ZSHWB pneumatic eccentric butterfly valve: 
It has unique eccentric configuration. It is of compact configuration, good bellows seal and long performance life, and has two functions of both the regulating and shut-off valves. It is widely applied to chemical plant, paper making, electric power, spinning mill, pharmacy, packinghouse and sewage farm under regulating and controlling systems

Main technical parameters: 
1) Nominal size: DN 50-600mm
2) Nominal pressure: ANSI 150-600lbs
3) Flange standards: ANSI
4) Leakage class: ANSI IV/V/VI
5) Body's material: WCB/CF8/CF8M

Characteristics: 
1) Equal percentage
2) Temperature range: -60~+450°C