ACS Valves BT Series blow-through feeder/airlock for pneumatic conveying

The BT Series blow-through feeder/airlock is designed to ensure optimal bulk density and throughput of hard-to-convey materials such as fine powders and flakes that, in high-pressure pneumatic conveying applications, can easily over-aerate and reduce material feed efficiency.

The feeder/airlock design decreases excess aeration of the material during conveying with an integrated vent port on the return side of the valve housing that automatically vents air leakage. The 8-vane rotary valve design is said to significantly reduce air leakage and maximise the flow path of air through the rotor pocket, improving material pocket release. The minimal air leakage and resulting low, effective pressure drop of the series optimises material flow density, improves material conveying efficiency and reduces total compressed air consumption.

The strength of the valve housing provides optimal service in high-temperature applications and applications requiring pressure differentials up to 20 psig. The housings are also CNC machined to precise tolerances to ensure extended duty cycles by eliminating axial shaft movement, seal leakage and shortened bearing life. An outboard bearing design removes the bearings from the path of damaging and contaminating materials.

The series blow-through feeder/airlock housings are available in cast iron, 304 or 316 stainless steel, in either 20.32 or 25.40 cm round flange sizes. The series is available with a hard chrome housing interior and with adjustable rotor tips.