Standards STN - Slovak standards - Page 877

Devices to prevent pollution by backflow of potable water - Pipe interrupter with atmospheric vent and moving element DN 10 to DN 20 - Family D, type B

Standard published on 1.11.2005

Devices to prevent pollution by backflow of potable water - Pipe interrupter with permanent atmospheric vent DN 10 to DN 20 - Family D, type C

Standard published on 1.11.2005

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

Standard published on 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

Standard published on 1.11.2005

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

Standard published on 1.11.2005

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

Standard published on 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

Standard published on 1.11.2005

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

Standard published on 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

Standard published on 1.3.2025

Industrial valves - Steel check valves

WITHDRAWN published on 1.12.2006