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API STD 671 : 2020 INC ERR 1:2024 (R2026)

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by

Special-purpose Couplings for Petroleum, Chemical, and Gas Industry Services

Available format(s)

PDF

Language(s)

English

Published date

20-08-2020

Superseded date

21-02-2026

£218.24
Excluding VAT

This standard specifies the requirements for couplings for the transmission of power between the rotating shafts of two machines in special-purpose applications in the petroleum, petrochemical, and natural gas industries.

DocumentType
Standard
Pages
103
ProductNote
Reconfirmed on Jan 2026
PublisherName
American Petroleum Institute
Status
Superseded
SupersededBy
Supersedes

ISO 14120:2015 Safety of machinery — Guards — General requirements for the design and construction of fixed and movable guards
ISO 1940-1:2003 Mechanical vibration — Balance quality requirements for rotors in a constant (rigid) state — Part 1: Specification and verification of balance tolerances

£218.24
Excluding VAT