Actuated Butterfly Valve, Pneumatic Butterfly Valve. 

Valve Manufacturing standards: API, ANSI, BS, DIN, JIS

Butterfly Valve Sealing: resilience-seated (PTFE, RPTFE), metal-seated. 

Valve Size range: from 1-1/4 inch to 64 inch (DN32mm - DN1600mm). 

Pressure: 150lbs, 300lbs, 600lbs. 

Applicable Tempt.: from -40 degrees C to 425 degrees C. 

Butterfly Valve Connection: flanged, wafer, lug. 

Valve Body materials: carbon steel, stainless steel, alloy steel.