Stainless Steel Sanitary Threaded Butterfly Valve 1.Size:DN15-DN200 2.Standard:ISO, DIN, 3A, SMS, IDF, etc 3.pressure:1.0M Stainless Steel ... : Welded, male, clamped, flanged 6.Driver: Manual, pneumatic, electric 7.Manual oparation: Pulling handle, multi-position handle 8.Pneumatic ... , normally opened, opened and closed by two air flues separately9.Electric drive: (DC)12V, 24V, 36V (AC)220V, 380V ...