API 606 : 3ED 89

Notes to purchaser
Section 1 - General
1.1 Scope
1.2 Referenced publications
Section 2 - Design
2.1 Extension dimensions
2.2 Extensions attached by welding
2.3 Female end connection
Section 3 - Body extension materials
Section 4 - Shipment
4.1 Protection of female end
4.2 Protection of male extension
Figure
1 Typical extended-body valve
Tables
i Abbreviations for post-weld heat treatment
     conditions to be used in marking valves
1 Dimensions for welded-end extensions: Classes 800
     and 1500
2 Dimensions for threaded-end extensions: Class 800
3 Dimensions for socket-welding ends: Classes 800 and
     1500
4 Comparative wall thicknesses
5 Materials for extensions welded to valves

Valves with integral or welded male extension for direct attachment as branch, conforming to Class 800 or Class 1500 as API 602. Coverage includes: extensions attached by welding; external dimensions; female end connection; protection of male extension; protection of female end. Also gives detailed tables.