TECHNICAL DATA
8
81
H250 M40
www.krohne.com
03/2020 - 4000640706 - MA H250-M40 R06 en
8.2.3 Pressure tightness (vacuum) H250/C
Maximum product temperature in
°
F
T
amb
< +104
°
F
T
amb
< +140
°
F
1
EN
ASME
Version with
Standard HT
Standard HT
DN15,
DN25
1/2", 1"
ESK4A, ESK4-FF, ESK4-PA
392
572
356
572
ESK4-T
392
572
284
554
Limit switch NAMUR
392
572
392
572
Limit switch 3-wire
392
572
266
563
DN50
2"
ESK4A, ESK4-FF, ESK4-PA
392
572
165
572
ESK4-T
392
572
284
554
Limit switch NAMUR
392
572
392
572
Limit switch 3-wire
392
572
248
383
DN80,
DN100
3", 4"
ESK4A, ESK4-FF, ESK4-PA
392
572
302
482
ESK4-T
392
572
266
518
Limit switch NAMUR
392
572
392
572
Limit switch 3-wire
374
572
230
320
Table 8-6: Maximum product temperature in
°
F
1
If there are no heat insulation measures, a heat-resistant cable is necessary (continuous operating temperature of the cable to be
used: +212
°
F)
Max. process temperature
+70
°
C / +158
°
F
+150
°
C / +302
°
F
+250
°
C / +482
°
F
Min. operating pressure
Nominal size Float
Liner
[mbara] [psia]
[mbara] [psia]
[mbara] [psia]
DN15...100
PTFE
PTFE
100
1.45
-
-
-
-
DN15...80
Ceramic
PTFE
100
1.45
250
3.63
-
-
DN15...80
Ceramic
TFM / Ceramic
100
1.45
100
1.45
100
1.45
Table 8-7: Pressure tightness (vacuum) H250/C