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Views: 2 Author: Site Editor Publish Time: 2025-08-16 Origin: Site
Wangdu (Hebei) Chemical Engineering Co., LTD supplies metal pall ring packing, a widely used type of random packing in chemical, petrochemical, and environmental industries. Metal pall rings are designed to improve liquid–gas contact efficiency while maintaining low pressure drop, making them suitable for diverse mass transfer operations.
The pall ring is an improvement over the traditional Raschig ring. By incorporating windows and internal fingers on the cylindrical surface, it increases the effective surface area and enhances liquid distribution.
Key characteristics include:
Material Options: Commonly produced from stainless steel (SS304, SS316, SS316L) or carbon steel, depending on process requirements.
High Mechanical Strength: Suitable for high-pressure and high-temperature applications.
Improved Mass Transfer Efficiency: Open structure minimizes channeling and enhances gas–liquid mixing.
Low Pressure Drop: Allows higher capacity compared to older random packing designs.
Metal pall rings are used in many industrial operations, including:
Distillation Columns – Hydrocarbon separation and solvent recovery.
Absorption Columns – Removal of acidic gases (SO₂, CO₂, HCl, etc.) from process streams.
Stripping Columns – Recovery of volatile components from liquid mixtures.
Environmental Engineering – Applied in flue gas treatment and chemical scrubbing systems.
Experimental data indicates that metal pall rings can offer 15–25% higher capacity and 10–20% lower pressure drop compared to Raschig rings of the same size (Liu et al., 2015). Their geometry ensures better liquid distribution and reduced risk of dry spots, which contributes to higher efficiency and stable operation in large-diameter columns.
When sourcing metal pall rings, several factors should be evaluated:
Material Certification – Ensures corrosion resistance and mechanical integrity.
Dimensional Accuracy – Precise sizing improves column packing efficiency.
Availability of Different Sizes – Typical sizes range from 16 mm to 76 mm, allowing flexibility in design.
After-Sales and Technical Support – Guidance on packing selection and column design enhances process reliability.
Wangdu (Hebei) Chemical Engineering Co., LTD manufactures and supplies metal pall ring packing with controlled quality standards. The company’s products are applied in absorption, stripping, and distillation systems across chemical, petrochemical, and environmental engineering industries, focusing on reliable performance and adaptability to different operating conditions.
According to market research, the global random packing market is projected to grow at a CAGR of around 4–5% from 2023 to 2028, supported by increasing demand for energy-efficient separation technologies and stricter environmental regulations (MarketsandMarkets, 2023). Metal pall rings continue to be one of the most widely used random packing types due to their performance balance of efficiency, durability, and cost-effectiveness.
Metal pall ring packing combines mechanical strength, efficiency, and flexibility in mass transfer operations. Suppliers such as Wangdu (Hebei) Chemical Engineering Co., LTD play an important role in providing high-quality packing materials that meet industrial separation and purification needs.
Liu, X., Zhang, Y., & Chen, L. (2015). Performance comparison of random packing types in distillation and absorption operations. Industrial & Engineering Chemistry Research, 54(23), 6052–6060.
MarketsandMarkets. (2023). Random Packing Market – Global Forecast 2023–2028.
