Water flow indicator Type: ( AC220V/5A, DC24V/3A) 1) Flange (ZSJZ) 2) Jointing (ZSJZ/H) 3) Saddle (ZSJZ/A) 4) Thread(ZSJZ/S) Nominal Diameter:50mm,65mm,80mm,100mm,125mm,150mm,200mm,250mm. Rated working pressure :1.2Mpa Retard Time(s) :2---90