Pompe double vis

La pompe à double vis Alfa Laval gère à la fois le transfert du produit et le nettoyage en place (NEP) avec flexibilité, robustesse et fiabilité. Elle répond aux normes d'hygiène les plus strictes. Sa faible pulsation et son excellente capacité de traitement des solides réduisent le risque d'endommagement du produit, améliorant ainsi sa qualité. L'entretien est simplifié, permettant une plus grande disponibilité des process.

Twin Screw Pump

Liquides à forte ou faible viscosité – tous parfaitement pompés

  • Plus grande flexibilité des process
  • Entretien facile, plus grande disponibilité des process
  • Conception robuste et fiable, réduction du coût de possession et disponibilité accrue des process
  • Amélioration de la qualité du produit
  • Hygiène et facilité de nettoyage exceptionnelles
Conçue pour la manipulation de liquides sensibles, abrasifs, peu et très visqueux, la pompe Twin Screw à double vis Alfa Laval est particulièrement adaptée aux applications hygiéniques des industries agroalimentaire, des produits laitiers et boissons et des cosmétiques et soins corporels. Son fonctionnement silencieux, pratiquement sans impulsion et en douceur en fait un excellent choix pour la manipulation de produits sensibles.

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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 twin screw pump 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 Twin screw 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.


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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.

Twin screw pump brochure

Fonctionnement

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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 pump 640x360

Product models

The hygienic Twin screw pump comes in twelve 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.

Exploded view of Alfa Laval twin screw pump

Options

  • 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
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360° Service and maintenance videos

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OptiLobe

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

optilobe rotary lobe pump left side 640x360

DuraCirc

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DuraCirc® circumferential piston pump

Catalogue des produits

Le catalogue de produits d'équipement hygiénique d'Alfa Laval « À portée de main » comprend des fiches techniques, des courbes de performance, des liens vers des animations, des brochures et des listes de prix à des fins de commande.

Product Catalogue Thumbnail 640x360

Logique alimentaire

Les équipements hygiéniques Alfa Laval associent hautes performances et manipulation en douceur pour préserver les ingrédients délicats et suivre les tendances de l'industrie alimentaire. L'équipement relève quatre défis clés : fournir des produits alimentaires aux consommateurs à un prix compétitif, tirer le meilleur parti des matières premières, réduire les déchets et les émissions de gaz à effet de serre, et fournir des produits alimentaires sains et hygiéniques.

food logic 640x360
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Portail CAO et fichiers PDF 3D

 

 

Téléchargez les modèles de produits aux formats de fichier CAO ainsi que les fichiers PDF 3D.

 Voir le portail CAO 

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