Electric Butterfly Valve,motorized butterfly valve, Actuator valve Material : AISI304/316L Standard : DIN/SMS/3A/ISO Electric Butterfly Valve,motorized butterfly valve, Actuator valve Material of valve: AISI304, AISI304L, AISI306, AISI316L Standard of valve: DIN/SMS/3A ... two air flues separately. Medium: Beer, Dairy, Beverage, Pharmacy. Sanitary Electric Butterfly Valve