4" DA-4 is located on the back of the manifold or on the main air inlet. The valve is used to bypass or dump air not required by the suction jet during a load mode and is usually in a closed mode. During material discharge, the valve is opened to assist material transfer in a convey mode.
Port Opening - 4" in diameter
Actuators - pneumatic
Operational Pressure - low (15 PSIG)
Operating Temperature -20° to 300°F
Weight - 25 lbs.