API Std 613 API Standard 613, Special Purpose Gear Units for Petroleum, Chemical and Gas Industry Services, Sixth Edition

standard by American Petroleum Institute, 07/01/2021

Full Description

This standard covers the minimum requirements for special-purpose, enclosed, precision single- and double-helical one-and two-stage speed increasers and reducers of parallel-shaft design for refinery services. This standard is primarily intended for gear units that are in continuous service
without installed spare equipment.