Deltabar S
Hauser
43
Process connection FMD78
with metallic process isolating
diaphragm
Note!
• Specifications for the "T
K
Process" are listed in the following tables. These are typically values. These
temperature coefficients apply to silicone oil and the process isolating diaphragm material AISI 316L/
1.4435. For other filling oils, this temperature coefficient must be multiplied by the T
K
correction factor of
the corresponding filling oil. For the T
K
correction factors, see also
59 ff, section "Diaphragm seal filling
• The temperature coefficient "T
K
Ambient" is listed in relation to the capillary length on
"Influence of the temperature on the zero point" section.
• The weights of the diaphragm seals are given in the tables. See
33 for the weight of the transmitter
and
51 for the weight of the housing.
• The following drawings are drawings that illustrate how the system works in principle. In other words, the
dimensions of a diaphragm seal supplied can deviate from the dimensions given in this document.
Diaphragm seal cell structure
P01-FMD78xxx-06-09-xx-xx-000
Process connection FMD78, material AISI 316L
D
b
d
M
Flange
Diaphragm seal
Version
Nominal
diameter
Nominal
pressure
1
max. Diameter
Thickness
max. Diaphragm
diameter
T
K
Process
Weight of two
diaphragm seals
D
b
d
M
[mm]
[mm]
[mm]
[mbar/10K]
[kg]
UF
DN 50
PN 16-400
102
20
59
+2.00
2.6
UH
DN 80
PN 16-400
138
20
89
+0.20
4.6
UJ
DN 100
PN 16-400
162
20
89
+0.30
6.2
Flange
Diaphragm seal
Version
Nominal
diameter
Nominal
pressure
1
max. Diameter
Thickness
max. Diaphragm
diameter
T
K
Process
Weight of two
diaphragm seals
D
b
d
M
[in]
[lb/sq.in]
[in]
[mm]
[in]
[mm]
[in]
[mm]
[mbar/10K]
[kg]
VF
2
150-2500
4.01
102
0.79
20
2.32
59
+1.25
2.6
VH
3
150-2500
5.35
136
0.79
20
3.50
89
+0.25
4.6
VJ
4
150-2500
6.22
158
0.79
20
3.50
89
+0.19
6.2
1)
The specified nominal pressure applies to the diaphragm seal. The maximum pressure for the measuring device is dependent on the lowest-rated element,
with regard to pressure, of the selected components. See also