MT Series DryLine
®
Dehydrator User Manual
12
System Volumes, Times to Purge and Pressurize
Line Type
Volumes
Time to Purge 1000 ft (305 m)
in Hours per 3 Volumes
Time to Pressurize to
Operating Pressure In Hours
Per 1000 ft (305 m
2
.)
ft
3
per1000 ft
liters per
1000m
MT1000
MT2000
MT1000
MT2000
HELIAX Coaxial Cable, Pressurized to 5 lb/in
2
(35 kPa)
3"
36.7
3410
1.64
0.82
.184
.092
4"
69.9
6494
3.12
1.56
.352
.176
5"
117.0
10870
5.20
2.60
.588
.294
HELIAX Elliptical Waveguide, Pressurized to 5 lb/in
2
(35 kPa)
EW34
25.0
2323
1.112
0.556
0.124
0.062
EW28
36.0
3345
1.6
0.8
0.360
0.090
EW20
60.5
5621
2.688
1.344
0.304
0.152
EW17
71.0
6596
3.156
1.578
0.356
0.178
Circular Waveguide, Pressurized to 5 lb/in
2
(35 kPa)
WG269
39.5
3670
1.756
0.878
0.200
0.100
WC281
43.1
3746
1.916
0.958
0.216
0.108
Rigid Transmission Line, Pressurized to 5 lb/in
2
(35 kPa)
3-1/8”
48.7
4524
2.164
1.082
0.244
0.122
4-1/16”
84.0
7804
3.732
1.866
0.424
0.212
6-1/8”
194.0
18023
8.624
4.312
0.976
0.488
8-3/16”
347.0
32236
15.424
7.712
1.748
0.874
Guideline Waveguide for UHF-TV, Pressurized to 2 lb/in
2
(14 kPa)
GLW1350
994
92343
44.16
22.08
2.000
1.000
GLW1500
1227
113988
54.52
27.26
2.480
1.240
GLW1700
1576
146410
70.04
35.02
3.200
1.600
GLW1750
1670
155143
74.24
37.12
3.36
1.68
Caution:
uMx-459, -465,-611 and HPX12-6511Cand
P-186 Antennas have lowerpressure
ratings than the Antennasas indicated in
the chart below.
Maximum pressure ratings for reference only,
contact the antenna groupfor actual pressure
ratings. Specificfeeds and pressure windows may
havereduced pressure ratings.
Antenna
Max. PressureRating,
lb/in2 (kPa)
uMx-459
5 (35)
UMx-611
5 (35)
HPX12-6511C
5 (35)
P-186
2 (14)
2 GHz Antennas
3 (21)
These Line Types are for refernce only. Please go
to commscope.com and use the "Pressurization
Calculation" program.
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