Normen STN - Slowakische nationale Normen - Seite Nr. 879

Devices to prevent pollution by backflow of potable water - Hose union backflow preventer DN 15 to DN 32 - Family H, type A

Die Norm herausgegeben am 1.11.2005

Devices to prevent pollution by backflow of potable water - Presssurised air inlet valves DN 15 to DN 50 - Family L, type A and type B

Die Norm herausgegeben am 1.11.2005

Devices to prevent pollution by backflow of potable water - Automatic diverter - Family H, type C

Die Norm herausgegeben am 1.11.2005

Devices to prevent pollution by backflow of potable water - Air gap with circular overflow (restricted) - Family A, type F

Die Norm herausgegeben am 1.11.2005

Devices to prevent pollution by backflow of potable water - Air gaps with minimum circular overflow (verified by test or measurement) - Family A, type G

Die Norm herausgegeben am 1.11.2005

Non controllable backflow preventer with different pressure zones - Family C, type A

Die Norm herausgegeben am 1.12.2005

Valves and fittings for buildings and devices to prevent pollution by backflow of potable water - Polymer parts and housings under internal pressure and without external loads

Die Norm herausgegeben am 1.3.2025

Industrial valves - Steel check valves

UNGÜLTIG herausgegeben am 1.12.2006

Water work fittings. Earth sets. Dimensions

Die Norm herausgegeben am 1.7.1988

Covers for gate valves, globe valves, hydrants. Dimensions

Die Norm herausgegeben am 1.4.1989