COVER STORY ADVERTISEMENT FEATURE


is used to handle a food ingredient, any scoring of the end-covers is machined back to a clean face and the spigot is re- machined to suit. Regardless of whether the rotor blades are worn they will be removed, as it is easier to thoroughly clean blades. Needless to say, new fixings will always be used and the old fixings discarded. With a fixed vane rotor, excessive wear points are fillet welded and re-machined


back to original dimensions. As every refurbished


valve carries a twelve month warranty, all bearings, shaft seals and rotor location components are replaced. If drive chains show signs of stretching, they are also replaced. Finally, every valve – with the exception of those with stainless steel bodies - is repainted and test run. The rules with regards to valve refurbishment change when the valve is ATEX certified. Rather than repairing worn parts, new parts will always be used in order to comply with current


ATEX regulations. With new parts fitted the valve will need to be re-certified. The fact of the matter is that in any


year, DMN technicians will examine a lot of valves. But because of the way that they are constructed, relatively few will need anything more than a visual examination and cleaning. But when a total valve refurbishment is required, customers can be absolutely assured that their valve will be returned in an as-new condition and ready to be reinstalled.


DMN UK Ltd T: 01249 818401 www.dmnwestinghouse.uk


AL with optional box


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the specially designed, rugged BTD ball div can help yo sstreng hen y ur


amic coated or Ni-hard rotary v the specially designed, rugged BTD


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www.dmn estinghouse.uk www.dmnwestinghouse.uk  PROCESS & CONTROL | MAY 2018 11


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WESTINGHOUSE abrasion resistant ccoated or Ni-hardrotary valves and


PLEASE VISIT US ATSTANDP


PLEASE VISIT US AT TA D PC35


T S es and diverter ter DMNUK LMN UK Ltd. T +44 1249 818 400 | dmn@dmnuk.com T +44 1249 818 400 | dmn@dmnuk PC35 BTD Ball Type Diverter ype Diver


When handling abrasivematerials, the use of abrasion reasion resistant rotary and diverter valves lacement or


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