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Design and principle of operation
Table 1: Diaphragm seals for general use, use with oxygen or flammable gases
Diaphragm seal for ...
Style
Process fluid connection
Pressure rating
Top section material
Bottom section
with process
Material of
fluid connection
wetted
components
Diaphragm
Gasket
Filler liquid
Cleaning
Attachment
Temperature range of medium
Flame arrester
Weight
Max. 30 bar medium pressure
1)
Max. medium pressure depending on the measuring range of the Type 3435 Transmitter Module (see section 11)
2)
Without centering spigot, with 10 mm duct borehole
3)
24
General use
Top and bottom
sections fastened
together, inside
diaphragm
G ½ female thread
PN 100
2)
CrNiMo steel 1.4404 (316L)
Titanium
3.7035
Titanium
3.7035
PTFE
Silicone oil AK 50
Standard
Using 2 m capillary
tube, CrNiMo steel
–35 to +150 °C
–
4.5 kg
Gaseous oxygen
Measuring ranges up to
25 bar
Top and bottom sections
fastened together, inside
diaphragm
G ½ B male thread
PN 40
1)
CrNiMo steel 1.4404 (316L)
CrNiMo steel 1.4435 (316L)
FPM (Viton VR1)
Halocarbon FO1 (6.3)
Free of oil and grease,
DIN EN 12300-O2,
A.2 and A.3
Direct
–20 to +60 °C
1.8 kg
Flammable gases
Compliant with
NACE MR 0175
Top and bottom
sections, diaphragm
welded together, inside
diaphragm
G ½ B male thread
3)
PN 250
2)
–
Silicone oil FA2
Standard
Adapt-FS flame arrester
according to DIN EN
ISO 16852, explosion
protection:
IIG IIC, EC type
examination certificate:
PTB 12 ATEX 4001 X
1.0 kg
EB 7030 EN
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