API RP 687-2023 PDF

Full title and description

API Recommended Practice RP 687:2023 — Special‑purpose Rotating Equipment Repairs. Second edition (2023) providing comprehensive guidance for inspection and repair of special‑purpose rotating equipment assemblies and components (rotors, bearings, couplings and stationary components) used in petroleum, chemical and gas industry services; the edition has an associated Errata 1 released in 2024.

Abstract

This recommended practice establishes recommended procedures and minimum requirements for inspection, assessment, overhaul and repair of special‑purpose rotating equipment. It is organized into introductory chapters with common guidance and separate chapters addressing rotor assemblies for specific equipment types, plus guidance for stationary component inspections and selection/qualification of repair shops. The document is intended to improve safety, reliability and operational consistency for rotating equipment repairs in refinery, petrochemical and gas industry services.

General information

• Status: Current (2nd edition published Oct 2023; incorporates Errata 1 issued in 2024).
• Publication date: October 2023 (catalog listings record October 2023 — some vendor metadata shows 17 October 2023).
• Publisher: American Petroleum Institute (API).
• ICS / categories: ICS: 29.160 (Rotating machinery) / API category: CRE — RP (Recommended Practice) for rotating equipment and related machinery guidance.
• Edition / version: 2nd edition (2023); includes Errata 1 (2024).
• Number of pages: 672 pages (full second‑edition document).

Scope

Provides recommendations for inspection and repair of special‑purpose rotating equipment assemblies and components — specifically rotors, bearings, couplings and selected stationary parts — used in petroleum, chemical and gas industry services. It covers equipment manufactured to the requirements of related API machine standards (for example API 612, API 613, API 617, API 619 and API 671) and is intended for use when creating repair work scopes, performing shop or field repairs, and qualifying repair facilities. The document does not cover removal or reinstallation activities in the field.

Key topics and requirements

• Structure and use of the RP: overview (Chapter 0), common rotor guidance (Chapter 1), equipment‑specific rotor chapters (Chapters 2–7) and stationary components guidance (Chapter 8).
• Inspection practices and acceptance criteria for rotors, journals, keys, couplings and bearing fits.
• Guidance for performing nondestructive examination, dimensional measurement, and metallurgical/repair evaluation.
• Requirements and recommendations for repair shop selection, qualification and documentation of work scope, tolerances and testing before return to service.
• Repair methods, allowable machining/restore limits, balancing and reassembly considerations, plus re‑testing and marking procedures.
• Interfaces to relevant API rotating‑equipment standards (e.g., design/performance standards) for compatibility and reference.

Typical use and users

Used by rotating equipment engineers, maintenance supervisors, reliability teams, repair shop managers, inspection and NDE personnel, procurement/specification authors and technical auditors in refining, petrochemical and gas processing operations. Typical uses include preparing repair scopes, qualifying repair vendors, conducting shop inspections, establishing acceptance limits and documenting repair/return‑to‑service processes.

Related standards

Closely associated with API machine and equipment standards such as API 612 (Special Purpose Steam Turbines), API 613 (Special Purpose Gears), API 617 (Compressors), API 619 (Rotary-Type Positive Displacement Compressors) and API 671 (Couplings). It supersedes the earlier API 687:2001 (R2015) edition and complements newer repair guidance such as API RP 697 (Pump Repair) for pump-specific repair practices.

Keywords

rotor repair; rotating equipment; bearings; couplings; inspection; nondestructive examination (NDE); repair shop qualification; overhaul; balancing; API RP 687; special‑purpose compressors; steam turbines; gears; stationary components.

FAQ

Q: What is this standard?

A: API RP 687:2023 is a Recommended Practice from the American Petroleum Institute giving industry guidance and minimum recommended requirements for inspection and repair of special‑purpose rotating equipment assemblies and components.

Q: What does it cover?

A: It covers inspection, assessment, repair and acceptance criteria for rotors, bearings, couplings and selected stationary components for special‑purpose rotating machines used in petroleum, chemical and gas industries; organized into general and equipment‑specific chapters and includes guidance on repair shop selection and documentation.

Q: Who typically uses it?

A: Rotating equipment engineers, maintenance and reliability staff, repair shop managers, inspection/NDE personnel, procurement/specifiers and auditors in refining, petrochemical and gas processing organizations.

Q: Is it current or superseded?

A: The document is the 2nd edition (published October 2023) and is current with an Errata 1 issued in 2024; it supersedes the earlier 2001 (R2015) edition. For the official authoritative status and the exact publication/errata dates consult the API publications list or API Webstore.

Q: Is it part of a series?

A: Yes — RP 687 is part of API’s rotating‑equipment guidance suite and is intended to be used with related API machine standards (API 612, 613, 617, 619, 671) and other repair/inspection RPs such as API RP 697 (pump repair) where applicable.

Q: What are the key keywords?

A: rotor repair, rotating equipment, bearings, couplings, inspection, NDE, overhaul, repair shop qualification, API RP 687, special‑purpose compressors, steam turbines, gears.