The double-flap series are rotary valves manufactured by ACS. It is suitable for feeding and metering process.
The valve has 3 different heights measuring from 28 3/4"up to 40 1/4". In addition, the square flange has 6 different sizes within 6" up to 16".
The device is enclosed within a carbon steel housing, and has heavy-duty flappers made in carbon steel, with neoprene seal strips and carbon steel seats.