Page 261 - Applied Process Design For Chemical And Petrochemical Plants Volume II

250 Applied Process Design for Chemical and Petrochemical Plants

Table 94
Metal Lessing Rings
..... - .....
-.
Wall O.D. and Approximate Approximate Approximate Percent Equivalent
Size, Thickness, Length, Number per Weight per Surface Area Free Gas Spherical
In. In. In. Fts Ft3, Lb* F2/Ft3 Space Dia., Dp, In.
w Mn w 81,840 195 306.8 60 0.24
x Mn M 25,110 114 217.1 76 0.31
w Mn w 10,974 100 166.4 81 0.38
% %6 M 10,230 172 153.4 66 0.46
M Mn 56 6,789 86 145.6 82 0.43
.is %6 56 6,510 150 138.4 68 0.57
w Mn w 3,171 71 108.3 85 0.52
% %6 w 2,967 130 93.3 71 0.63
1 M2 1 1,339 32 81.5 90 0.62
1 %6 1 1,251 95 73.7 80 0.77
1% %6 1% 674 81 64.1 82 0.99
1% K6 1% 391 65 53.6 87 1.02
1% %6 1% 246 58 46.0 89 1.13
2 %6 2 167 49 40.8 90 1.24
..... ._
All figures are on a dumped basis. Metal Lessing Rings are also made in stainless steel, copper, and aluminum.
*Weights shown are for carbon steel. By permission: U.S. Stoneware Co. Bul. TP54, now, Norton Chemical Process Products Corp., Stow, OH. [5]
except column 8, [MI.

Table 95
Ceramic Lessing Rings
...... .....
O.D. and Wall Approx. No. of Approx. Wt. Per Percent ApProX. Equiv. Spher.
Le*, Thicknw, Rings per Ft3, Ft3 Free Gas Surface Area Diameter
In. In. Dumped Dumped Space per Ff? Dp, In.
....... -
1 M 1,300 50 66 69 0.95
1% %6 650 56 62 33 1.20
1% % 350 58 60 40 1.55
2 36 150 49 68 32 1.90
........... -. ....... ..
From hi. Leva, U.S. Stoneware Co., [40], by permission, now, Norton Chemical Process Products Corp., Stow, OH.

Table 9-6A
Chemical Stoneware and Ceramic Berl Saddle Packing
Approx Average Equivalent
Nominal Approx. Average Approx. Surface Area Percent Free Spher. Dim.
Size Number/Ft3 Wt./Ft3, lb Ft2/F$ Gas Space* Dp, In-
% 113,000 56 274 60-67 0.23
% 16,200 54 142 63 0.42
% 5,000 48 82 66 0.58
1 2,200 45 76 69-70 0.76
1% 580 38 44 73-75 1.10
2 250 40 32 72-75 1.55
... - .- - .... .... .
From M. Len, U.S. Stoneware Co., [40], by permission.
*Updated by permission Jaeger Products, Inc.