Food & Beverage Asia Oct/Nov 2018

46 FOOD & BEVERAGE ASIA OCTOBER / NOVEMBER 2018 P eristaltic pumps are a reliable and vital link in the demanding food and beverage dispensing industry. These pumps can a ̫ ect productivity by reducing maintenance and operational costs and improving reliability and performance. Since the tubing is the only component that comes into contact with the ̭uid, it makes it a vital component of the peristaltic pump. The tubing has to meet today’s hygiene standards and be able to handle food substances with care and accuracy. Many Applications Before addressing the benefits of using peristaltic pumps in food and beverage applications, it is important to delineate the many uses of this technology in the industry. On the processing side, peristaltic pumps can be used to control chemical, liquid ingredient and flavouring dosing. This equipment is also critical to the transfer of highly viscous ingredients such as food slurries, fruit skins and other solids. Over on the dispensing side, peristaltic pumps can be used to transfer fruit juice and ice-cream, among others. Peristaltic Pump Benefits The bene̬ts of peristaltic pumps in food and beverage applications include: food hygiene, cleaning, low shear and reliability. Food hygiene is maintained as the risks of bacterial growth and product clogging are lowered through the use of a peristaltic pump where the ̭uid is completely contained within the hose and tube. The pumping action ensures that the tube is fully swept, and the suction and delivery orientation enables the pump to self-drain, eliminating any risk of dilution or cross contamination. Cleaning is also made easy since the ̭uid’s only contact is with the tube in a peristaltic pump – there is no dismantling and no parts, such as valves, diaphragms, seals etc., to clean. Instead, it is simply a matter of cleaning or replacing the tubing. Without the various parts that tend to leak, clog, corrode or need to be replaced, peristaltic pumps are virtually maintenance- free. Because the peristaltic pump is able to transfer a range of products – from abrasive foodstu ̫ s to highly corrosive chemicals – through a ̭exible tube rather than through the pump head itself, corrosion or abrasive wear of the pumpingmechanism is eliminated. Lastly, the gentle pumping action, or low shear, makes peristaltic pumps ideal for food processing purposes as the pumping action will not damage or degrade a product’s consistency or appearance. Where other pumps might risk damage to the product, the peristaltic pump ensures product quality. Considerations when Choosing Peristaltic Pump Tubing Speci̬c attributes that need to be considered when choosing peristaltic pump tubing, include: sizing and tolerances for consistent flow rates; elasticity for repeatability; chemical resistance, wear resistance and organoleptics for product quality. As peristaltic pumps are designed to squeeze the tubing a speci̬c distance (occlusion) and dispense a food or beverage at a speci̬ed rate, the tubing needs to be designed to have By Mr. Josef Guesman , Applications Engineering Manager, Process Systems, Saint Gobain; Ms. Iuliana Nita , Global Marketing Manager, Food & Beverage, Process Systems, Saint Gobain; Mr. Nathan Greene , Research Engineer, Process Systems, Saint Gobain; Ms. Jackie Fiocca , Marketing Specialist, Process Systems, Saint Gobain; and Ms. Mayte Alvarenga , Marketing Specialist, Process Systems, Saint Gobain Saint Gobain shares tubing considerations for food and beverage peristaltic pump applications. Knowing Pumps Inside and Out PROCESSING AND PACKAGING Peristaltic pump tubing