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OFFICIAL TECHNICAL MANUAL · MTEC-03/00

FBCN Technical Manual

Standardized Centrifugal Pump — Per ASME B73.1 and API 610 (12th ed.) — back-pull-out construction

The FBCN series is a standardized centrifugal pump (per ASME B73.1 and API 610 12th ed.) with back-pull-out construction: the rotor+bearing assembly is removed without disconnecting or realigning the piping. Wide flow coverage for industrial processes with clean or turbid liquids.

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15 pages
·
460 KB
·
English, Portuguese, Spanish

FBCN series specifications

Sizes
DN 25 to 300 mm
Flow
Up to 2,400 m³/h
Pressure / Head
Up to 140 m
Temperature
Up to 260°C
Rotation
Up to 3,500 rpm

Industrial applications covered by this manual

ChemicalPetrochemicalPulp and paperSteelMiningFoodTextilePharmaceuticalSanitation

FBCN technical manual contents

  1. 1Quick Selection Table
  2. 2General Pump Characteristics
  3. 3Power Reserve
  4. 4Pressure × Max Temperature Limit
  5. 5Accessories
  6. 6Peripheral Speed
  7. 7Efficiency Reduction
  8. 8Cutaway Drawing
  9. 9Parts List
  10. 10Sealing Chamber Details per Application
  11. 11Auxiliary Connections
  12. 12Dimensional

Construction features

  • Spiral body cast in single piece, supported on its own feet, with wear ring on suction side
  • Radial single-suction impeller with wear ring on pressure side (except models 25-150, 32-125 and 32-125.1)
  • Shaft with protection sleeve in the sealing region
  • Back-pull-out construction — bearing is removed without dismantling piping
  • Flanges: Cast Iron ANSI B16.1 125 Lb FF or 250 Lb FF · Carbon Steel/Ductile ANSI B16.1 250 Lb RF or ANSI B16.5 150 Lb RF · Stainless Steel ANSI B16.5 150 Lb RF
  • Hydrostatic test pressure: per ASME B73.1

Sealing options

  • Gland packing — up to 105°C at 125 lbs (16 bar at 250 lbs)
  • Mechanical seal — up to 90°C, 10 bar
  • Sealing chamber per application (see manual)

Available materials

Cast Iron (peripheral speed up to 40 m/s)
Ductile Iron (up to 60 m/s)
Carbon Steel (up to 60 m/s)
Stainless Steel (up to 80 m/s)

Who is this manual for

Process engineers, maintenance teams and designers who need to minimize downtime (back-pull-out reduces plant downtime hours).

When to use

Read for sizing (flow × head tables, pressure × temperature limits), preventive maintenance planning and selection of sealing chamber appropriate to the fluid.

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Official FB Bombas document — 15 pages PDF · 460 KB

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