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The Different Approaches for Successful Pneumatic Conveying

pneumatic conveying system by serby ag

Since Pneumatic systems were introduced in the 19th century, Pneumatic conveying systems had evolved, and today they are the most efficient method to transport bulk materials from one point to another for industrial purposes.

Some would say pneumatic conveying systems are not sufficient enough for various negative reasons, such as pipe blockage, system wear-out or the degradation of the conveyed material.

In this article I will share with you some of the knowledge my team of engineers acquired throughout the years, and reveal the most efficient approach that will help companies overcome obstacles, and save them significant amounts of money. Velocity Matters

There is an important and direct correlation between the conveying capability of a specific material and its quantitative qualities. Based upon this equation, it is determined if that same material shall be conveyed using a high or a low velocity method. Whether planning and engineering a new system or upgrading an existing one, there are key factors to consider. Some materials may necessarily need to be in a constant state of transfer, while others may only be moved in batches. For either purpose, there are different relevant methods available, and in each of them, different velocities are applied. The two most common methods to pneumatically transfer particulate material from an entry point to an exit point are dilute-phase and dense-phase. Dilute-phase conveying is known for its relatively high velocity, while usually the conveying pipes are suspended in the air.

The other method is dense-phase, known for medium-low velocity application while the conveying pipes are mostly not suspended. As a high velocity method, dilute-phase requires a high energy consumption, which poses financial and even environmental issues for a company operating it. Therefore, in the past decade there has been a significant development in the industry that increased the capability to convey larger variety of materials in lower velocity. Better, Stronger, Slower You may already know (or be reading about it for the first time), that there is a third type of pneumatic conveying method, it is called Wave-Phase©.

Developed and genuinely optimized by Reuven Serby - founder and CEO of Serby AG, the Wave-Phase© technology is low velocity based, which requires a small diameter inner pipe that is placed within the main conveying pipe.

Such an inner pipe stabilizes the conveying process, and thus eliminates the need of external bypass and equipment, as normally applied in dense-phase technology. Wave-phase© has many advantages over the other conventional conveying methods. It is especially ideal for fluidized bulk materials that tend to block the system.

If a plug does occur, this modern technology allows gas flow into the internal bypass-pipe, the resistance in the bypass pushes the gas back into the main pipe through one of the next opening, enabling the plug to be released. An important point is that the same type of materials may obtain different qualities, and therefore will perform differently when pneumatically conveyed.

For that main reason, conveying systems must remain dynamic in their design. They should be carefully engineered from scratch or refurbished by highly skilled and experienced engineers who specialize in pneumatic conveying systems and material handling cycles.

Indeed, their experience-based knowledge in conveying processes can help significantly cut a company's costs and unnecessary expenses.

To learn about all the advantages of Wave-phase© and Serby AG's services, contact us via our contact form or write us at

Naama Tran,

Serby Online Marketing & Business Development

#pneumaticconveyingmethod #dilutephase #densephase #wavephase

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