... designs. (5)service life: Comparable to imported butterfly valve, with 18months warrenty for normal use 3. Working principle:Remote-controlled ... request. 6.Technical Data: Standard SMS, DIN, 3A, IDF, ISO, RJT Materail Quality Stainless steel 304, 316L Power Manual, Pneumatic ... for forged processing Parts of Butterfly Valve Valve body, handle, SS dish, Seal, Bolt, Platic Ball 7.Drawing of SMS welded ...