Comparisons

Technical comparisonsfor specification decisions

Direct comparisons between FB series and frequent decisions (FBE vs FBEI, FBCN vs FBOT, domestic vs imported) plus a quick selection guide by fluid — to speed up the right choice.

Choose the comparison that answers your question

Each comparison delivers direct answer (TL;DR), side-by-side table, when to use each option and FAQs based on the technical manuals.

Series vs series

FBE vs FBEI — external or internal gear?

Two positive-displacement families from FB Bombas. The choice depends on viscosity, tolerable pulsation and installation geometry.

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Series vs series

FBCN vs FBOT — standardized centrifugal or thermal oil?

Both share the centrifugal principle and back-pull-out construction. The decision point is temperature: up to 260°C FBCN handles it; above 260°C — up to 350°C — FBOT is the path.

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Sourcing decision

Domestic vs imported manufacturing

When the math moves from purchase price to TCO — spare parts, lead time, FX risk and technical support — the balance shifts. These are the variables an industrial buyer should weigh.

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Decision guide

Which FB pump to use — decision by fluid and condition

Four families, four decisions. Start with fluid, cross through temperature and end on flow. Each answer links directly to the matching series.

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See full comparison table of all FB series