The tank is available in sizes of 8,500, 10,000 and 13,000 litres, as well as in versions suitable for vehicle loading or lorry load bearing.

  • No crane required
  • No additional interior coating
  • High stability thanks to modern manufacturing
  • Rotatable tank dome for easy alignment with the connection pipes
  • Suitable for vehicle or lorry load bearing (in conjunction with a telescopic cast iron or lorry load bearing dome shaft)
  • Water-resistant down to the centre of the tank thanks to its extremely robust construction
  • Easy to transport due to low weight and all-round H-profile reinforcement
  • Manufactured from the high-quality material Duralen, which is easily recyclable
  • Resistant to groundwater at 800 mm of backfill thanks to an extremely robust construction extending to the centre of the tank

Scope of supply: 

Carat XL underground tank with Maxi tank dome; telescopic dome shaft (lorry bearing) for standard concrete rings/lorry bearing covers (to be provided by the customer or optionally available)

Advantages

Thought-out in every detail

Low weight
Low weight
Low weight

Tank installation made easy! The significantly lower weight of GRAF products compared to steel or concrete cisterns makes transport and installation easier.

Groundwater stable
Groundwater stable
Groundwater stable

Depending on the model, our underground tanks can be partially or fully installed in groundwater. The maximum immersion depth and the required ground cover must be observed in accordance with the technical data.

360° rotatable tank dome
360° rotatable tank dome
360° rotatable tank dome

Allows easy alignment to the connecting pipes. A tank that turns it`s head for you.

Telescopic/Tiltable
Telescopic/Tiltable
Telescopic/Tiltable

The telescopic dome shafts are height-adjustable and can be tilted by 5 degrees. This makes it easy to adapt to the upper edge of the terrain.

Sealed to the top edge of the ground
Sealed to the top edge of the ground
Sealed to the top edge of the ground

The ingress of seepage water can impair the water quality. Our tank and filter solutions are therefore sealed up to the top edge of the ground.

Ready for connection
Ready for connection
Ready for connection

With GARANTIA tank systems, the connection seals are already pre-drilled and lip seals are pre-assembled. This saves time and therefore costs during installation.

Dome opening with stainless steel profile
Dome opening with stainless steel profile
Dome opening with stainless steel profile

Dome opening with stainless steel profile for high fitting accuracy and mounting safety.

Individual connections possible
Individual connections possible
Individual connections possible

Flexible connections possible according to customer requirements on the tank dome up to DN 300 or on the end face up to DN 250.

Low weight

Tank installation made easy! The significantly lower weight of GRAF products compared to steel or concrete cisterns makes transport and installation easier.

Groundwater stable

Depending on the model, our underground tanks can be partially or fully installed in groundwater. The maximum immersion depth and the required ground cover must be observed in accordance with the technical data.

360° rotatable tank dome

Allows easy alignment to the connecting pipes. A tank that turns it`s head for you.

Telescopic/Tiltable

The telescopic dome shafts are height-adjustable and can be tilted by 5 degrees. This makes it easy to adapt to the upper edge of the terrain.

Sealed to the top edge of the ground

The ingress of seepage water can impair the water quality. Our tank and filter solutions are therefore sealed up to the top edge of the ground.

Ready for connection

With GARANTIA tank systems, the connection seals are already pre-drilled and lip seals are pre-assembled. This saves time and therefore costs during installation.

Dome opening with stainless steel profile

Dome opening with stainless steel profile for high fitting accuracy and mounting safety.

Individual connections possible

Flexible connections possible according to customer requirements on the tank dome up to DN 300 or on the end face up to DN 250.

Sizing

Volume [l]Length/Depth [mm]Width [mm]Height [mm]Weight [kg]order no.add to enquiry
8500350020402700380105103
10000352022402900470105104
13000400024203080620105142

calculated size Request for information

Technical details

Accessibility

Earth covering with loading capacity [mm] 800-1500
max. axle load [t] 8
max. vehicle weight [t] 12

Installation

max. earth covering [mm] (without groundwater, vehicle loading) 1500

Accessory