1A Goodsons Mews, Wellington Street, Thame, OX9 3BX
1A Goodsons Mews, Wellington Street, Thame, OX9 3BX
The Alfa Laval Twin Screw Pump combines process duties typically performed through positive displacement with Cleaning-in-Place (CIP) duties often handled by Centrifugal Pumps. This provides a robust and reliable platform that offers greater process flexibility.
This Displacement Pump is designed according to the most stringent hygienic design standards and is built on a robust, reliable platform. It is capable of handling both product transfer and CIP, and its low pulsation characteristics and excellent solids-handling capability reduce the risk of damage, thereby improving end product quality.
Robust Twin Screw Pumps handle large particles with low energy consumption and hygienic design, combining product transfer and CIP capabilities.
The Alfa Laval Twin Screw Pump can manage both process and CIP duties that would normally require two different Pumps. As a result, it provides a robust and reliable platform that offers greater process flexibility.
Two-in-one operation provides easy handling of process media of varying viscosities as well as CIP fluids. This simplifies piping and Pump control, cutting costs and minimising risk of contamination. Superior suction performance with excellent lift capability and low NPSHr provides installation flexibility and increases product recovery.
A stainless steel gearbox, end cover and foot ensure increased life and assist in washdown. The gearbox is designed with the timing gears located between the bearing sets, rather than external to them. This allows the bearings to be positioned to provide maximum support to the shaft assembly, creating a rigid, robust design. The internal gearcase optimises oil circulation to bearings and timing gears with an oil sump design. This improves the lubrication effect on both, minimising the heat generation due to friction within the Pump gearbox.
The Alfa Laval Twin Screw Pump features a clean, external stainless steel finish with profiled elastomers and mechanical seals fully surrounded by the product. Designed for maximum cleanability using FDA-conforming materials, the Pump is both EHEDG- and 3-A compliant.
Minimise maintenance costs and maximise process uptime. Seal replacement with the Pump in place is quick and easy, thanks to a cartridge seal with a truly front-loading, self-setting design. An optional seal service kit provides maintenance flexibility and cuts costs. Easy access to timing gears whilst the Pump is in position simplifies the process of screw retiming without requiring drainage of the gearbox oil or removal of the coupling and motor.
The Alfa Laval Twin Screw Positive Displacement Pump is available in twelve models based on four frame sizes. Each frame size is available with three different screw profiles for varying pressure, flow and solids-handling capabilities.
Pump casing: W. 1.4404 (316L), diffusion hardened
Screws, front cover, seal housing: W. 1.4404 (316L)
Inside surface finish: Mech Ra ≤ 0.8
Gear box: Stainless steel
Base plate: Stainless steel
Coupling guard: Stainless steel
Product wetted elastomers: EPDM
Other elastomers: FPM
Shaft seal: Single flush
Rotary seal face: Silicon Carbide
Stationary seal face: Silicon Carbide
Max. flush pressure, single flush: 0.5 bar
Max. flush pressure, double mechanical: 16 bar (max. 6 bar over product pressure)
Water consumption, single flush & double mechanical: 0.5 l/min.
Flush connections, OS12-36: G 1/4″ or NPT 1/4″
Flush connections, OS42-46: G 1/2″ or NPT 1/2″
Single, Single flush and double mechanical cartridge seals available.
All options are fully front loading interchangeable.
Max. inlet pressure: 16 bar
Max. discharge pressure: 16 bar
Max. process temperature: 100ºC
Max. CIP/SIP temperature: 150ºC
Direct coupled motor, 4, 6 or 8 poles, or gear motor, 4 poles, to IEC metric standard, 50/60 Hz, suitable for frequency conversion, IP55, insulation class F.
The Alfa Laval Twin Screw Pump is a Positive Displacement Pump. As the Pump rotates, the intermeshing of the two contra-rotating screws, along with the Pump casing, forms volumetric chambers. These chambers fill with the pumped fluid and move it axially from the suction side of the Pump to the higher pressure discharge side.
Extend the performance of your Pumps
The OS Twin Screw Pump is designed for a wide range of pumping duties across the process industry.
The technologies we supply improve sustainability through enhanced efficiency, reducing waste and emissions, while increasing yields and end product quality.
InTank has a long history of supplying process equipment to both small local producers and global breweries. Alfa Laval’s solutions bring out the best in your beer and brewery.
