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.

Multi‑layer co‑extruded HDPE‑EVOH composite pipe is engineered for underground fuel conveyance systems of gas stations, manufactured by integrated multi‑layer co‑extrusion molding process. The structure combines high‑density polyethylene substrate and EVOH barrier layer, forming a compact molecular bond between each material layer without delamination risk during long‑term service. The embedded EVOH barrier layer offers outstanding resistance

Anti‑static HDPE‑EVOH double containment pipe is specially developed for underground fuel pipeline systems of gas stations. It adopts a dual‑layer pipe‑within‑pipe structure, with the inner pipe serving as the primary conveying layer for gasoline, diesel and ethanol‑mixed fuels, and the outer pipe acting as secondary containment barrier. The interlayer cavity is reserved for interstitial leakage