In chemical processing, tower internals like packings are vital for optimizing gas-liquid contact. Pressure drop, the pressure loss across a packing bed, is a key metric affecting energy costs and operational efficiency. Among common ring-type packings, pall rings and raschig rings are widely used, each with unique structures that influence their pressure drop behavior.
.png)
Raschig rings, simple cylindrical rings with equal inner and outer diameters, show higher pressure drop due to their unobstructed flow paths. The lack of wall cutouts restricts fluid movement, creating more resistance. In contrast, Pall rings feature window-like notches, which disrupt continuous flow, enhance distribution, and reduce pressure drop. For the same size, Pall rings typically lower pressure drop by 15-30% while maintaining sufficient surface area, improving overall efficiency.
To ensure reliable low-pressure drop performance, choosing a trusted supplier is critical. Helvo, a specialized manufacturer of tower internals, produces precision-engineered Pall and Raschig rings using advanced materials and processes. Their packings consistently deliver stable, low pressure drop, meeting diverse industrial needs and helping clients optimize tower operations.
