Wear problems are common in dilute phase conveying systems with high velocities. The conveyed product slides along the elbow wall at a high velocity and high centrifugal forces press the conveyed material against the outer metal surface. The resulting friction causes the elbow walls to wear out quickly.
Pelletron developed a unique, patented conveying pipe elbow that is trade named the Pellbow®. It is especially designed to minimize damage caused when solid particles are injected into a high velocity conveying system — the higher the velocity, the higher the friction. Using a Pellbow® avoids the problems caused by friction in traditional elbows. By design, material flowing through the Pellbow® forms a pocket or “impact-zone” and moves slowly upward and out. Incoming material is deflected at 90 degrees with minimum resistance and no impact damage. The Pellbow® is wear-resistant making it the ideal solution for conveying abrasive products. The Pellbow® is self-cleaning when the material flow is stopped and works in all installation positions.
Long-radius elbows or other types of pipe bends in existing vacuum and pressure dilute phase conveying systems can be easily retrofitted with the Pellbow®. The pressure drop compared with long-radius elbows is minimal higher. The product-to-air ratio of minimum 3:1 or higher guarantees best results. The Pellbow® is designed to fit all kinds of pipe and tube connections.
The Pellbow® is available in aluminum, stainless steel and cast iron for pipe sizes from 1.5” up to 12”, as well as in surface hardened versions.
Learn more about Pelletron's Pellbow® http://www.pelletroncorp.com/en/pipe-bends-pellbow.html
For more information, contact us: Pelletron Corporation Tel.: 717-293-4008
