... DCExplode-proof ExdBT4Spectrum 2*,4*,6,10,15,25,40,50,80,100,150,200,250,300mmSpecification ModelVIVO3011-NVIVO3011-AVIVO3011-BVIVO3011 ... .5-25 m3/h4-40 m3/hDN40 (1.5")5-50 m3/h6-60 m3/hDN50 (2")6-65 m3/h5 ... -650 m3/h80-1600 m3/h50-1000 m3/h DN200 (8")80-1600 m3/h50-1000 m3/h130-2500 m3/h DN ...