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Performance Materials used Scope of Application Structure Performance parameters
Heavy duty petrochemical process pump

Heavy duty petrochemical process pump

Description:

The BB3 horizontal multistage pump is an axially split, between-bearings centrifugal pump developed for high-head, high-pressure and continuous-duty services. It normally incorporates three or more impeller stages to provide progressive pressure increase for pipeline transfer, water injection and demanding process applications.

The impellers may be arranged back-to-back or symmetrically to balance axial thrust. Double-volute or symmetrical diffuser passages help reduce radial loads and improve rotor stability. A double-suction first-stage impeller can be provided for low-NPSH services to improve suction performance and reduce cavitation risk.

Its horizontally split casing allows inspection of the rotor, impellers, seals and bearings without normally disconnecting the suction and discharge piping. The pump is suitable for refinery, petrochemical, offshore and other critical high-pressure services and can be designed in accordance with API 610 and project-specific requirements.
Heavy duty petrochemical process pump
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Performance
Flow rate: up to 5,000 m³/h
Head: up to 600 m
Design pressure: up to 10 MPa
Operating temperature: -40°C to +450°C
Materials used
  • Corps de pompe : Acier au carbone, acier faiblement allié, acier chrome-molybdène, inox 304/316, inox duplex ou alliage spécial

  • Roues : Acier inoxydable, inox martensitique, inox duplex ou alliage anticorrosion

  • Arbre : Acier allié haute résistance, acier inoxydable ou inox à durcissement structural

  • Bagues d’usure : Acier inoxydable, alliage anti-usure ou matériau traité en surface

  • Chemises d’arbre : Acier inoxydable ou alliage résistant à l’usure et à la corrosion

  • Paliers : Roulements ou paliers lisses, avec lubrification forcée en option

  • Garnitures mécaniques : Simples, doubles ou en tandem, avec plans API 682 disponibles

  • Joints statiques : Graphite, PTFE ou matériaux compatibles avec le fluide

Les matériaux en contact avec le fluide peuvent être adaptés aux exigences NACE, API ou du projet.


Scope of Application
·Oil refining: High-pressure process transfer, boiler feed and circulation services ·Petrochemical plants: Hydrocarbons, chemical feedstocks and high-pressure process liquids ·Oil pipelines: Long-distance transfer and boosting of crude oil and refined products ·Offshore platforms: Water injection, process-water transfer and utility services ·Oilfields: High-pressure water injection and production support systems ·Coal chemical plants: High-pressure grey water and process-water transfer ·Power generation: Boiler feed, condensate boosting and high-pressure circulation ·Desalination: High-pressure feed for reverse-osmosis systems ·Industrial water supply: Long-distance and high-pressure water transfer
Structure
  • Corps à plan de joint axial facilitant l’entretien

  • Rotor entre paliers adapté aux hautes pressions

  • Trois étages ou davantage pour une augmentation progressive de la pression

  • Roues dos à dos ou symétriques pour équilibrer la poussée axiale

  • Volute double ou passages symétriques réduisant les charges radiales

  • Premier étage à double aspiration disponible pour améliorer le NPSH

  • Bagues d’usure remplaçables

  • Équilibrage statique et dynamique des roues et du rotor

  • Brides d’aspiration et de refoulement généralement placées sur le demi-corps inférieur

  • Instrumentation, système de lubrification et surveillance d’état disponibles

  • Entraînement par moteur électrique, turbine à vapeur ou système personnalisé


Performance parameters
ParamètrePlage
Débit10 à 3 000 m³/h
Hauteur manométriqueJusqu’à environ 2 500 m
Pression de calculJusqu’à 30 MPa
Température de service-80 à 200°C
Vitesse maximaleEnviron 5 000 tr/min
Nombre d’étagesTrois ou davantage
ConstructionHorizontale, plan de joint axial, entre paliers
NormeAPI 610 ou spécification du projet
Étanchéité d’arbreGarniture mécanique, plans API 682 disponibles


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