API 610 is a pump standard for centrifugal pumps used in the oil, petrochemical, and natural gas industries. API, short for the American Petroleum Institute, is an organization that develops technical standards for the oil and natural gas industries. API 610 is the centrifugal pump standard issued by the API.

Due to the demanding nature of oil and gas applications, API 610 is a necessarily strict standard, and pumps manufactured according to API 610 typically cost more than those produced under hydraulic institute standards. The suction flanges manufactured in accordance with API 610 are comparable to ANSI flanges.

Barkeh Pump Company is also one of the suppliers of these pumps in the oil, gas, and petrochemical industries.

The classification of pumps based on API 610 is defined according to the following table.