Applicable Standards
Manufacturing and Acceptance:ASME B16.34 - BS1868
Butt-welded end size:ANSI B16.25
Flange size:ANSI B16.5
End to End: ANSI B16.10
Valves test:API 598
Introduction：Flange end size、End to End、manufacturing and acceptance can be supplied as customers' requirements.
Introduction
The butterfly valve structure is mainly composed of valve body, valve plate, transmission parts and actuator. The disc-shaped valve plate rotates back and forth about 90 ° to open, close or mediate the fluid. The outstanding features are small volume, light weight and small installation size. Butterfly valve is most suitable for occasions with large diameter, large flow, fast opening and closing speed, good fluid control characteristics and unclean medium.
Shell Mat'l : WCB（A105） WC6（F11) WC9(F22) C12A(F91) etc.
Properties and Features
It can be opened or closed only by rotating 90 °, so the opening and closing speed is fast, between 15 ~ 70 °, with approximate logarithmic flow characteristics and good regulation performance
The valve body has the function of valve seat, which can flush the inner wall of the valve body by throttling. It has the function of "self-cleaning" and can be used for unclean media
Small installation space and easy maintenance
The valve has many opening and closing times and long service life
