Sierra Instruction Manual
MaxTrak 180
41
6.3
Gas Tables and K-Factors
•
If no O-ring material is specified then O-ring to be used is Viton. NEO is neoprene or
equivalent. KR is DuPont Kalrez or equivalent. Valve Seat applies only to controllers.
Actual Gas
Chemical
Symbol
K-factor
Relative
to Air
Cp
(Cal/g)
Density
(g/l) @
70°F
Density
(g/l) @
0°C
1. Elastomers*
O-ring Valve
Seat
Acetylene
C
2
H
2
.581
.4036
1.079
1.162
Air
1.000
.240
1.200
1.293
Allene (Propadiene)
C
3
H
4
.431
.352
1.659
1.787
KR
Ammonia
NH
3
.732
.492
.706
.760
NEO
KR/NEO
Argon
Ar
1.398
.1244
1.655
1.782
Arsine
AsH
3
.671
.1167
3.229
3.478
KR
Boron Trichloride
BCl
3
.411
.1279
4.852
5.227
800 Series Recommended
Boron Trifluoride
BF
3
.511
.1778
2.808
3.025
KR
Boron Tribromide
Br
3
.381
.0647
10.378
11.18
KR
Bromine
Br
2
.812
.0539
6.619
7.130
Bromine Pentafluoride
BrF
5
.261
.1369
7.244
7.803
KR
Bromine Trifluoride
BrF
3
.381
.1161
5.670
6.108
KR
Bromotrifloromethane
(Freon-13 B1)
CBrF
3
.371
.1113
6.168
6.644
1,3-Butadiene
C
4
H
6
.321
.3514
2.240
2.413
Butane
C
4
H
10
.261
.4007
2.407
2.593
1-Butane
C
4
H
8
.301
.3648
2.324
2.503
NEO
KR
2-Butane
C
4
H
8
CIS
.325
.336
2.324
2.503
NEO
KR
2-Butane
C
4
H
8
TRANS
.292
.374
2.324
2.503
Carbon Dioxide
CO
2
.737
.2016
1.835
1.964
Carbon Disulfide
CS
2
.601
.1428
3.153
3.397
Carbon Monoxide
CO
1.002
.2488
1.160
1.250
Carbon Tetrachloride
CCl
4
.311
.1655
6.368
6.860
KR
Carbon Tetrafluoride
(Freon-14)
CF
4
.421
.1654
3.645
3.926
Carbonyl Fluoride
COF
2
.541
.1710
2.734
2.945
Carbonyl Sulfide
COS
.661
.1651
2.488
2.680
Chlorine
CL
2
.862
.114
2.936
3.163
800 Series Recommended
Chlorine Trifluoride
CIF
3
.401
.1650
3.829
4.125
KR
Chlorodifluoromethane
(Freon-22)
CHClF
2
.461
.1544
3.581
3.858
KR
Chloroform
CHCI
3
.391
.1309
4.944
5.326
KR
Chloropentafluoroethane
(Freon-115)
C
2
CIF
5
.241
.164
6.398
6.892
KR
Chlorotrifluromethane
(Freon-13)
CCIF
3
.381
.153
4.326
4.660
KR
Cyanogen
C
2
N
2
.611
.2613
2.156
2.322
KR
Cyanogen Chloride
CICN
.611
.1739
2.545
2.742
Cychlopropane
C
3
H
5
.461
.3177
1.742
1.877
KR
Deuterium
D
2
1.002
.1722
1.670
1.799
Diborane
B
2
H
6
.441
.508
1.147
1.235
KR
Dibromodifluoromethane
CBr
2
F
2
.190
.15
8.691
9.362
KR
Dibromethane
.471
.075
7.204
7.76
KR
Dichlorodifluoromethane
(Freon-12)
CCI
2
F
2
.351
.1432
5.008
5.395
KR
Dichlorofluoromethane
(Freon-21)
CHCl
2
F
.421
.140
4.597
4.952
KR
Summary of Contents for C100L-L-DD-LE-5-OV1-SV1-PV1C-V1-S1
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