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.

BUWATEC BV Prefab tank storage systems

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

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

BUWAtank applications

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

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

Panel information *** three bolt holes Sizes standard 305 x 82 cm or 293 x 82 cm Panel thickness / weight 0,8 mm 17,3 kg 1,0 mm 21,9 kg 1,2 mm 26,3 kg 1,4 mm 30,6 kg 1,6 mm 35,0 kg 1,8 mm 39,4 kg 2,0 mm 43,8 kg *** *** three bolt holes

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

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

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

Installation BUWAtank systems Fast and easy With selected tools more convenience

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

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

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

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

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

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

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

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

BUWAtop metal tank roof

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

BUWAroof anti algae span roof

A perfect product from The Netherlands BUWAtank A perfect product from The Netherlands