Flat-bottom tanks and drip trays made of
PE-HD with DIBt approval
Flat-bottom tanks and collecting devices made of PE-HD with coiled cylindrical shell (coiled pipe) and building approval Z-40.21-121. All plastic tanks are planned, manufactured and equipped according to your individual specifications.
formoplast produces flat-bottom tanks with collecting devices from 1,000 to 200,000 litres usable capacity, diameters from 1,000 to 4,000 mm and heights up to 7,000 mm. For ease of operation and monitoring, we can equip the flat-bottom containers with a walk-on work platform with railings and access ladder on request.
In order to keep the temperatures in the container at a certain level, the formoplast containers are optionally equipped with an electric surface heater or a safety angled bath heater. To save energy, the flat-bottom containers are insulated with PUR foam. Storage containers and other products for your application requirements.

Which fabrics can be filled?
All media can be stored in our PE100 containers in accordance with the DIBt media list 40-1.1.
Containers may also be used for the storage of other liquids if an expert opinion from an expert to be appointed by the DIBt proves that storage is possible.
What is the advantage of double-walled tanks?
Double-walled tanks with a vacuum safety contour do not require a separate drip tray.
Furthermore, VSK containers are approved by the DIBt for installation in areas at risk from earthquakes.
The environmentally safe plastic tank for your water-polluting media
The storage, filling and handling of water-polluting liquids is subject to strict legal regulations. The same applies to systems used for manufacturing, treatment and utilisation.
With a product from formoplast, you are guaranteed to fulfil the legal requirements.
Additional equipment for tanks with drip tray


- High safety and decisive advantages thanks to PE-HD technology
- Stress-free production of the PE-HD/PP cylinder using the extrusion process without weld seams in the cylindrical area
- Problem-free storage of, for example, 98% sulphuric acid (H2SO4), nitric acid (HNO3), sodium hypochlorite (NaOCl), acetic acid (CH3COOH), hydrochloric acid (HCl) or other aggressive acids
- Problem-free storage of caustic soda, potassium hydroxide solution or other alkaline solutions

Our chemical tanks fulfil all legal requirements:
- Approved under building law
- Approved under trade law
- Approved under water law
- Acceptance classifications
- Quality-monitored by KIWA
formoplast tanks made of PE-HD have been tested by the Institut für Bautechnik in Berlin.
Authorisation number: Z-40.21-121
formoplast tanks made of PE-HD are suitable for outdoor and indoor installation. They are also approved for use in earthquake-prone areas. formoplast is authorised as a specialist company in accordance with the Water Resources Act for the manufacture, installation, assembly and repair of systems for the storage, filling and handling of water-polluting substances.
3 PE-HD tanks with collecting tray for ferric chloride
Collecting tray diameter 3,600 mm
Height: 4,500 mm
Volume: 35 m3
Medium FeCl3
PE-HD tank with drip tray with heating and insulation
Collecting tray diameter 3,000 mm
Height: 1,400 mm
Volume: 6 m3
Medium FeCl3
2 PE-HD tanks with drip tray for nitric acid and caustic soda
Collecting tray diameter 3,400 mm
Height: 5,000 mm
Volume: 30 m3
Medium HNO3 <55%, NaOH 50%