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One heat exchanger
Model PKE 511
Nominal cooling capacity (at 77 °F)
Max. ambient temperature
Dew point noise static
Drift over full range
1 20
1 00
80
60
40
20
0
40
50
60
70
Am bient tem perature in °F
Model PKE 521
Nominal cooling capacity (at 77 °F)
Max. ambient temperature
Dew point noise static
Drift over full range
1 20
1 00
80
60
40
20
0
40
50
60
70
80
Am bient tem perature in °F
:
Note
The limits in the diagrams for the PTG, PTV respectively MTV are for a dew point of 104 °F.
Heat Exchanger
The energy content of the sample gas and, as a result, the required cooling capacity of the gas cooler is determined by 3
parameters: gas temperature
content (heat) of the gas. The required cooling capacity is determined by the maximum acceptable level of the outlet dew point.
The following table shows cooler performance assuming the following conditions: =120 °F and
lpm cooled air (i.e. after the moisture has condensed). With other dew points and gas inlet temperatures the values may differ.
Please contact one of Buhler's application specialists for assistance and further information.
Heat exchanger
1)
Flow rate v
max
t
1)
Inlet dew point
e,max
J
1)
Gas inlet temp.
G,max
Max. cooling capacity Q
max
Gas pressure p
max
D
Pressure drop p (v=2.5 lpm)
Dead volume
Sample gas connections (metric)
(US)
Condensate outlet connection (metric)
1)
onsider the maximum cooling capacity of cooler
C
2)
Types marked "I" have NPT-threads or US tubes, respectively
3)
Heat exchangers MTS, MTG and MTV cannot be automatically drained
4)
Inner diameter gasket
DA 440012
10/2013
Page 3/4
95 Btu/hr
104 °F
± 0.18 °F
± 2.7 °F
PKE
fitted
w ith
PTS
Limit for
PTG
and
80
90
1 00
PTV
85 Btu/hr
122 °F
± 0.18 °F
± 2.7 °F
PKE
fitted
w ith
PTS
Limit
PTG
and
90
1 00 1 1 0 1 20
PTV
J
t
, dewpoint
(moisture content) and flow v. The outlet dew point rises with increasing energy
G
e
PTS
2)
PTS-I
7.5 lpm
150 °F
356 °F
142 Btu/hr
2320 psi
0.15 psi
1.8 cu. in.
1.8 cu. in.
Swagelok
GL 14 (0.2 in.)
0.2 in.
1/4"
GL 14 (1/4")
G 3/8"
GL 25 (0.5 in.)
(US)
NPT 3/8"
GL 25 (1/2")
Two heat exchangers
Model PKE 512
Nominal cooling capacity (at 77 °F)
Max. ambient temperature
Dew point noise static
Drift over full range
Temperature differential between
heat exchangers
1 20
1 00
80
60
40
20
0
40
50
Am bient tem perature in °F
Model PKE 522
Nominal cooling capacity (at 77 °F)
Max. Ambient temperature
Dew point noise static
Drift over full range
Temperature differential between
heat exchangers
1 20
1 00
80
60
40
20
0
40
50
60
Am bient tem perature in °F
t
e
PTG
PTV
2)
PTG
PTV-I
4.2 lpm
4.2 lpm
150 °F
150 °F
284 °F
284 °F
85 Btu/hr
85 Btu/hr
43 psi
29 psi
0.15 psi
0.15 psi
3.5 cu. in.
4
)
DN 4/6
4
)
1/4"-1/8"
4
)
G 3/8"
4
)
NPT 3/8"
95 Btu/hr
104 °F
± 0.18 °F
± 2.7 °F
< 0.9 °F
60
70
80
90
1 00
85 Btu/hr
122 °F
± 0.18 °F
± 2.7 °F
< 0.9 °F
70
80
90
1 00 1 1 0 1 20
J
=160 °F. Indicated is the v
G
3)
3)
G
MTS
MT
2) 3)
3)
MTS-I
MTG
5 lpm
3.5 lpm
150 °F
150 °F
284 °F
284 °F
90 Btu/hr
76 Btu/hr
363 psi
43 psi
0.29 psi
0.28 psi
1.2 cu. in.
1.1 cu. In.
tube 0.2 in.
GL14 (0.2 in.)
tube 1/4"
GL14 (1/4")
G 1/4"
GL18 (0.3 in.)
NPT 1/4"
Gl18 (0.3 in.)
PKE
fitted
w ith
2xMTS
Limit for
2xMTG
Limit for
2xMTV
PKE
fitted
w ith
2xMTS
Limit for
2xMTG
Limit for
2xMTV
in
max
3)
MTV
2) 3)
MTV-I
3.2 lpm
150 °F
284 °F
62 Btu/hr
29 psi
0.26 psi
1.0 cu. in.
DN 4/6
1/4"-1/8"
G 1/4"
NPT 1/4"
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