Trickle Valve System Proves to be the Right Choice
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A manufacturer of carbon and silicon seals and bearings recently contacted Aerodyne to replace its rotary valves. The company already uses the Vacu-Valve Platypus valves on its spray dryers and had been pleased with the maintenance free operation of the Vacu-Valve trickle valve. The plant operators were interested in replacing the remaining rotary valves on their dust collectors.
Vacu-Valve Trickle Valve Highlights
The Vacu-Valve Trickle Valve System is a cost-effective solution to troublesome rotary valves. It comes in two designs: the open construction Platypus and the closed construction Armadillo. Trickle valves are the most economical way 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. There are a multitude of duckbill sleeves that can be selected to better suit the application the Vacu-Valve will be used in.
The Vacu-Valve operates based on the equilibrium between the vacuum in the system above it, the particulate size, shape, mass and physical characteristics. The sleeve forms an airlock when exposed to negative pressure above it. The vacuum must be less than -16″ W.C. to pass solids. Solids will build up in the Vacu-Valve as the vacuum and sleeve friction resist, letting the particulate out. The force of gravity and weight of built-up particulate force the particles down through the sleeve until they fall out of the bottom. Fine particles with a spherical shape (ex. sand) work best. Flow rates vary based on the particulate characteristics and operating conditions. Contact an Aerodyne representative to see if this valve will work for your application. Available in 8″ and 10″ flange size.
- Inexpensive
- No power source needed
- Carbon or stainless steel
- Stocked and normally can ship 2-3 business days after order
- Silicone High Temperature Sleeve is heat resistant to temperatures up to 500°F
- Suitable for non-explosive applications
After replacing the high-maintenance rotary valves with the Vacu-Valve Armadillos, the company has reported that it is much more productive now that plant operators don’t have to constantly take the time out of production for rotary valve maintenance issues.
