Hi, this is COVNA sanitary type butterfly valve with FDA certification.
It can be manual operated like this, or it can be Electric actuated or Pneumatic actuated.
For the Pneumatic actuator, it can be both Double acting or Single acting.
And for Electric actuator, it can be ON/OFF Type, Regulation type or Intelligent type.
Regarding the valve body, the material could be stainless steel SS304, SS316 or SS316L.
And the size of this butterfly valve is from Φ19 to Φ217mm.
And the most commonly used connection is tri-clamp like this, or it could be butt-welded, and male threaded connection.
This type of sanitary butterfly valve is widely used in Food&Beverage industry and Medical Industry.
www.china-covna.com