API Standard 677 Fourth Edition 2021 PDF
$100.00
General-purpose, Extruder, and Epicyclic Gear Units for Petroleum, Chemical, and Gas Industry Services, Fourth Edition
American Petroleum Institute , 09/01/2021
File Format: PDF
API Standard 677 Fourth Edition 2021 PDF
This standard covers the minimum requirements for general-purpose, enclosed single and multistage gear units incorporating parallel shaft spur, and helical gears for use in the petroleum, chemical, and gas industry services. General-purpose and extruder gears manufactured according to this standard are limited to pitch line velocities that do not exceed 60 m/s (12,000 ft/min).
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