Aerodyne Vacu-Valve® Platypus
and Vacu-Valve® Armadillo
Trickle Valve Construction
The open-construction Platypus and the closed-construction Armadillo trickle valves are the most economical ways to manage dust discharged from bag filters or cyclones under negative pressure. The fitted duckbill sleeve adjusts to the desired vacuum and material is continuously discharged. It requires
no controls, lubrication or power supply and easily handles abrasive materials. This
trickle valve can be used in higher temperature applications as well. The Vacu-Valve® dust discharge valve is available at a fraction of the cost of the rotary airlock valves it replaces. Available in 8" flange size only.
- Inexpensive
- No power source needed
- Carbon or stainless steel
Armadillo 8RCN (enclosed) and Platypus 8RN (open) depicted at left.
View Vacu-Valve Animated Demo.
How Does a Trickle Valve Work?
A vacuum operated trickle valve is an alternative to a rotary valve in some applications (see our rotary valve alternative case study). This non-powered automatic valve has a duck-bill rubber sleeve that is held closed by the negative pressure of a dry material handling system. As collected material builds up above the valve, the sleeve is forced open and material is discharged from the hopper. The valve then re-closes automatically.
The trickle valve operates without power and controls, requires no lubrication, and it is a fraction of the cost of the rotary airlock valves it typically replaces. The valve is available with a variety of sleeve materials to suit various application requirements.
The Aerodyne Vacu-Valve® Platypus and Vacu-Valve® Armadillo are examples of vacuum operated trickle valves that provide an economical way to manage dust discharged from bag filters or cyclone dust collectors under negative pressure.
A vacuum operated valve is suitable for continuous discharge applications that have dense, free-flowing material such as sand, coffee, and many industrial powders.
Vacu-Valve Sleeve Options
Neoprene - The standard neoprene duck bill sleeve is recommended for most non-abrasive to slightly abrasive dusts and powders. This sleeve is recommended for operating temperatures up to 200°F.
Nitrile (new!) - The newly improved Nitrile duck bill sleeve is chemical and caustic resistant as well as abrasive resistant. The white coloring of the sleeve is the perfect solution to applications involving solid white dust, eliminating the possibility of dark specs which may contaminate a finished product.
VHT High Temp (new!) - The VHT duck bill sleeve is heat resistant in temperatures up to 400°F/200°C and offers excellent resistance to aggressive fuels and chemicals.
Aerodyne Trickle Valve Case Studies
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