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Pingxiang Daier Separation TechSep 3, 202618 min read

Metal Raschig Ring Size Selection: How to Choose from 6 to 89 mm

Metal Raschig Ring is available in DAIER's catalog-confirmed 6–89 mm series, with specific surface area decreasing from approximately 904 to 61 m²/m³ and dry packing factor decreasing from about 1,307 to 66 m⁻¹. Although larger sizes generally create a coarser and more hydraulically open bed, void fraction and bulk density are not perfectly monotonic, so final selection should consider mass-transfer duty, hydraulics, fouling, tower diameter, alloy and support-grid compatibility.
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Pingxiang Daier Separation TechSep 3, 202617 min read

Ceramic Raschig Ring Size Selection: How to Choose from 6 to 100 mm

Ceramic Raschig Ring is available in DAIER's verified catalog from approximately 6 to 100 mm. Although smaller sizes generally provide greater surface-area density and larger sizes create a coarser bed, void fraction, bulk density and packing factor are not perfectly monotonic, making supplier-specific data essential for hydraulic, fouling, tower-diameter and retrofit decisions.
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Pingxiang Daier Separation TechSep 3, 202618 min read

Ceramic Intalox Saddle 13 vs 19 vs 25 vs 38 vs 50 vs 76 mm: How Size Changes Surface Area, Voidage and Packing Factor

Ceramic Intalox Saddle is available in DAIER's catalog-confirmed standard series from 13 to 76 mm, with specific surface area decreasing from approximately 650 to 95 m²/m³ and dry packing factor decreasing from 420 to 127 m⁻¹. Final size selection should consider surface area, non-monotonic void fraction, bed weight, hydraulic requirements, fouling, tower diameter and support-grid compatibility, while keeping standard Intalox Saddle separate from Ceramic Super Intalox Saddle.
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Pingxiang Daier Separation TechSep 3, 202616 min read

Metal Cascade Mini Ring 0P to 5P: How to Select the Right Model for Surface Area, Voidage and Hydraulic Openness

Metal Cascade Mini Ring is available in DAIER's catalog-confirmed 0P-to-5P series, with specific surface area decreasing from approximately 427 to 65 m²/m³ while void fraction increases from 94% to about 98% and dry packing factor falls from 55 to 7 m⁻¹. Model selection should balance mass-transfer demand, hydraulic capacity, fouling, tower diameter, alloy compatibility and support-grid requirements rather than automatically choosing the smallest or largest model.
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Pingxiang Daier Separation TechSep 2, 202616 min read

Ceramic Mini Lessing Ring 10 vs 50 vs 80 vs 100 vs 120 vs 150 mm: How to Select the Right Size

Ceramic Mini Lessing Ring is represented in DAIER's verified database from 10 to 150 mm, with specific surface area decreasing from approximately 420 to 60 m²/m³ and dry packing factor decreasing from 1,250 to 101 m⁻¹. Final size selection should balance mass-transfer requirements, hydraulics, fouling, tower diameter, ceramic bed weight and support-grid compatibility rather than simply choosing the smallest or largest model.
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