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API - STD 677

General-purpose, Extruder, and Epicyclic Gear Units for Petroleum, Chemical, and Gas Industry Services

active, Most Current
Organization: API
Publication Date: 1 September 2021
Status: active
Page Count: 188
scope:

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).

The requirements for parallel shaft helical gears applied to extruder services are included in Section 9 of this standard.

The requirements for epicyclic gears driving equipment, such as electrical generators, centrifugal compressors, and pumps, are included in Section 10 of this standard.

This standard does not apply to gears in special-purpose service, which are covered in API 613, to gears integral with other equipment, or gears with noninvolute tooth forms.

NOTE General-purpose gears are applied in equipment trains that are usually spared, or are in noncritical service. Typical applications for which this standard is intended are cooling tower water pump systems, forced and induced draft fan systems, and other general-purpose equipment trains.

Document History

STD 677
September 1, 2021
General-purpose, Extruder, and Epicyclic Gear Units for Petroleum, Chemical, and Gas Industry Services
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,...
April 1, 2006
General-Purpose Gear Units for Petroleum, Chemical and Gas Industry Services
This standard covers the minimum requirements for general-purpose, enclosed single and multistage gear units incorporating parallel shaft helical and right angle spiral bevel gears for the petroleum,...
April 1, 2006
General-Purpose Gear Units for Petroleum, Chemical and Gas Industry Services
This standard covers the minimum requirements for general-purpose, enclosed single and multistage gear units incorporating parallel shaft helical and right angle spiral bevel gears for the petroleum,...
April 1, 2006
General-Purpose Gear Units for Petroleum, Chemical and Gas Industry Services
This standard covers the minimum requirements for general-purpose, enclosed single and multistage gear units incorporating parallel shaft helical and right angle spiral bevel gears for the petroleum,...
March 1, 2006
General-Purpose Gear Units for Petroleum, Chemical and Gas Industry Services
This standard covers the minimum requirements for general-purpose, enclosed single and multistage gear units incorporating parallel shaft helical and right angle spiral bevel gears for the petroleum,...
July 1, 1997
General Purpose Gear Units for Petroleum, Chemical, and Gas Industry Services
1.1 Scope 1.1.1 This standard covers the minimum requirements for general-purpose, enclosed single and multistage gear units incorporating parallel shaft helical and right angle spiral bevel gears...
March 1, 1989
General-Purpose Gear Units for Refinery Service
A description is not available for this item.
January 1, 1989
General-Purpose Gear Units for Refinery Service First Edition; Erratum - September 1989
A description is not available for this item.

References

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