API RP 697 First Edition 2023 PDF
This recommended practice (RP) covers the minimum recommendations for the inspection and repair of API 610 pumps types OH1 through OH5 and BB1 through BB5.
This document covers the entire process of field inspection, modifications, inspection, upgrades, repair and/or new component manufacturer, reassembly of the pump casing and rotor in the shop, and the reinstallation and start-up of the pump in the field.
Pumps in hydrofluoric acid service may require inspection and repair methods that are beyond the scope of this RP. Each phase of inspection will determine a work scope. The work scope will become more definitive as the inspection process progresses.
The basis of repair recommendations should be to produce a safe reliable pump while:
— returning dimensions required for spare parts interchangeability to the latest design fits and clearances,
— maintaining interchangeability with other units,
— using existing spare parts,
— eliminating errors in manufacturing future spare parts that could be caused by undocumented dimensional changes,
— maintaining its torque transmission capabilities.
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