Hi, this is COVNA UPVC Wafer type butterfly valve.
It can be manual operated by lever or gear operated.
Also it can be controlled by Pneumatic actuator and Electric actuator.
The Pneumatic actuator could be both Double acting and Single acting.
And Electric actuator, you can control it by ON/OFF Type, Regulation type or Intelligent type actuator.
About the valve body, the material could be UPVC, CPVC, or PP.
The advantages of this type of butterfly valve is that it has very light weight, and compact design to save the space, and also the cost is relatively lower than other butterfly valves.
Besides, it also has slight chemical resistance.
So it can be mostly used in Water&Wastewater Treatment industry, Seawater desalination and also Chemicals.
Last but not least, the size of this type of plastic butterfly valve is up to DN400 which is 16 inch.

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