API 685

Sealless Centrifugal Pumps for Petroleum, Petrochemical, and Gas Industry Process Service
API Std 685 | 2nd Edition | February 2011|

Covers the minimum requirements for sealless centrifugal pumps for use in petroleum, heavy duty petrochemical and gas industry services. This standard is applicable to single stage overhung pumps of two classifications: magnetic drive pumps and canned motor pumps.