FEATURE PUMPS, VALVES & ACTUATORS
A manufacturer of dairy- based products has solved potential food contamination issues, caused by positive displacement pumps, by investing in MasoSine Certa 250 pumps from Watson-Marlow Fluid Technology Group
L
ooking to eliminate the risk of contamination from its positive
displacement (PD) pumps, a UK manufacturer of dairy-based ingredients has invested in MasoSine Certa 250 pumps from Watson-Marlow Fluid Technology Group (WMFTG). The company now has a total of 10 Certa pumps in operation, all performing the transfer of soft cultured products like yoghurt, butter, cream and soft cheese. With high demands from its customer
base in terms of productivity and quality, there is little margin for unforeseen downtime or product concerns. With this in mind, two years ago the company’s engineering team highlighted an issue with the potential to cause food contamination. “Our customer had a number of PD
pumps on site, and although they performed well and were food-grade rated, there was always the worry of potential contamination from the wear
PUMPS ELIMINATE CONTAMINATION CONCERNS
Certa’s sinusoidal rotor gently carries product through the pump to reduce shear, an important factor when handling dairy-based products
parts of the pump,” explained Watson- Marlow’s Food Sector Specialist Eddy Smeaton. “As a result, they started looking for a pump that could do the same job, but which could take away the risk.” By chance, WMFTG was already talking
to this customer about a separate dosing pump application, so there was an awareness of the potential of the MasoSine Certa pump. Unlike traditional pumps with rotors that
cut through the fluid, Certa’s sinusoidal rotor gently carries product through the pump to dramatically reduce shear, an important factor when handling dairy- based products. Further advantages delivered by sinusoidal technology include energy efficiency, virtually no pulsation, simplicity, reliability, interchangeable parts and low cost of ownership. Importantly for this company, separation between the wet
ACID-RESISTANT BIOCHOP FOR FISH PROCESSING
Following a series of successful installations, Landia is providing its fourth BioChop unit to Faroe Islands-based P/F Luna. This latest order will give the salmon producer increased biosecurity. Designed with Landia’s chopper pump, the BioChop will
be used for the safe and efficient processing of fish morts into silage at Vestmanna on the island of Streymoy. Chosen for its ease of use, longevity, low operating costs
and effective silage quality, the BioChop destined for Vestmanna is effectively a ‘Plug and Play’ unit, with a long-shaft acid-resistant chopper pump handling the entire process of breaking down and mixing whole salmon. In fact, all components that are in contact with the silage are produced in acid-resistant materials to protect them from the additive (a formic acid mixture). Comprising the chopper pump, PLC and separate acid-dosing pump to ensure proper pH balance in the
tank, the new 5m³ Landia BioChop will process the salmon morts into silage. After transportation to a central storage facility on the Faroe Islands, the silage is then shipped to Norway where (depending on its category) it can be utilised for biogas production or as a starter feed for piglets and chickens – or also used as an ingredient for pet food. Landia delivered its first acid-resistant BioChop 5m³ silage tank
to P/F Luna in 1997 – and has also supplied chopper pumps and mixers for integrated Faroe Islands factory trawlers. The pumps chop the fish by-products, whilst the mixers ensure that processed silage stays homogenous in tanks, to make unloading quick and simple. Landia
www.landiaworld.com
end and dry end ensures no potential for contamination. Offering EHEDG (Type EL Class I and EL
Aseptic Class I) and 3A certification as standard, MasoSine’s Certa is easy to clean for minimal maintenance and downtime. Cleaner than any lobe or circumferential piston pump, a range of seven Certa pumps is available for flow rates to 99,000 l/h and pressures to 15 bar. “We were invited to visit and give a
demonstration of Certa; the customer could see immediately its simple design and lack of wear parts,” said Smeaton. “With a single shaft and single seal, the drive unit is extremely advantageous to their operation.” WMFTG provided the company with a
trial pump so it could assess its suitability for transferring soft cultured products. Duly impressed, a Certa 250 was installed approximately 18 months ago. The customer has since expanded one of
its facilities with the introduction of a new filling machine, for which a Certa 250 was specified. This brings the total number of units in use to 10 Certa 250 pumps, and rising. Each is used for transferring different soft cultured products, either from IBCs to plant or from tanks to plant, or for pushing through pasteurisers. The pumps are also used for blending our ingredients in various viscosities. In terms of transfer distance, the farthest
is 20m with a 4m head. Flow rate tends to be dictated by other parts of the process. “Previous PD pumps had always given
our customer concern about wear parts, but with the MasoSine Certa this problem is essentially eliminated,” concluded Smeaton. “The customer reports that reliability is excellent and issues such as contamination or leaks are a thing of the past. In addition, issues with suction have been eradicated, while efficiency is improved.”
Watson-Marlow Fluid Technology Group
www.wmftg.com
10 APRIL 2019 | PROCESS & CONTROL
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