Endress+Hauser Deltabar S PMD75 - Process Connection FMD78 with Metallic Process Isolating Diaphragm

Deltabar S
Endress+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  ä 59 ff, section "Diaphragm seal filling
oils".
• The temperature coefficient "T
K
Ambient" is listed in relation to the capillary length on  ä 60 in the
"Influence of the temperature on the zero point" section.
• The weights of the diaphragm seals are given in the tables. See  ä 33 for the weight of the transmitter
and  ä 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
Db 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
Db 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  ä 29, section "Pressure specifications".