FEATURE PUMPS, VALVES & ACTUATORS FULL ‘CONDIMENTS’ TO THE HYGIENIC PUMPS


Bredel CIP pumps from Watson Marlow Fluid Technology Group are proving their value in viscous food industry applications, having successfully replaced pumps that were difficult to clean and maintain at a Russian condiment processing site


W


atson-Marlow Fluid Technology Group (WMFTG) has supplied Bredel


CIP (clean-in-place) pumps to a global brand sauce and condiments manufacturing plant in Russia. The Bredel CIP 50 models have replaced pumps that were difficult to clean and maintain, and are being used to pump products such as cheese sauce, tomato ketchup and mayonnaise.


connectors include DIN, ASA and JIS types. Hygiene and sterility are crucial at the


plant where, depending on the production plan, CIP is often scheduled daily. The process takes place at full velocity using food industry standard cleaning agents such as Tarmo (1.0%) and ET (0.3-0.5%). Bredel CIP 50 pumps have been


installed on two filling lines to transfer cheese sauce, which is heated to 75°C.


‘Hygiene and sterility are crucial at the plant where, depending on the production plan, CIP is often scheduled daily’


Hygiene is paramount in food industry


applications, where any failures can have a negative impact on brand reputation. For this reason, Bredel CIP 50 pumps are available with the option of externally- operated retracting shoes that release the hose so that the line is open and unobstructed for cleaning. Pumps featuring this option are used at the Russian plant with a food-approved hose and food grade lubricant, both from WMFTG, while stainless steel sanitary


Here, the sauce needs to be pumped quickly from the hoppers to the filling line at flow rates of up to 7000l/h. If the sauce cools in the pump hose or in the transfer lines, it will solidify, which would cause huge cleaning issues because hot water and stronger cleaning agents would be needed to break down the starch and fats. Elsewhere on site, Bredel CIP pumps transfer ketchup through 20m-long pipework with 7m delivery. The pumps dose ketchup with a viscosity of 50,000 cP


TWIN SCREW PUMP CAPABLE OF PUMPING LARGE PARTICLES


AxFlow has introduced the new Waukesha Universal TS ‘twin-screw’ rotary positive displacement pump to its portfolio. This Universal TS pump exploits the benefits of Waukesha Alloy 88 non-galling material twin screws to pump various media containing large particulates, thereby lowering damage to the pump and reducing maintenance. Users also benefit from the pump’s high suction capability and wide range of operating speeds which means that only one pump is required to transfer product and undertake CIP. This removes the number of pumps, valves and control instrumentation, thus contributing to reduced costs and simpler, more compact systems.


As a result of the twin screws’ rotating geometry, a


pulse-free flow is created making the pump suitable for many applications such as feeding homogenisers. The meshing screws have identical rear and front profiles giving bi-directional flows which enable easy media transfer between vessels without alteration to the pump set-up. Front loaded access to product side seals makes for easy maintenance and reduced downtime. The Universal TS is available in four models each with three screw pitch options, and delivers flows of up to 4,618l/min and has a pressure range up to 25bar. AxFlow www.axflow.co.uk


The gentle, low-shear capability of the Bredel pumps meant they were suitable for use in the production of cheese sauce and ketchup


(at 30-40°C) from the hoppers to a line that fills plastic single serving sachets for fast food outlets. On the same line, plastic sachets are also filled with mayonnaise (5,000 cP), again for fast food outlets. Aside from ease-of-cleaning, there


were several factors to consider before selecting the Bredel pumps, not least the shear thinning of these thixotropic sauces. Further factors included the avoidance of air entrainment which could lead to the sachets bursting upon filling, and the need for sterility. Sachets are in high demand in the Russian market, where glass bottles are deemed unacceptable. The same is true in Africa, which is a major export market for the plant. Ultimately, the gentle, low-shear


capability of Bredel pumps was put forward by the contractor that supplied the Rossi and Catelli filling system. The recommendation was supported by referencing the use of Bredel pumps at other group plants outside of Russia. “WMFTG has a very strong competitive advantage in the quality and performance parameters of its pumps,” said the customer’s purchasing manager “As a result, we are now standardising on Bredel pumps as the most reliable, efficient and minimal maintenance solution. This will have further site-wide benefits in terms of spares management and operator knowledge.” The customer is now planning to upgrade another site in Russia, where Bredel pump technology will again be deployed.


WMFTG www.wmtfg.com


14 JULY/AUGUST 2017 | PROCESS & CONTROL


/ PROCESS&CONTROL


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