Resilient seated gate valves Series 400
Resilient seated gate valves Series 400
Resilient seated gate valves of Series S420/S421 are intended for use in water transport system, especially for potable water as well as sewage from sanitary and industrial systems. They may be used in above-ground and underground applications, in horizontal pipelines.
Gate valves with soft seal are intended for:– water and sewage distribution systems, storage tanks– potable water treatment (DVGW / WRAS certification)– transport of non agressive liquids
Nominal size: DN 32 – DN600
Face to face acc. to: type S420 – according to EN 558-A1 F5 (DIN 3202), type S421 according to EN 558-A1 F4 (DIN 3202)
Flange accomodation acc. to: EN 1092-2; (DIN 2501) pressure PN10; PN16; PN25
Top flange acc. to: EN ISO 5211
Marking acc. to: EN 19, EN1074
Tightness check acc. to: EN 12266-1
Applications: water & wastewater, potable water, sewage, non-aggressive liquids, gas
