Desiccants Data & Conversion Charts

SilicaGel vs ZEOZORB SilicaGel vs ZEOZORB desiccant Adsorption at temperature dew point SilicaGel vs ZEOZORB Desiccant Moisture adsorption rates SilicaGel vs ZEOZORB moisture pickup rate
SilicaGel vs ZEOZORB SilicaGel vs ZEOLITES Desiccant Adsorption at Temperature and Dewpoint SilicaGel-vs-ZEOLITES-Desiccant Moisture Adsorption Rates SilicaGel vs ZEOLITES Moisture Pickup Rate 0-10%

 

It is imperative that electrical, electronic, and optical equipment be kept moisture free to ensure proper system operation and reliability. Contaminants and moisture in compressed air or gas systems will degrade and cause failure of equipment.

Below are a selection of charts that you may find useful when considering moisture issues.

Flow RatePressureTemperature TableGas ConstantsConcentration Equivalents Temperature ConversionDew Point vs Parts Per Million

Flow Rate
From/to lit/sec gal/min ft 3 /sec ft 3 /min bbl/hr bbl/day
lit/sec 1 15.85 0.03532 2.119 22.66 543.8
gal/min 0.06309 1 0.00223 01337 1.429 34.3
ft 3 /sec 28.32 448.8 1 60 641.1 1.54X104
ft 3 /min 0.4719 7.481 0.01667 1 10.69 256.5
bbl/hr 0.04415 0.6997 0.00156 0.09359 1 24
bbl/day 0.00184 0.02917 6.50X10-5 0.0039 0.04167 1
Pressure
from/to mmHg in Hg in H 2 0 ft H 2 0 atm lb/in 2 kg/cm 2
mmHg 1 0.03937 0.5353 0.446 0.00132 0.01934 0.00136
in Hg 25.4 1 13.6 1.133 0.03342 0.4912 0.03453
in H 2 0 1.868 0.07355 1 0.08333 0.00246 00.03613 0.00254
ftH 2 0 22.42 0.8826 12 1 0.0295 0.4355 0.03048
atm 760 29.92 406.08 33.9 1 14.7 1.033
lb/in 2 51.71 2.036 27.67 2.307 0.06805 1 0.07031
kg/cm 2 735.6 28.96 393.7 32.81 0.9678 14.22 1
Temperature
° C ° F ° C ° F ° C ° F ° C ° F
-273.15 -459.67 25 77 240 464 540 1004
-260 -436 30 86 250 482 550 1022
-240 -400 35 95 260 500 560 1042
-220 -364 40 104 270 518 570 1058
-200 -328 45 113 280 536 580 1076
-180 -292 50 122 290 554 590 1094
-160 -256 55 131 300 572 600 1112
-140 -220 60 140 310 590 610 1130
-120 -184 65 149 320 608 620 1148
-100 -148 70 158 330 626 630 1166
-80 -112 75 167 340 644 640 1184
-70 -94 80 176 350 662 650 1202
-65 -85 85 185 360 680 660 1220
-60 -76 90 194 370 698 670 1238
-55 -67 95 203 380 716 680 1256
-50 -58 100 212 390 734 690 1274
-45 -49 110 230 400 752 700 1292
-40 -40 120 248 410 770 710 1310
-35 -31 130 266 420 788 720 1328
-30 -22 140 284 430 806 730 1346
-25 -13 150 302 440 824 740 1364
-20 -4 160 320 450 842 750 1382
-15 5 170 338 460 860 760 1400
-10 14 180 356 470 878 770 1418
-5 23 190 374 480 896 780 1436
0 32 200 392 490 914 790 1454
5 41 210 410 500 932 800 1472
10 50 212 414 510 950 810 1490
15 59 220 428 520 968 820 1508
20 68 230 446 530 986 830 1526
Gas Constants
Numerical Constant Value Unit of Measurement
Volume of Ideal Gas at STP 22.414 L Liters, 0°C, 1 atm.
Volume of Ideal Gas at NTP 24.416 L Liters, 70°F, 1 atm.
Avogadro's Number 6.0221367 x 1023 molecules/gm-mole
Desnity of Air (STP) 1.2928 grams/liters
Gas Law Constant, R 1.98719 cal/(gm-mol)(°K)
  82.568 (cm 3 )(atm)/(gm-mol)(°K)
Concentration Equivalents
Multiply ppt ppb ppm %
parts per trillion, ppt
1
0.001
0.000001
1.00E-10
parts per billion, ppb
1,000
1
0.001
1E-07
parts per million, ppm
1,000,000
1,000
1
0.0001
Percent, %
10,000,000,000
10,000,000
10,000
1
Temperature Conversion
Multiply °C, Celsius °F, Fahrenheit °K, Kelvin °R, Rankin
Celsius, °C 1 9/5(C) + 32 °C + 273.15 (°C +273.15)1.8
Fahrenheit, °F (°F-32)(5/9) 1 (°F-32)(5/9)+273.115 °F + 459.67
Kelvin, °K °K-273.15 (°K-273.15)1.8+32 1 (°K)1.8
Rankin, °R (°R/1.8)-273.15 °R-459.67 °R/1.8 1
Moisture in Gases - Approximate Relationships
Dewpoint PPM on Volume Basis
°C °F
-90 -130 .0923
-88 -126 .134
-66 -123 .184
-84 -119 .263
-82 -116 .382
-78 -112 .526
-76 -108 .747
-74 -105 1.01
-72 -101 1.38
-70 -98

1.88

-68 -94

2.55

-66 -90 3.44
-64 -87 4.60
-62 -83 6.10
-60 -80 8.07
-58 -78 10.6
-56 -72 14.0
-54 -69 18.3
-52 -65 23.4
-50 -62 31.1
-48 -58 39.4
-46 -54 49.7
-44 -51 49.7
-42 -47 63.2
-40 -44 80.0
-38 -40 101.
-36 -36 127.
Back to top  
-34 -33 159.
-32 -29 198.
-30 -26 249.
-28 -22 309.
-26 -18 376.
-24 -15 462.
-22 -11 566.
-20 -8 691.
-18 -4 841.
-15 0 1,020.
-14 +3 1,230.
-12 +7 1,490.
-10 +10 1,790.
-8 +14 2,140.
-6 +18 2,560.
-4 +21 3,060.
-2 +25 3,640.
0 +28 4,320.
+2 +32 5,100.
+4 +36

6,020.

+6 +39 7,060.
+8 +42

8,130.

+10 +46 9,370.
+12 +50 10,720.
+14 +54 12,280.
+16 +57 14,140.
  +60 15,980.
    18,160