electric butterfly valve Material:AISI304 , AISI316L Specification:DN15-200 Standard:ISO, ... ”Standard:ISO, DIN, 3A, etcMaximum:1.0Mpa(10bar)Model of drive:Manual, Electric, PneumaticConnection:Welded, Clamped, Threaded, FlangedWorking Principal:manual operation or ... , Normally opened, opened and closed by two air flues separatelyElectric drive: (DC)12V, 24V, 36V (AC)220V, 380VSealing Material:Silicon ...