The 13th edition requires more rigorous lateral and torsional rotor dynamic analyses. This change prevents resonant frequencies from matching operational speeds, especially in variable frequency drive (VFD) applications. 3. Comparison Matrix: 12th Edition vs. 13th Edition Feature / Requirement API 610 12th Edition API 610 13th Edition General alignment with API 682.

| Feature | API 610 11th Ed. (2010) | API 610 12th Ed. (2021) | API 610 13th Ed. (draft) | |---------|------------------------|------------------------|---------------------------| | | Identical adoption | Diverged; references API standards primarily | Continues divergence | | Baseplate appendix | Included (Appendix D) | Included (Appendix D) | Removed (relocated special‑purpose pumps to D) | | Appendix J title | Determination of Residual Unbalance | Determination of Residual Unbalance | Procedure for Verification of Residual Unbalance | | BB1 pump classification | Single type | BB1‑A and BB1‑B subtypes | (likely retained) | | Minimum continuous operation | 3 years minimum | Replaced with “field‑proven” concept | (likely retained) | | Material tables | Tables H‑1 through H‑4 | Tables H‑1 through H‑4 | Adds Table H.5 | | Requirements hierarchy | Implicit | Explicit (purchase order > standard) | Refined (expected) |

| Requirement | 11th Edition | 12th Edition | 13th Edition | | :--- | :--- | :--- | :--- | | | Optional | Recommended | Mandatory for pumps > 150 kW | | Coupling guard locking | Hex bolts | Hex bolts with locking wire | Quick-release with captive bolts | | Casing drain | 1" NPT minimum | 1" NPT minimum | 2" for pumps > 50 L/s flow | | Nameplate data | QR code not required | Optional QR code | Mandatory QR code linking to digital O&M manual | | Spare parts interchangeability | Same OEM only | Same OEM only | Same OEM + certified third-party (with approval) |

regarding seal configurations or material classes between the 12th and 13th editions? API 610 and ISO 13709 pumps - Sulzer

The American Petroleum Institute (API) published the , titled Centrifugal Pumps for Petroleum, Petrochemical, and Natural Gas Industries . This edition supersedes the 12th Edition (2010) and represents the latest evolution in pump technology, reliability engineering, and standardization.

is recognized globally as the premier standard for centrifugal pumps used in the petroleum, petrochemical, and gas industries . As industries evolve toward greater safety, higher efficiency, and stricter environmental regulations, the standard is updated to reflect the latest engineering practices.

┌────────────────────────────────────────────────────────┐ │ API 610 EDITION LIFELINE │ ├───────────────────┬───────────────────┬────────────────┤ │ 11th Edition │ 12th Edition │ 13th Edition │ │ (2010) │ (2021) │ (Development) │ └───────────────────┴───────────────────┴────────────────┘ Key Focus Areas Anticipated in the 13th Edition

One of the most significant structural changes in this edition is the adoption of . Previously, API 610 was adopted as ISO 13709. In the 13th Edition, API has adopted the ISO standard back as an API document, creating a unified global standard.