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Metal Pall Ring

Pall Ring

Pall Ring

It is one of the most common and well-known packing. It is made of a metal thin sheet and have special structure, there are two row window with ligules towards inside on the ring wall, each row window has five ligules bend to inside of the ring and point to center, at which the ligules touch each other, the position of up and down window is stagger, usually the area of window is about 30% of the whole ring area. The window on the ring wall let distribution and mass transfer efficiency of liquid and gas inside packing better than Raschig Ring.

Table 1: The Technical Parameter of Metal Pall Ring
Size
(mm)
Bulk Density 304
(kg/m3)
Number
(n/m3)
Surface Area
(m2/m3)
VoidageDry Packing Factor
(m-1)
16 348 201000 344 95.5% 393.2
25 439 53500 219 94.2% 244.1
38 328 15000 146 95.9% 154.6
50 315 6500 108 96.8% 130.5
76 265 1920 69 97.4% 79.6
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13936_22__CAR/SIC__EPDM__304__G60
Mechanical seal R-MG1 22, CAR/SIC, EPDM, 304, G60
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