construction projects, time constraints imposed by …

1 The name Braithwaite is synonymous with water storage worldwide. During its ninety year period of storage tank manufacture and installation, Braithwaite has gained an enviable reputation for the quality and reliability of its products. The Hot pressed Steel Sectional Tank is perhaps unique for an industrial product the design although refined over the years, is still essentially the same product that was originally patented in 1901. Its continued use provides ample testimony to the virtues of the Braithwaite Hot pressed Steel Sectional Tank. Throughout the intervening period the tank has given sterling service all around the world.

2 With current examples ranging from the intense heat of Africa and the Middle East, to the extreme cold of Siberia and Antarctica, it continues to be a market leader in many countries providing cost effective engineered solutions to water storage problems. The Braithwaite Hot pressed Steel Tank is easily recognised by the distinctive star pressing in the centre of the panel, which in addition to providing strength and rigidity is also the Company logo and a registered trade mark. QUALITY & COMPLIANCE Braithwaite ensures quality control through the rigorous application of best working practices and current international standards, confirmed by its accreditation with an EN ISO 9001: 2000 Quality System approved and audited by the Loss Prevention Certification Board (LPCB).

3 Braithwaite has been endorsed by many government bodies, blue chip companies, contractors, consulting engineers, finance institutions and aid agencies. Braithwaite Hot pressed Steel Tanks are approved by: WRAS for use with water stored at ambient temperature. BS1564: 1975 Type One. WRAS and LPCB for use on automatic sprinkler installations. SERVICES OFFERED Braithwaite offers a full design, fabrication, protective treatment, shipment & erection service for tanks, towers and ancillary items. Design work is in accordance with BS449 or BS5950, including the incorporation of any specified seismic, wind and snow loading to be accommodated.

4 Qualified engineers can be provided to survey & prepare reports on existing tanks & structures, to undertake feasibility studies, to supervise erection or to fully manage construction sites. Braithwaite can supply their own teams of trained sub-contractors to carry out all forms of erection, modification or refurbishment. The labour force is fully conversant with the working and safety procedures relating to large construction projects, time constraints imposed by plant shutdowns and the requirements of particular industries. Braithwaite offer their services through the UK and world-wide. ENSURE A CLEAN SUPPLY OF 2 HOT pressed STEEL TANKS THE CONCEPT Braithwaite Hot pressed Steel Tanks are formed using mass-produced tank plates and prefabricated cleats and stays bolted together on site, to give an infinite range of sizes and capacities, in accordance with British Standard BS1564: 1975 Type One.

5 Though generally square or rectangular in construction , tanks can be provided in a variety of forms to suit particular site conditions or project requirements. The most common deviations are l or T shaped tanks (plan or elevation) and tanks noteched to avoid obstructions. Through a variety of flanging arrangements Braithwaite tanks can be designed to be supported on concrete rafts or consolidated foundations (where headroom is restricted), on grillages at ground level or in plant rooms (providing access to the underside for inspection and maintenance) or elevated on steel or concrete towers (providing a static head of water).

6 Where site access is severely restricted a completely internally flanged tank can be designed, providing access to all connections from within the tank. The modular concept and bolted construction allows for high speed assembly utilising semiskilled labour. This provides obvious client advantages and cost benefits associated with reduced site duration s when considered against traditional concrete or welded steel construction . Refurbishment is relatively straightforward as individual components can be inspected and replaced as required. Similarly, dimensional and capacity alterations can be accommodated with minimal downtime, indeed if requested at concept stage, tanks can be designed for extension in length without interruption to the water supply.

7 Although best known for the storage of potable water, a wide range of liquids can be stored in Braithwaite tanks and the sectional method is also well suited to the storage of solids in granular or flake form. In addition to the construction of storage tanks, the tank plate has provided our engineers with solutions to a variety of challenges and has been used in the construction of bund walls, blast walls, retaining structures, access shafts, baffles, weirs, pontoons, jetties and even a floating heliport!FEATURES & BENEFITS Modular bolted construction provides: Infinite range of sizes and configurations. Excellent flexibility to adapt as storage requirements change.

8 Ability to be installed in areas with restricted access. Quick and simple assembly using hand tools. Highly economical transportation. Hot pressing of tank plates using matched tools ensures: Close control over quality of product. Consistency of tank plate size. No requirement for welding corners of plates. No distortion as heat treatment dissipates stress. All steel construction provides: Inherent strength and durability of the raw material. High resistance to damage during transit and assembly. Excellent substrate for a wide range of protective finishes. Long term life expectancy. THINK TANK THINK BRAITHWAITE 3 TANK COMPONENTS TANK PLATES The standard tank plates are 1000 or 1200mm square, hot pressed from mild steel plates in one piece and embossed with the distinctive star pressing.

9 Thickness of panel ranges from 4mm to 6mm, determined by tank depth and contents. Non standard plates can be fabricated to provide full versatility for specific requirements. COVERS Covers can be provided for either interior or exterior conditions and are designed to withstand superimposed loadings in accordance with the requirements of BS449 and loading imposed by maintenance personnel. Suitable jointing materials ensure covers are dust or weatherproofed to suit their application. Special covers can be constructed from flanged tank plates to allow for pressure differentials and advice can be provided to ensure suitability for each application.

10 DIVISIONS To enable maintenance of the tank without interruption of the water supply, tanks can be fitted with divisions. Divisions are constructed from standard tank plates and are designed to operate with either compartment empty. It is advisable for all tanks storing 5000 Litres and above to be fitted with a division. FLOAT VALVE CHAMBERS In order to obtain added capacity in covered tanks or to provide a type A air gap for compliance with the WRAS, preventing back siphonage, float valve chambers can be supplied. Theses are fixed to the cover plates and enable the normal allowance for freeboard to be reduced.