2. BUWATEC BV BUWATEC delivers complete BUWAtank systems for the
storage of water and other liquids.
BUWAtank systems are the only
ones certified with the German
Prufbescheid.
BUWAtank systems are
characterised by their large
assortment, durable, fast and easy
assembly and a wide range of
applications.

3. BUWATEC BV Prefab tank storage systems

4. BUWA products BUWAtank Corrugated metal tanks
BUWAliner Tank liners and accessories
BUWAcover Anti algae tank covers
BUWAroof Anti algae tank span roof for outdoor
BUWAtop Metal tank roof
AIRtop PVC tank roof (air pressure)
BUWAbase Metal tank base
BUWAhouse Housing concept for slums and disaster areas

5. Selling points Advantages Arguments Longer lifetime (durable)
Duplex protection system (galvanised layer + coating layer (Plastisol or Polyurethane)
High tensile strength
Steel quality S 280 GD (DIN EN 10147), less weight per panel, easy to handle
High quality
Yearly checked by German Ministry of Construction
High strength of BUWAtank
Strength calculation based on ENV 1993 (German standards), on request European DIN EN standard
Strength calculation program available
Clarify tank strength easily for the costumer convinces
Bolt sets with special alloy called “Zinc rolyte”
High corrosion resistance and very fast and easy to install (saving many hours)
Bolt set size M12
Easy to handle by hand, less bolt sets per panel (saving many hours)
Bolt position in corrugation
English manufacturers use wrong position of bolt sets (on top inside the tank), damaging of liner
Seal packing
Provide white corrosion from the beginning.
Tank information
Stickers on each package; panel thickness, type, year of build, tank size.
Installation instructions
Installation drawing for all products without text, clarify in depended of language
Technical information of all products available
Supporting sales- and marketing managers to be successful in tank business
Innovation
Frequently design of new efficient products, practical solutions and logistic improvements
Buwatec, supplier of total storage systems
Optimize storage systems by technical and practical solutions, integration of knowledge, production facilities and experience for innovation

6. BUWAtank applications

7. Galvanising process Uncoil unit Accumulator Oven Zinc dipped Cooling
Coil up unit

8. Tank package All panel ends sealed with foil
Each tank has a packing list and installation instructions
Each panel has a sticker mentioning the panel thickness
Last panel has a sticker with tank information

9. Panel information *** three bolt holes
Sizes standard x 82 cm or x 82 cm
Panel thickness / weight ,8 mm ,3 kg ,0 mm ,9 kg ,2 mm ,3 kg ,4 mm ,6 kg ,6 mm ,0 kg ,8 mm ,4 kg ,0 mm ,8 kg ***
*** three bolt holes

10. BUWAtank base Ground needs to have high stability
Excavated tank needs a minimum depth of 0,5 meter
Sand layer minimum of 10 cm
Ring of concrete slabs 30/30 or 60/40
Before installation: take care of the lining material inside the tank

11. Advantages of duplex system with Plastisol 200 coating
Manufactured in steelwork under certificates and European standards
On both sides of the panels
Layer thickness Plastisol 200 µm
Excellent results European DIN test
Long duration (25 – 30 year)
Less installation costs
Good looking and professional performance

12. BUWAliner types PVC Liner
normal and drinking water – KIWA certificate – wall thickness 0,5 mm
drain and wastewater - good chemical properties – wall thickness 0,5 mm
PVCPLUS Liner
normal and drinking water – higher UV properties – wall thickness 0,5 mm
manure storage – wall thickness 1,0 mm
EX Liner
drain and waste water – high UV and good chemical properties - wall thickness 0,5 mm

13. Installation BUWAtank systems
Fast and easy
With selected tools more convenience

14. Bolt sets with special alloy called “Zincrolyte”
High quality zinc - cobalt alloy
Layer thickness 15 µm, still flat skin
High corrosion resistance.
Better fixing, less installation costs installation
High ductility (mechanical strength)
Recognized by special colour

15. Installation instructions for BUWAtank
Leave space around for tank inspections
Install the panels on the base system
Upper ring covers lowest ring on the outside
Do not install the panel rings in one vertical line
Complete tank is installed by hand
After finishing, all bolt sets need to be fixed by force of min 20 Nm

16. Installation of the BUWAliner
Take away all sharp elements
Equalise the sand bottom or clean the concrete floor
Install the bottom insulation blanket (500 gr/m2) if concrete floor has been used
Install the wall insulation blanket (300 gr/m2) and fix it with plastic strips and tie–raps
Install the liner by using clamps
Tighten the liner through the ratchet buckles

17. Installing conical outlets
Pull the outlet on the pipe and cut the material above the pipe
Push the outlet down
Use tape 1 for first tightening
Use tape 2 for final tightening

18. Assembly PP anti algae spancover
Use temporary ropes as carries
above the tank.
Pull the span cover over the tank
Divide the span roof regular at
the top of the tank
Use the rope for fastening the
cover
Remove the temporary ropes

19. Assembly PP anti algae floating cover
Pre fabricate different floating frames,
assembled from PVC pipes and fittings Ø 63 mm
Place frames at the bottom of the liner
Fasten the floating cover at the PVC
ring with a rope
Install vertical PVC pipes to injust the
cover position with PVC pipes Ø 32mm
Take care of good solutions for inlet
and outlet for water

20. Assembly PE anti algae floating cover
Pre fabricate a ring from PVC pipes
and couplings, Ø 32 mm
Put ring at the bottom of the tank liner
Fasten the floating cover at the PVC
ring with PVC clamps
Install vertical PVC pipes to injust the
cover position with PVC pipes, Ø 32 mm
Take care of good solutions for inlet
and outlet for water

21. BUWAtop metal tank roof
Strong
Durable
Maintenance free
Easy to install
New uses for existing tanks
Deliverable up to 10,96 meter
Variety of accessories such as inspection doors, ladders and outlets

22. BUWAtop metal tank roof

23. BUWAroof anti algae span roof
Span roof for outdoor application
Against algae growth and pollution of water
Available up to Ø 22,76 meter
Short assembly time
Less maintenance
Overflow system integrated into the column
System developed for sand bed, concrete floors and existing tanks

24. BUWAroof anti algae span roof

25. A perfect product from The Netherlands
BUWAtank
A perfect product from The Netherlands