EVOH Barrier HDPE Double Wall Composite Pipe for Underground Fuel Transfer｜Vohon Petrochemical EVOH barrier HDPE double wall composite pipe is designed for underground fuel transfer systems of filling stations. Produced by multi‑layer co‑extrusion molding technology, the inner pipe is embedded with an EVOH barrier layer to block hydrocarbon permeation and reduce fuel vapor escape. The […]

HDPE-EVOH Double Layer Composite Pipe Underground Fuel Pipeline｜Vohon Petrochemical HDPE-EVOH double layer composite pipe is specially engineered for buried fuel transmission systems of gas stations, manufactured by advanced multi-layer co-extrusion technology. The inner pipe incorporates an EVOH high barrier layer to restrain hydrocarbon permeation, cutting fuel vapor escape and reducing underground fuel loss. The pipe-in-pipe

Anti‑permeation HDPE‑EVOH double containment pipe is purpose‑built for underground fuel piping systems of filling stations. Produced via multi‑layer co‑extrusion process, the inner wall incorporates an EVOH high‑barrier layer to suppress hydrocarbon permeation. The double‑wall containment structure forms a pipe‑in‑pipe safety system. The annular interstitial space between inner product pipe and outer containment pipe can connect

High barrier HDPE‑EVOH double wall pipe is engineered for underground fuel delivery systems at petrol stations. Manufactured by multi‑layer co‑extrusion technology, it embeds EVOH barrier material inside the inner pipe wall to achieve ultra‑low hydrocarbon permeation. The unique double‑wall pipe‑in‑pipe structure provides secondary containment function. The annular gap between inner pipe and outer pipe can

HDPE‑EVOH double‑layer composite pipe is specially developed for buried fuel transmission systems of gas stations, adopting advanced multi‑layer co‑extrusion forming technology. The inner pipe integrates an EVOH barrier layer, delivering outstanding hydrocarbon‑resistant anti‑permeation performance to block fuel vapor permeation effectively. The double‑wall “pipe‑in‑pipe” structure realizes secondary containment, and the interlayer space supports interstitial leak monitoring.