Deltabar S
Endress+Hauser 37
Process connection FMD 78
(with metallic measuring
diaphragms)
Note!
• Specifications for the "T
K
Process" are listed in the following tables. These temperature coefficients apply to
silicone oil and the membrane material AISI 316L. 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
page 46, section "Diaphragm seal filling oils".
• The temperature coefficient "T
K
Ambient" is listed in relation to the capillary length on page 47 in the
"Influence of the temperature on the zero point for diaphragm seal systems" section.
• The weights of the diaphragm seals are given in the tables. See page 28 for the weight of the transmitter and
page 44 for the weight of the housing.
Diaphragm seal cell structure
P01-FMD78xxx-06-09-xx-xx-000
Process connection FMD 78, material AISI 316L
D
b
d
M
Flange Diaphragm seal
Version Nominal
diameter
Nominal
pressure
1
Diameter Thickness Diaphragm
diameter
T
K
Process
Minimum
installation
distance
Weight of two
diaphragm
seals
Db d
M
A
[mm] [mm] [mm] [mbar/10K] [mm] [kg]
UF DN 50 PN 16-400 102 20 52 +1.21 130 2.6
UH DN 80 PN 16-400 136 20 80 +0.19 130 4.6
UJ DN 100 PN 16-400 158 20 80 +0.19 130 6.2
Flange Diaphragm seal
Version Nominal
diameter
Nominal
pressure
1
Diameter Thickness Diaphragm
diameter
T
K
Process
Minimum
installation
distance
Weight of two
diaphragm
seals
Db d
M
in lb/sq.in in
[mm]
in
[mm]
in
[mm]
[mbar/10K] in
[mm]
lbs
[kg]
VF 2 150-2500 4.02
[102]
0.79
[20]
2.05
[52]
+1.21 5
[130]
6
[2.6]
VH 3 150-2500 5.35
[136]
0.79
[20]
3.15
[80]
+0.08 5
[130]
10
[4.6]
VJ 4 150-2500 6.22
[158]
0.79
[20]
3.15
[80]
+0.19 5
[130]
14
[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 page 26, section "Pressure specifications".
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