Date:July 28, 2014

AWWA C504 Double Flange Butterfly Valve

Advanced newly design with dovetail seal design and captured by epoxy on the back side.
Top of seal with raised multiple raised ring to have more contact with disc but less friction.
The disc design with dome shape backside and thru disc can provide better flow capacity, stronger and less weight.
The shaft and disc connection with tangential pin which can be exchangeable and provide rigid connection.
Epoxy coated interior and exterior.