Efficiency, reliability, and a high level of availability are the most important features that distinguish Bornemann pumps. Read our article about Bornemann twin screw technology and you’ll see why they are part of the ITS portfolio of outstanding pump solutions available to hygienic process facilities in the UK.
Twin-Screw Pumps
Bornemann Pumps are self-priming, double ended positive displacement pumps with external timing gears and bearings. Manufactured in over 80 sizes, their design provides complete axial balancing of the rotating elements and eliminates all metal-to-metal contact within the pump.
They can handle virtually any non-homogeneous fluid, regardless of viscosity, lubricity or abrasiveness e. g. seawater, bitumen, molasses, lime, acid, caustic solution or hydrocarbon.
Principle
While pumping there is no metal-to-metal contact within the pump housing. This allows good pumping performance even with non-lubricating and corrosive and contaminated fluids.
As the pump rotates, the intermeshing of the two screws along with the pump housing form chambers. These chambers fill with the pumped fluid and move it from the suction side of the pump to the higher pressure discharge side of the pump.
The pump is designed to allow for reverse flow by simply changing the shaft direction. The suction becomes the dis-charge and vice versa, all without any modifications to the pump.
How a Bornemann Twin Screw Pump Works
Advantages
• Wide range of applications
• Self-priming
• Pumped capacity proportional to speed
• Compact construction
• Direct drive without speed-reducer possible
• Change of pumping direction – simple
• Pumping elements – simple to replace
• Easy maintenance
• For almost all media and fluids
• High viscosities possible
• Low pulsations
• Low noise level
• Dry running possible
• Constant flow on varying pressures and volumes
• Very good suction performance up to NPSH 1 – 1,5 m/3 – 5 feet
• Engineered 2-piece shaft and screw construction
Scopes of Application
• Up- and Midstream
• Downstream
• Marine
• Offshore
• Industry
• Food and Pharma
Bornemann Hygienic Pump Options
Bornemann SLH Series has particularly been developed for applications in the hygienic industry.
The 2 in 1 principle conveys and cleans in one pump and is therefore ideal for beverage, dairy, confectionery, meats, personal care, cosmetics and pharmaceuticals.
Type SLH-5G
Bornemann SLH Twin Screw Pumps are rotary positive displacement pumps, using two screws to convey the product along the screw axis. The contact free intermeshing screws and the housing form closed chambers, constantly moving product from suction to discharge.
Optimisation
- Built-in exchange with entire SLH-series pumps
- Even more flexibility with adjustable operating conditions while maintaining high Bornemann quality and hygienic standards
- Optimised sealing technology
- Wide inlet design for higher efficiency of optimised flow characteristics
- Hygienic frame construction
- Stable temperature
Click here for more information on Bornemann SLH-5G
Type SLH-4G
The consistent ongoing development of the SLH has been based on the many years of experience working with customers, general market requirements and the demands of relevant directives and certifications. Bornemann SLH twin screw pumps are single-flow and self-priming. Two contact-free intermeshing screws and the pump housing form closed chambers that, according to the direction of rotation, constantly move towards the pressure discharge end of the pump.
Optimisation
- Pressure stability increased by around 25%
- Even more flexibility in terms of the rotating elements – a solution for every application with just 7 different sizes
- Optimised sealing technology
- “Tube design” – the most hygienic and optimum profile/shape – perfectly rounded
- Hygienic frame construction
Click here for more information on Bornemann SLH-4G
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