on the piping network that carries those vapors back to