Api 610 13th Edition -

The American Petroleum Institute (API) standard 610 is the global benchmark for centrifugal pumps used in the petroleum, petrochemical, and natural gas industries. As processing plants evolve toward higher pressures, extreme temperatures, and more aggressive fluids, the standard must adapt.

• Previous Approach: Historically, analysis was largely triggered by pump size, speed, or application type.
• 13th Edition Approach: The new standard adopts a more risk-based approach. The criteria for requiring a lateral analysis are refined based on pump specific speed, suction specific speed, and the proximity of the pump's operating speed to the first or second critical speeds.
• Separation Margins: The standard clarifies the required separation margins between operating speeds and critical speeds to ensure the rotor remains stable across the entire operating map, not just at the rated point.

5. Materials and Corrosion Resistance – The H2S & Chloride Clause

Introduction

Step 1: Audit Your Existing Pump Fleet

Review your current pump data sheets (vendor datasheets, not just purchase orders). Identify pumps that fail the new thermal flow or vibration criteria. These are candidates for retrofit or replacement. Api 610 13th Edition