Check valves. Technical code

WITHDRAWN published on 8.5.1991

Cast steel lift check valve flanged ends NP 16

WITHDRAWN published on 27.8.1969

Cast steel lift check valve flanged ends NP 25

WITHDRAWN published on 27.8.1969

Cast steel lift check valves with flanged ends PN 40

WITHDRAWN published on 18.6.1986

Lift check valves with welding ends and with flanged ends PN 100, 160 and 250

WITHDRAWN published on 11.2.1983

Industrial valves - Metallic check valves

Standard published on 1.5.2022

Průmyslové armatury - Zpětné armatury z litiny (Norma k přímému použití jako ČSN).

WITHDRAWN published on 1.10.2001

Industrial valves - Cast iron check valves

WITHDRAWN published on 1.3.2002

Industrial valves - Metallic check valves

WITHDRAWN published on 1.10.2020

Industrial valves - Steel and cast iron check valves

WITHDRAWN published on 1.11.2016