Api 610 13th Edition [better] -

The (e.g., OH2, BB3, VS4) you are most interested in.

Other appendices have been updated or renamed. For example, , previously titled “Determination of Residual Unbalance,” is now renamed to “Procedure for the Verification of Residual Unbalance,” signaling a more process‑oriented description of how residual imbalance should be confirmed.

: A strict mandate was added for pumps with discharge nozzles larger than 3 inches (80 mm); they must have head values within of each other when operating in parallel. Field Proven Requirement Api 610 13th Edition

Minimizes the risk of hazardous fluid leaks.

In the high-stakes environment of the oil, gas, and petrochemical industries, equipment reliability is not just a goal—it is a necessity. A single pump failure can result in costly downtime, environmental hazards, and safety risks. For decades, the benchmark for reliability in this sector has been . The (e

The 13th Edition will almost certainly retain the requirement that seal chamber pressure be at least to ensure proper flush and cooling flow. Flush systems must comply with API 682, which provides over 30 different seal plans (API Plans 01 through 76) to accommodate various operating conditions.

For heavy-duty applications, lubrication failure or bearing misalignment can lead to catastrophic pump failure. API 610 provides detailed instructions on bearing selection and housing design. : A strict mandate was added for pumps

One of the most critical factors in preventing pump failures is shaft design. API 610 contains several requirements specifically aimed at ensuring adequate shaft stiffness, including:

: The draft includes references to API Standard 20S for additively manufactured (3D-printed) metallic components, reflecting the shift toward new manufacturing methods.

(“Materials and Material Specifications for Pump Parts”) remains in the same order, but a new Table H.5 has been added. While the full contents of this new table are not yet publicly detailed, it is expected to address emerging material requirements, possibly relating to hydrogen service, corrosion‑resistant alloys, or stricter limits on non‑metallic components.

With refineries adapting to alternative fuels, the 13th Edition introduces tighter design guidelines for like liquid hydrogen and carbon capture transport (CCUS). Pumps operating in these sectors demand superior shaft sealing protection and specialized materials to prevent hydrogen embrittlement. 3. Stringent Material Sub-Classes