• Shopping Cart
    There are no items in your cart
We noticed you’re not on the correct regional site. Switch to our AMERICAS site for the best experience.
Dismiss alert
Celebrate World Standards Day. Save 10% with code WSD2026 until 31 Oct. Save now

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Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by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Superseded date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

£223.30
Excluding VAT
Summarise this standard

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Superseded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

⚠

A newer version of this standard is available.

View Current Edition
£223.30
Excluding VAT