Double Wall Steel Composite Bonded UST Features:
Meets UL58, UL1746, SANS1535 & EN12285.

Steel provides complete compatibility with all blends of ethanol and biodiesel fuels. A high-voltage holiday test of the coating assures that the steel is isolated from external corrosive environments. Interstitial space monitoring forms an integral part of the assembly. Designed in accordance with UL58, for burial up to 1,500mm.


  • Built to national & internationally recognised standards with strict 3rd party quality control inspection programme.
  • Manhole apertures allows for both suction and / or pressure system layout in one comprehensive design.
  • Composite containment adaptor allows for “any brand” chamber installation.
  • Wetted filler drop tube design, limits evaporation through filler line.
  • Elevated suction drop tube design, eliminates contaminant distribution.
  • Interstitial monitoring facilitates “in service” leak detection.

Additional Features:

  • Primary and secondary steel construction provides structural strength, while outer fibreglass coating prevents corrosion.
  • Certified carbon steel primary and secondary construction to EN 10025-2 S355JR.
  • Specification compliance branded on product.
  • High impact resistant and excellent tensile strength fiberglass coating.
  • 12 month warranty on materials and workmanship.

Technical Specifications

Capacity (m3) Internal Diameter (mm) Total Length (mm) approximately
4,5 1808 1912 / 2164
9 1808 3700 / 3712 / 3924
14 1808 5512 / 5834
23 2318 5500 / 5512 / 5834
46 Long 2 318 10912 / 11234
46 Dumpy 2 870 7748

Our certification and accreditation from the South African Bureau of Standards (SABS), establish a class-leading technology and product quality.