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More details for clamped butterfly-type ball valve3)Standards: ISO, DIN, 3A, SMS, IDF
4)Working principle: Remote-controlled operation by the driving gear or manual operation by the handle
5)Seal Ring: Silicon rubber ,EPDM
6)Three drive forms: Normally closed, normally opened and opened and closed by two air flues separately
7)Application: Pharmacy, beer, food, dairy, beverage, cosmetic, chemical industry