BB Pumps

BB Pumps

BB 5

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Double-casing radially split multistage between-bearings pumps (barrel pumps) are referred to as BB 5 type pumps.

BB 4

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Single-casing radially split multistage between-bearings pumps are referred to as BB 4 type pumps. These pumps are also called ring-section pumps, segmental-ring pumps or tie-rod pumps.

These pumps have a potential leakage path between each segment. (This type does not meet all the requirements of this International Standard)

BB 3

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Axially split multistage between-bearings pumps are referred to as BB 3 type pumps.

BB 2

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Radially split 1 and 2 stage between-bearings pumps shall be designated pump type BB 2.

BB 1

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Axially split 1 and 2 stage between-bearings pumps shall be designated pump type BB 1.

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