Double Wall Composite Fuel Pipe

The Gold Standard
in Fuel Transmission.

Unrivaled safety, durability, and installation efficiency with our advanced multi-layer double-wall composite piping systems. Engineered for a future-proof fuel infrastructure.

Zero Permeation
30+ Years Service Life
90% Faster Installation

The Science of Multi-Layer Safety

Molecularly bonded layers engineered to provide an impenetrable barrier and lifetime structural stability.

Detailed 4-layer cross-section of double wall fuel pipe

1 PE-RT Internal Core

High-performance polyethylene with enhanced temperature resistance, ensuring smooth fluid dynamics and pressure stability.

2 EVOH Barrier Shield

The core intelligence of the pipe. An ultra-thin Ethylene Vinyl Alcohol layer that provides zero-permeation of hydrocarbons.

3 Molecular Adhesive Layer

Specially formulated tie-layers that create an inseparable bond between the barrier and the structural polymers.

4 Anti-Static Outer Skin

A reinforced external layer integrated with carbon-black conductive technology to safely dissipate static electricity (ATEX compliant).

90% Faster Installation

Redefining petrol station construction with high-flexibility coils and automated fusion technology.

🌀

Continuous Coils

Delivered in long continuous coils (up to 100m+), eliminating 90% of joints and potential leak points compared to traditional rigid pipes.

Smart Fusion

Automated electro-fusion welding creates a homogenous molecular bond in minutes, ensuring a lifetime of zero-leakage performance.

🚜

Trench Efficiency

The flexible radius allows for direct burial without the need for complex elbows, drastically reducing trench width and excavation costs.

-90% Joint Connections
2 Weeks Time Saved per Site
30 Years Zero Maintenance

Technical Specifications

Model Size Inner Pipe (ID/OD) Outer Pipe (ID/OD) Pressure Rating Min. Bend Radius
CP-DW-32/40 28 / 32 mm 34 / 40 mm PN 16 Bar 0.8 m
CP-DW-50/63 44 / 50 mm 54 / 63 mm PN 16 Bar 1.2 m
CP-DW-63/75 56 / 63 mm 66 / 75 mm PN 10 Bar 1.5 m
CP-DW-90/110 80 / 90 mm 100 / 110 mm PN 10 Bar 2.0 m

Burst PressureSafety factor of 4:1 against nominal operating pressure.

Permeation RateMeets UL 971 zero-leakage standard (< 0.01 g/m²/day).

Fluid CompatibilityCompatible with E85, Biodiesel, and Methanol blends.

Certified Global Standards

Rigorous laboratory testing and field verification by leading international safety authorities.

Underwriters Laboratories
UL 971 Listed

Standard for Nonmetallic Underground Piping for Flammable Liquids, ensuring zero-leakage safety.

European Standard
EN 14125:2013

Thermoplastic piping systems for underground installations at petrol filling stations.

Explosive Atmospheres
ATEX Compliant

Certified for use in hazardous zones, providing essential static electricity dissipation technology.

Quality Management
ISO 9001:2026

Total quality assurance across the entire manufacturing and supply chain process.

ASTM D2996 Filament Specifications
IP 15/05 Energy Institute
ASME B31.3 Process Piping
CE MARK EU Directives

Application Scenarios

Retail Infrastructure

High-Traffic Service Stations

In busy urban hubs, downtime is not an option. Our composite pipes provide seamless flow with zero maintenance, allowing for 24/7 refueling operations without the risk of underground corrosion.

Zero Downtime High Flow Rate Anti-Static Safety
Gas station fuel piping installation
Extreme Conditions

Arctic & Cold Climate Projects

Standard pipes often become brittle in sub-zero temperatures. Our PE-RT based composite system remains flexible and pressure-resistant down to -40°C, ensuring integrity in frozen soils.

-40°C Certified Fracture Resistant Thermal Stability
Piping in cold weather environment
Marine & Industrial

Coastal Terminals & Marinas

Saltwater and high humidity accelerate the rust in steel pipes. Our non-metallic composite structure is 100% rust-proof, making it ideal for seaside fueling and harsh industrial chemical transfer.

100% Rust Proof Saline Resistance Chemical Inert
Marine fuel piping system

Expert Insights & Maintenance

How is a leak detected in a double-wall composite system?
Our system utilizes the interstitial space between the inner and outer pipes. By connecting this space to a vacuum or pressure-based leak detector at the control cabinet, any breach in the primary or secondary wall triggers an immediate alarm before fuel can enter the environment.
Is the pipe compatible with high-ethanol (E85) or Methanol fuels?
Absolutely. The internal EVOH barrier layer is chemically inert and specifically engineered to resist the corrosive nature of alcohol-based fuels. Unlike traditional plastics that may swell or degrade, our composite structure maintains its integrity with all modern bio-fuel blends.
What special tools are required for electro-fusion welding?
Installation requires a standard electro-fusion welding machine with barcode scanning capabilities. The machine automatically adjusts the voltage and fusion time based on the fitting's specific requirements, ensuring a foolproof molecular bond every time.
How does the 30-year warranty handle soil movement?
One of the greatest advantages of composite piping is its inherent flexibility. Unlike rigid steel pipes that can crack under soil settlement or seismic activity, our pipes absorb ground movement, significantly reducing the risk of structural failure over decades of service.
🔧

Maintenance Pro-Tip

We recommend a semi-annual inspection of the sump entry boots and a quick check of the leak detection console. Since the pipe itself is non-corrosive, the primary focus is ensuring the connection points remain watertight and free of external debris.

Scroll to Top
Get in touch with us
Leave a message
Contact Form