Small Resistance Slow-Closing Butterfly Check Valve

Slow-close time(S): 0~60
Nominal diameter DN(mm): 50~1200
Nominal pressure PN(MPa): PN 1.0, 1.6
Applicable media: Clean water, sewage, sea water
Material of valve body: Cast iron carbon steel
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This valve is a safety device mounted in the pipeline or pump outlet to prevent the pump from inversed running due to the differential water hammer's shock in the pipeline when the pump stops and features a brand-new structure, small volume, light weight, small fluid resisteance, reliable seal, stable open-close, long duration, better energy-saving effect.

Suitable for the pipeline related to water supply and drainage, fire-fighting, warming etc. Systems or the pump outlet to prevent both pump and pipeline from being damaged due to the water hammer produced when the medium flows back and form the silencing effect.