Twin Screw

„Alfa Laval“ dvigubo sraigto siurblys, sukurtas proceso lankstumui užtikrinti, yra sumontuotas ant tvirtos, patikimos platformos, atitinkančios griežtus higienos standartus. Jis gali dirbti tiek su produktų, tiek su plovimo skysčiais (CIP). Jo mažos pulsacijos charakteristikos ir puiki kietųjų medžiagų transportavimo galimybė sumažina produkto sugadinimo riziką ir taip pagerina gaminio kokybę. Techninė priežiūra yra supaprastinta, kas leidžia sutrumpinti aptarnavimo ir prailginti gamybinių proc

Tiršti ir mažiau klampūs skysčiai - visi puikiai ir patikimai transportuojami

  • Didesnis proceso lankstumas
  • Paprastas aptarnavimas - daugiau laiko gamybos procesui
  • Tvirtas ir patikimas dizainas sumažina investicines išlaidas ir leidžia daugiau laiko skirti gamybos procesui
  • Geresnė produkto kokybė
  • Išskirtinai higieniškas ir lengvai valomas

„Alfa Laval“ dvigubo sraigto siurblys, skirtas naudoti jautriems, abrazyviniams ir didelio klampumo skysčiams, idealiai tinka naudoti pieno, maisto, gėrimų ir asmens priežiūros pramonėje. Tylus, ypatingai mažos pulsacijos, sklandus ir švelnus darbas leidžia siurbliui puikiai transportuoti jautrius gaminius.


Twin Screw Pump technology

The Alfa Laval Twin Screw Pump combines process duties typically handled by positive displacement with CIP duties typically handled by centrifugal pumps. This provides a robust and reliable platform that offers greater process flexibility.

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 minimizing contamination risks.

Superior suction performance with excellent lift capability and low NPSHr provides installation flexibility and increases product recovery.

Service and reliability

Quick, easy seal replacement with the pump in place is made possible, thanks to a cartridge seal with a truly front-loading, self-setting design. This maximizes process uptime and minimizes maintenance costs. An optional seal service kit program adds maintenance flexibility and cuts operating costs.

A robust, all stainless steel gearbox with timing gears located between bearings, provides an optimized bearing span. Balanced loading of the shaft assembly reduces vibration and noise, increasing component life and reliability.

The oil chamber design enhances bearing and gear lubrication, increasing bearing life and minimizing gearbox running temperature.

Easy access to timing gears, whilst the pump is in position, simplifies the process of screw retiming; there is no need to drain gearbox oil or to remove the coupling and motor.

Operational safety

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 certified.

The combination of optimized gearbox design and excellent hydraulic performance provides for quiet pump operation, minimizing noise emissions. Running temperature is also minimized, thereby increasing workplace safety.

An optional ATEX version enables use in hazardous zones.


Quick, easy maintenance

Minimize maintenance costs and maximize 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.

Kaip tai veikia


Operating principle

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 housing, form 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 of the pump.

Twin Screw Pomp 640X360

Product models

Twelve pumps sizes – OS12, OS14, OS16, OS22, OS24, OS26, OS32, OS34, OS36, OS42, OS44 and OS46 – handling flow rates ranging from 0.1 to 134.3 m3/h, pressures of up to 16 bar, and solid sizes up to 43 mm.


  • Single mechanical shaft seal
  • Single flushed mechanical shaft seal
  • Double mechanical shaft seal
  • Seal faces in silicon carbide/silicon carbide or silicon carbide/carbon
  • Product wetted elastomers in EPDM, FPM or FFPM
  • Diffusion hardened screws
  • Heating jacket
  • Rectangular inlet
  • Hydrostatic testing with certificate
  • Reversible flow
  • Bottom inlet or outlet
  • Wide range of port specifications
  • Direct or geared motor
  • ATEX version
  • Multiple MEPS

Get greater process flexibility from your pump

Discover how versatile and reliable the easy-to-service Alfa Laval Twin Screw Pump is. Whether your process fluids are sensitive, contain solids, or have a high or low viscosity, our twin screw solution is up to the task. The Alfa Laval Twin Screw Pump. Delicately Robust.

You might also be interested in…


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Alfa Laval OptiLobe rotary lobe pumps are cost-effective alternatives for general applications requiring gentle product treatment and easy serviceability.


The SCPP is ideally suited for transporting very low viscosity products at higher discharge pressures for food, beverage and other hygienic applications.

Product catalogue

Alfa Laval's hygienic equipment product catalogue "Close at hand" includes product leaflets, performance curves, links to animations, brochures and price lists for ordering purposes.

Food Logic

Alfa Laval's hygienic equipment combines high performance with gentle handling to preserve sensitive ingredients. Keeping up with the food industry trends and addressing four key challenges; supplying food products to consumers at a competitive price, getting the most from raw materials, reducing waste and emissions, and delivering safe and hygienic food products.

Technical articles

CAD portal

Download the product models in Neutral or Native CAD file formats. It is also possible to download 3D PDF files.

 View CAD portal