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Pingxiang Daier Separation TechSep 3, 202617 min read

Plastic Teller Rosette Size Selection: 25 vs 47 vs 51 vs 59 vs 73 vs 95 vs 145 mm

Plastic Teller Rosette is available in DAIER's catalog-confirmed 25–145 mm series, with void fraction increasing from approximately 82% to 95% and packing factor decreasing from 488 to 76 m⁻¹. Because the internal rosette configuration changes between models and some physical properties are non-monotonic, final selection should consider exact geometry, mass-transfer demand, hydraulics, fouling, tower diameter and polymer compatibility rather than using size alone.
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Pingxiang Daier Separation TechSep 3, 202616 min read

Metal Nutter Ring Size Selection: 18 vs 25 vs 38 vs 50 vs 65 vs 76 mm

Metal Nutter Ring is available in DAIER's catalog-confirmed 18–76 mm series, with specific surface area decreasing from approximately 230 to 59.6 m²/m³ and dry packing factor decreasing from 244.7 to 61.9 m⁻¹. Final size selection should balance mass-transfer demand, hydraulic capacity, fouling, tower diameter, alloy selection and support-grid compatibility while using the actual supplier-specific free-volume and bulk-density data.
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Pingxiang Daier Separation TechSep 3, 202616 min read

Metal Intalox Saddle Size Selection: 15 vs 25 vs 40 vs 50 vs 60 vs 70 mm

Metal Intalox Saddle / IMTP is available in DAIER's catalog-confirmed 15–70 mm series, with surface area decreasing from approximately 275 to 61 m²/m³ while free volume rises to about 98.7% and dry packing factor falls from 304.9 to 63.5 m⁻¹. Final size selection should balance mass-transfer demand, hydraulic capacity, fouling, tower diameter, metal grade and retrofit compatibility.
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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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