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PUMPING OPERATIONS GALVANISED AT AHC BENELUX USING WATSON-MARLOW TECHNOLOGY

AHC Benelux, a specialist in the provision of surface treatment technologies for engineering applications, has installed a Series 521F/RC close-coupled peristaltic pump from Watson-Marlow Pumps Group to help process aggressive wastewater fluids produced by various plating and galvanising processes.

AHC Benelux is part of Aalberts Industries (AI). Within AI this progressive company’s strengths in the fields of heat and surface treatment have been combined. Employing around 90 people at two sites in the Netherlands (Eindhoven and Venlo), AHC has emerged as a leading European supplier of functional surface and heat treatment processes.

Eindhoven alene har otte fleksible produktionslinjer, der kører 24 timer om dagen, med processer som elektroplating sølv, guld, kobber og tin, elektro-mindre nikkel og synergetisk belægning, der tager centret. AHC i Venlo har store, fuldt automatiserede linjer og fokuserer primært på teknisk og hård anodisering, synergetiske belægninger, elektro-mindre nikkel på stål samt specifikke behandlinger som chromsyreanodisering, kromatisering og lakering. AHCs kunder kommer fra en bred vifte af sektorer: alt fra bilindustrien, elektronik og luftfart til lægemidler og mad og drikkevarer.

"Kørsel af disse kontinuerlige belægningsoperationer producerer spildevand, som skal behandles før bortskaffelse i overensstemmelse med miljøbestemmelser," forklarer Luc Heldens, Supervisor Chemicals og R & M på AHC Benelux. "Begge steder er certificeret til ISO 14001, og vi er stolte af vores" grønne "legitimationsoplysninger. For at forberede spildevand til bortskaffelse anvendes både saltsyre og kaustisk soda (natriumhydroxid NaOH) for at sikre, at pH opretholdes på regulatoriske niveauer. "

Heldens har over 15 års erfaring med at styre og optimere kemiske og R & M processer. På AHC omfatter hans øvrige ansvar også indkøbskemikalier, fejlfinding og miljøkoordinering.

Originally, an air-operated diaphragm pump (AOD) was considered for the task, but as wastewater from production contains around 33% acid chloride, solids in the acid would destroy the pump’s membrane. The AOD would also be unable to ensure accurate dosing of both hydrochloric acid and caustic soda – and this would cause unwanted fluccuations in the pH levels.

The company initially worked with a competitor supplier of peristaltic pumps but switched to Watson-Marlow because of long delivery times. The first Watson-Marlow baseplate pump was installed many years ago. Today, having reached the end of its natural life after many years’ reliable service, AHC had no hesitation in returning to Watson-Marlow to order another, this time in the form of a Series 521F/REC close coupled pump, specifically designed for demanding industrial applications.

Featuring high performance engineered plastics and a stainless steel pumphead, easy set-up and maintenance are critical features of this innovative peristaltic pump, which is particularly suited to aggressive fluids. Its high resistance to chemical attack makes it rugged enough for the harshest environments, delivering cost-effective, precise pumping and a long service life.

Ved peristaltisk teknologi er det kun rørets eller rørets rør, der berører væsken, hvilket eliminerer risikoen for, at pumpen forurener væsken, eller at væsken forurener pumpen. Væsker trækkes ind i røret, fanget mellem to ruller og udstødt - fuldstændig lukning af røret giver pumpen sin positive forskydning, forhindring af tilbagesendelse og eliminering af behovet for kontrolventiler.

“We installed the 521F/REC pump fitted with Marprene thermoplastic tubing elements in February 2010 and it has since performed extremely well,” says Mr Heldens. “It’s pumping hydrochloric acid for about an hour a day – and caustic for around 15 hours a day. The pump is linked integrally to our pH controller and I have to say we’ve had no issues whatsoever with reliability, it simply runs as required without any need for intervention, it ensures a high level of chemical resistance, is easy to operate and needs very little maintenance. Another significant advantage of using tube elements is the longer lifetime of the tubing and the ease with which we can replace it.”

Watson-Marlow Fluid Technology Group

Watson-Marlow Fluid Technology Group (WMFTG) er verdens førende inden for niche peristaltiske pumper og tilhørende væskebane teknologier til fødevare-, farmaceutiske, kemiske og miljømæssige industrier

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