Model Number:ZSJZ50-250 Flange water flow detector 1.Size:50mm, 65mm,80mm,125mm,150mm,200mm 2.Seal test pressure: 2.4Mpa Flange water flow detector1) Size: 50mm, 65mm, 80mm, 125mm, 150mm, 200mm2) Seal test pressure: 2.4Mpa3) Working pressure: 0.14-1.2Mpa4) Active standard: 15L/min5) Retard time: 2-90s