APPLICATION TECHNOLOGY
RotaBolt fasteners used on BP terminal RotaBolt measurement fasteners have been fitted to a heat exchanger on BP’s Teesside gas processing terminal in the UK, as part of the company’s continuous improvement programme.
commented the plant’s asset care engineer. “We had been using ultrasonic measurement of bolt extension to check correct pre-load but the use of RotaBolt measurement has helped us overcome some inconsistencies. The improvements, which included re-machining the sealing faces, are assuring our leak-free start ups.” The joints experience substantial temperature differentials during
T
start-up and can be subject to distortion. During these thermal swings it is essential that the correct tension is being achieved and maintained across the joints to assure integrity. RotaBolt says the technology built-in to each RotaBolt fastener
assures that the correct tension is achieved and maintained throughout the life of the bolted joint. The design of the fastener also has the added benefit that it is very quick and easy to check during maintenance. The RotaCap on the top of the fastener can be ‘instantly’ finger-tip checked, dramatically reducing the amount of time taken to carry out routine maintenance leading to a substantial reduction in costs.
he fasteners were used to assure that the correct design load was being achieved on bolted joints on four of the terminal’s re-boilers. “We have fitted RotaBolts on the bolted joints where the main vessel connects to the channel system,”
Two welding
systems in one gun Heinz Soyer Bolzenschweißtechnik GmbH has recently launched a newly developed stud welding gun which is suitable for two different welding processes - gap and contact welding.
and ergonomically designed compact housing. The patent pending new Soyer system changeover on the gun body (file reference 10 2013 201 463.5) allows switching between gap and contact welding within seconds. The multi-function welding gun is suitable for CD
W ALLBOLTS LTD
threaded studs and pins from M3 - M12 or 2mm - 10mm in diameter. Heinz Soyer explains that the variable technology makes the PS-2KS ideal for different stud welding tasks - whether on problematic surfaces or delicate parts, whether steel, stainless steel, aluminium or brass.
www.soyer.com
ith over 40 years of technical experience Heinz Soyer says its user-friendly PS-2KS is the first welding gun to integrate all elements for gap and contact welding in a particularly elegant
Unit 18 Fortress Close, Brome Industrial Estate, Eye, Suffolk IP23 7HN
Tel: 01379 872910 Fax: 01379 872915
allbolts@btconnect.com
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