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TECH SPOTLIGHT


The range also includes NS pliers in several types, including combination, diagonal cutting, long nose and slip joint.


German-type stoning hammers, with a two component handle, are available with either fibreglass or hickory handle. These are made in aluminium bronze and meet standard UNE 16590. Ball pein, machinist and sledge hammers are also in the range.


Other striking tools include a die-forged non-sparking wedge, for lifting or separating objects or for holding them in place. An NS wrecking bar is curved at the forked end to provide more leverage.


Grattoirs include a cross cutting chisel for creating grooves and slots, a centre punch and flat, angled, three square, triangular,


long blade and flexible scrapers, all with beech handles.


When working offshore the secure, organised and stable storage of hand tools can be an issue. Bahco offers the ideal solution with its ergonomic Tool Management System which enables engineers to know where to find every tool they need without delay. Bahco’s Configurator software


enables customers to choose the size, style, colour and format of lockable tool trolleys and decide how many drawers they will need for each tool group.


Foam inlays in each drawer are then customised to provide the logical storage and layout of tools and equipment which engineers require.


Colour coding shows when a tool has been removed from its designated storage space, guarding against the risk of foreign object damage.


For more information on non-sparking tools or managed tool storage visit:


www.bahco.com CORROSIVE PROTECTION IN MARINE ENVIRONMENTS


Industrial fans used in marine and offshore applications need to be designed to withstand extremely harsh and corrosive surroundings. Marine environments are classified according to their grade of environmental corrosivity and the corrosivity affects the components used in those environments. ISO 12944- 5:2007, describes the types of paint and paint system commonly used for corrosion protection of steel structures such as industrial fans. It also provides guidance for the selection of paint systems available for different environments and different surface preparation grades, and the durability grade to be expected. The durability of paint systems is classified in terms of low, medium and high. Stainless steel or marine grade finishes such as C3 for urban and industrial atmospheres, C4 for industrial and coastal areas and C5M for marine, offshore and coastal environments.


Moisture, oxygen, temperature, air pollution and marine atmospheres containing chlorides and dirt etc.


affect the rate of atmospheric corrosive state of steel. Corrosion and the degeneration of stainless steel structures such as industrial fans can be limited through correct material selection, organic coating paint, good surface preparation and a regards to the corrosivity category. The main reason to paint a structure is to protect it. Pre-treating is essential as it removes the surface contamination and also protects against contaminants such as salt, oil, grease, dusts and rust. This then extends the corrosion protection.


Motor and fan options available include marine motor classifications, stainless steel and/or ATEx construction, CE, NEMA, UL, CSA motors. Centrifugal and axial fans including roof units manufactured from stainless steel providing a robust, corrosive resistant construction are the recommended choice in marine projects. Many of the industrial fans used within the marine industry use a class F motor and have an IP55 rating against dust and hosed water. In most cases where the finish is C3 and C4, C5M are also available upon request. All motors may not need to be compliant with naval classifications, but can be upon request, including Bureau Verita (BV), Det Norske Veritas (DNV), Lloyd’s Register of Shipping (LR) and many others. Contact Axair for more details.


www.axair-fans.co.uk April 2017 | www.sosmagazine.biz | p45


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