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HDPE Double Wall Piping

EN 14125, ATEX 137
& EN 13463-1 Approved

No leaks, no permeation

Engineered for all current liquid fuels, KPS’ electrofusion piping is made from high-density polyethylene (HDPE) and includes a permeation layer for extra security. For sensitive areas and fluids like fuel transfer, KPS’ double wall (secondary contained) electrofusion piping system provides an extra layer of protection. All double wall KPS bends and electrofusion fittings have an interstitial space to contain any leakage from the primary pipe and are tested to EN 14125.

Trusted on forecourts globally

Specified and installed by oil companies around the globe since 1996, with expertise in engineering plastics dating back to 1950, KPS is leading the development of plastic piping for sensitive liquids like fuel and chemicals.

Engineered for fast, easy installation

From the start, KPS has focused on 2 key features: making fluid flow safely, and easy installation. Today we’re proud to say that KPS’ electrofusion double wall fittings are the only system on the market to weld both pipe walls simultaneously, with no butt welds needed.

Products

Select from below

200/160 mm 6" Secondary Containment Piping

125/110 mm 4" Secondary Containment Piping

110/90 mm 3" Secondary Containment Piping

75/63 mm 2" Secondary Containment Piping

40/32 mm 1" Secondary Containment Piping

Key benefits:

  • Engineered for fast and easy Installation: reducing cost and build time
  • Flow rates from 80-2,500 litres/minute
  • Compact electrofusion fittings, elbows and tees
  • Conductive (electrostatically safe) or non-conductive
  • Zero permeation EVOH barrier, protecting the environment
  • Corrosion-free
  • Technical support, training and certification (classroom and on site)
  • Approvals: EN 14125, ATEX 137, EN 13463-1 plus many other country or fuel specific standards
  • Leak detection & interstitial monitoring (secondary containment / multi-layer)
  • Lightweight
  • Available in straights or coils
  • Recommended operating pressure up to 6 bar (PN10 class)
  • Temperature rating -20ºC to +50ºC
  • Suitable for below and above ground installations
BP-Aral, Hildesheim, Germany
KPS piping is unreactive to saltwater, removing the risk of corrosion
260 metre (75/63 mm) lines for smaller yachts

Fluid compatibility:

  • Petrol
  • Diesel
  • Biodiesel
  • Ethanol blends*
  • AdBlue
  • Jet-A1
  • Alcohols*
  • Acids*
  • Chemical products*
  • Other*
*For full compatibility details, contact KPS at info@kpspiping.com

Sizes and configurations for every filling station requirement:

  • Below and above ground
  • Remote fill
  • Pressure and suction
  • Ventilation
  • Vapour recovery
  • Conduits

Interactive
Suction & Pressure Systems

VIEW ANIMATION HERE

View our latest projects and piping installations here.

Approvals

EN 14125, ATEX 137, EN 13463-1 plus many other country or fuel specific standards. For a full list of certifications and approvals click here.

Technical support and training

KPS offers technical support from the beginning to the end of each project, including drawings, site surveys, on-site training, and professional certifications.

Local service. Globally

Regionalised manufacturing, and a worldwide network of employees and distributors, ensures hands-on support, local service, and solutions, around the globe. KPS piping is manufactured in Sweden for the EMEA region under the watchful eye of the OPW technical team, ensuring consistent quality.

KPS HDPE Double Wall Piping

Engineered for fast & easy installation

Get your new datasheet today...

DOWNLOAD HERE

Permeation barrier layer

Ethylene Vinylalcohol Copolymer with superior barrier properties towards fuel vapours.

Drawings and system definition

KPS’ double wall pipe systems are available in conductive and non-conductive and include a comprehensive range of compact easy-install electrofusion fittings.

Pipe structure

Mechanical and physical properties

The KPS piping range is tested and approved according to EN 14125. Hydrostatic pressure testing is performed at 23°C and after conditioning at 50°C. At 23°C pipework is pressurised to the lower test pressure for 5 min and the higher test pressure for 1 min. After conditioning at 50°C pipework is pressurised to the lower test pressure for 5 min. Vacuum testing is performed on pipes intended for vacuum suction including vent, vapour recovery and secondary containment type C2. Pipework is also (for positive pressure) subjected to cyclic pressure testing at 21.5°C. Pressure is varied between 1.0 and 4.0 bar for 1.5 × 106 cycles.

Physical and chemical properties

  Value Test Method
Temperature Range
-20 to 50°C
EN 14125
Bend Radius
20 x d
–
Crush Resistance
2000 N
EN 14125
Puncture Resistance
500 N
EN 14125
Impact At -20 °C
> 8.8 J
EN 14125
Fuel Compatibility
Wide range of commercially available fuels*
EN 14125, UL 971
Fuel Permeation
< 0.2 g/m2•d
EN 14125
Static Electricity
Insulative
EN 13463-1,
CENELEC TR50404
Weathering (UV-stability)
> 3.5 GJ/m2
EN ISO 16871,
EN ISO 4892-2
Estimated Working Life
30 years
EN 14125, ISO 9080

Operating and test pressures [EN 14125]

All Measurements
in [bar]		 Operating Pressure Test Vacuum Lower Test Pressure Higher Test Pressure
Primary Delivery Pipework (Positive Pressure)
3.5
–
5.0
30.0
Primary Delivery Pipework (Vacuum Suction)
-0.6
-0.9
5.0
30.0
Vent & Vapour Recovery Pipework
1.0
-0.9
5.0
30.0
Fill Pipework
1.0
–
5.0
30.0
Secondary Containment Type C1
0.5
–
1.0
5.0
Secondary Containment Type C2*
-0.5 to 4.5
-0.6
5.0
10.0
*KPS approval includes secondary containment type C2

Products

Select from below

200/160 mm 6" Secondary Containment Piping

125/110 mm 4" Secondary Containment Piping

110/90 mm 3" Secondary Containment Piping

75/63 mm 2" Secondary Containment Piping

40/32 mm 1" Secondary Containment Piping

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