EN 558-2 : 1995

0 Introduction
1 Scope
2 Normative references
3 Definitions
4 Dimensions and tolerances
Annex A (informative) Origin of basic series
Annex B (informative) Relationship between DN and NPS
Tables
1 Dimensions of basic series
2 Tolerances
3 Gate valves
4 Butterfly valves - Flanged type
5 Butterfly valves - Wafer type
6 Plug valves and ball valves
7 Diaphragm valves
8 Globe valves - Straight and oblique pattern
9 Globe valves and lift check valves - Angle
     pattern
10 Check valves - Flanged type
11 Check valves - Wafer type
12 Globe control valves - Straight pattern
13 Globe control valves - Angle pattern
14 Butterfly control valves - Flanged type
15 Butterfly control valves - Wafer type
16 Eccentric rotary plug control valves and segmented
     ball control valves - Wafer type and flanged type
17 Ball control valves

Specifies face-to-face (FTF) and centre-to-face (CTF) dimensions for Class designated metal valves used in flanged pipe systems.