Column Packing - Raschig Rings
 Raschig rings upto 25mm are of Neutral glass. 40mm and 50mm raschig rings are available only in Borosilicate glass
| Cat.Ref. | Size | Bulk Density Kg/Ltr | Specific Surface m' / m' | Glass | | FC9 | 9x9 | 0.6 | 500 | Neutral | | FC12 | 12x12 | 0.5 | 400 | Neutral | | FC15* | 25x25 | 0.3 | 300 | Neutral | | FC25* | 25x25 | 0.3 | 200 | Neutral | | FCB40 | 40x40 | 0.3 | 160 | Borosilicate | | FCB50 | 50x50 | 0.32 | 120 | Borosilicate |
Packings require for various pipe sections (Kgs.) | Pipe Section | Packing Size | | Vol (L) | FC | FC12 | FC15/td> | FC25 | FCB40 | FCB50 | | PS3/1000 | 5 | 3 | 3 | 2 | - | - | - | | PS4/1000 | 8 | - | 4 | 3 | 3 | - | - | | PS6/1000 | 18 | - | 9 | 7 | 7 | - | - | | PS9/1000 | 37 | - | - | 15 | 15 | 15 | - | | PS12/1000 | 66 | - | - | 17 | 30 | 25 | - | | PS16/1000 | 125 | - | - | | 65 | 50 | 53 | | PS18/1000 | 165 | - | - | - | 90 | 65 | 70 | | PS24/1000 | 295 | - | - | - | - | 115 | 125 |
Notes of use of Column Packing - Due to their low bulk densities, Glass Raschig ring are particularly suitable for packing glass columns.
- Generally, the ratio of Column diameter to packing diameter should not be less than 8:1
- When using smaller packing size, a small layer of larger packing should be used on packing support, to prevent the smaller packing falling through.
- In vacuum application and application involving high vapour velocities packing may be lifted and may damage to other parts. To prevent this a packing retainer (PTFE perforated plates) should be used above the packed section.
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New Delhi-110087(INDIA)
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