Industrial valves - Face-to-face and centre-to-face dimensions of metal valves for use in flanged pipe systems - Part 1: PN-designated valves; German version EN 558-1:1995— 18 стр.
Industrial valves - Face-to-face and centre-to-face dimensions of metal valves for use in flanged pipe systems - Part 2: Class-designated valves; German version EN 558-2:1995— 19 стр.
Valves for water supply - Fitness for purpose requirements and appropriate verification tests - Part 1: General requirements; German version EN 1074-1:2000— 11 стр.
