A multistage between bearing pumps with Axially Split cashing design is designated as an API BB3 Type pump. This pump used flexible coupling to connect the drive.

BB3 Vs BB5 - Free download as Word Doc (.doc / .docx), PDF File (.pdf), Text File (.txt) or read online for free. This document discusses multistage pump design considerations for light …

For Boiler Feed in refinery and SAGD applications selection usually based on discharge pressure, BB3 below 200 bar, BB5 above Barrel’s used when: - Rated discharge pressure greater than …

here are a number of basic configurations or layouts for large multi-stage centrifugal pumps. According to the designation system defined in the American Petroleum Institute (API) …

API 610 divides centrifugal pumps into three groups: Overhung (OH), Between Bearings (BB) and Vertically Suspended (VS). The following section details the various configurations within each …

These pumps have axially split casings and are suitable for higher-pressure applications compared to BB3 pumps. Type BB5: Between Bearings, Double-Suction, Multistage Pumps …

The function of the second casing in a BB construction is to resist higher pressures. NOTE Examples of pumping elements include diffuser, diaphragms, bowls and volute inner casings. …

Sep 24, 2021 · BB3 can produce very high discharge pressure for demanding applications like high pressure boilers. There is large pressure difference between inlet and outlet side of these …

Feb 8, 2021 · For example, a double-casing between a bearing multi-stage pump (BB5) will cost more than an axially split multistage pump (BB3), but the BB5 is designed for high reliability in …

View the reference table for API Pump Type Classification, including information about stages, casing, coupling, and more here