The (First Edition, 2023) is the American Petroleum Institute’s definitive standard for the inspection and repair of centrifugal pumps. It serves as a comprehensive roadmap for plant engineers and repair shops, covering the entire lifecycle of a pump repair—from the initial field discovery to the final reinstallation and startup.
Standardized practices for reassembling the casing and rotor to meet specific runout and fit requirements.
Detailed tolerances and acceptance criteria for cleaning, non-destructive testing (NDT), and manufacturing new parts.
The standard primarily addresses centrifugal pumps used in petroleum, petrochemical, and natural gas facilities, specifically focusing on pump types: Overhung (OH): Types OH1 through OH5.
API RP 697 provides a structured approach to ensure consistency, safety, and reliability across the following stages:
Procedures for returning the pump to the field, including leak testing and initial startup. Integration with Other Standards
Initial assessment at the plant to identify the issue and determine if the pump must be removed from its base.
