Product Range

Composite Pipes
For Underground Fuel Systems

Underground composite fuel piping — single-layer and double-wall, engineered for leak-proof, long-life service at service stations.

Double-Wall

Double-Wall Composite Pipe

Our double-wall pipe is the premium choice for underground fuel lines where leak protection matters most. The inner wall is lined with EVOH resin for a dense permeation barrier; the annular space between the two walls allows continuous leak monitoring through built-in test fittings.

• EVOH resin inner lining — prevents fuel permeation into the soil
• Antistatic layer — surface resistance < 10⁶ Ω for safe fuel flow
• Built-in leak monitoring space — testable between walls
• Rated operating pressure 1 MPa — temperature range -40°C to 50°C
• Imported HDPE raw material — consistent, dependable quality
• Electrofusion welded joints — fast, reliable installation

Model	Inner Diameter	Available Lengths
AY-01-65/54	54 mm	50 / 30 / 20 m
AY-01-75/63	63 mm	100 / 75 / 50 / 30 / 20 / 6 / 1 m
AY-01-125/110	110 mm	6 m

Suitable for self-priming and pressure-type systems.

📄 View Manual Online

Single-Layer

Single-Layer Composite Pipe

A cost-effective solution for standard underground fuel piping. Same imported HDPE base material and electrofusion jointing as the double-wall range, with a simpler single-wall construction for projects where a monitoring annulus is not required.

• Imported HDPE raw material — strong and corrosion-resistant
• Electrofusion welded joints — no open flame on site
• Fast installation — suited to complex site conditions
• Full fittings compatibility — couplings, elbows, tees, reducers

Model	Diameter	Available Lengths
AY-01-63	63 mm	50 / 30 / 20 / 6 m
AY-01-90	90 mm	6 m
AY-01-110	110 mm	6 m

Coil or fixed-length supply available.