... steel ball valve,sanitary quick installed ball valve pneumatic ball valve Ball valve,sanitary ball valve,stainless ... steel ball valve,sanitary quick installed ball valve pneumatic ball valve,zero-retention ball valve, Sanitary clamp ... can also be operated by an optional ¼ turn pneumatic or electric actuator.1>. Size: 1''-6''.2>. ... Branch ,Econ.& Tech. Dev . Zone, Wenzhou-China Pneumatic 3pcs Ball Valve