Fibrelite Composite Manhole and Trench Covers

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MW & ATG Sumps

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Cover sizes relate to clear opening of frame.

The perfect watertight solution. Fibrelite’s vacuum testable sumps are trusted on forecourts around the globe. Ideal for monitoring wells, grounding points and tank risers.

Minimal Maintenance, Maximum Protection

Fibrelite’s GRP containment systems provide durable, sealed, watertight protection for pipework and cable transition chambers, underground pumps and other electrical equipment while creating the maximum possible space for installers to work. Systems comprise of a solid base chamber, frame and a flat sealed composite manhole cover, providing a truly sealed system.

Manufactured from corrosion-resistant fibreglass material, our fully conductive sumps are engineered to withstand harsh environmental conditions including high ground water pressure after installation for the lifetime of the site.

Created using the latest in GRP technology, our enclosures are one-piece moulded with a consistent wall thickness and smooth finish for easy handling during installation.

Why use GRP Sumps and Covers?

GRP (glass reinforced plastic) is very strong, non-corrosive and requires minimal maintenance during its working life. Sumps are guaranteed not to warp, bend or break after installation. A uniform moulded exterior allows for easy installation of fittings.

Containment systems can be manufactured to suit your application, whether you require resistance to specific chemicals or a conductive or non-conductive surface. All enclosures are vacuum tested in one of our factories for tightness, ensuring against water ingress.

Our covers are designed with a watertight seal and are flush with grade level to prevent trip and fall injuries. Our ergonomically designed lifting handle provides safe removal and replacement of covers without risk of injury to the back and fingers.

Our MW and ATG sump systems will provide maximum protection for your critical systems while allowing easy access for maintenance and inspection for the lifetime of the site.

Benefits at a Glance

  • Watertight – structure will not deform under water pressure
  • Anti-static surfaces available
  • Will resist corrosion
  • Vacuum testable during and post installation
  • Available for both new and retro-fit applications
  • Guaranteed uniform wall thickness
  • Compatible with biofuels
  • Can be buried up to 3m (10′) feet deep
  • One-piece moulded fibreglass enclosures
  • Compatible with most chemicals
  • Non-conductive and conductive options
  • Withstands high groundwater pressure
  • Withstands extreme temperatures (-50°C/-58°F to 50°C/120°F)
  • Smooth finish for easy handling

300mm (12″) Round Solid Base Sumps – S0

ATG Grounding

S0-1120-ATG

300mm (12″) round solid base sump for ATG Grounding pipework.

PDF Specs:

PDF Specs:

Manual Dip

S0-1120-MD

300mm (12″) round solid base sump for Manual Dip pipework.

PDF Specs:

PDF Specs:

Monitoring Well

S0-1120-MW

300mm (12″) round solid base sump for Monitoring Well pipework.

PDF Specs:

PDF Specs:

450mm (18″) Round Solid Base Sumps – S49-1180

Round Solid Base Sump

S49-1180

450mm (18″) round solid base sump. Designed to contain two tank risers & two conduits. Entry kits to be ordered separately.

PDF Specs:

PDF Specs:

The Only Truly Watertight

Sump Systems

Supplying to 80 countries