Emerson Rosemount 5408 Reference Manual page 175

Reference Manual
00809-0100-4408
Table A-9: Alloy C-276 (UNS N10276) Flanges
Item
Bolting material
Gasket
Flange material
Hub material
Table A-10: Alloy 400 (UNS N04400) Flanges
Item
Bolting material
Gasket
Flange material
Hub material
A.2.9 Air purging
An air purge connection can prevent clogging of the antenna in extreme applications with
dirt or heavy coating. To determine if air purging is needed, inspect the tank internal
conditions at the location intended for the transmitter. If there is normally a thick layer of
product build-up there, air purging is most likely needed. Typical purging media to use is
air.
All parabolic antennas come with an integrated air purge connection (see
Rosemount 5408 and 5408:SIS Level Transmitters
ASME
UNS N10276
Soft (1a) with min. thickness 1.6 mm
or
Spiral wound gasket with nonmetallic filler
(1b)
SB462 Gr. N10276 (solution annealed condition) or SB575 Gr. N10276 (solution
annealed condition)
SB574 Gr. N10276 (solution annealed condition)
ASME
UNS N04400
Soft (1a) with min. thickness 1.6 mm
or
Spiral wound gasket with nonmetallic filler
(1b)
SB/B564 Gr. N04400 (solution annealed condition) or SB/B127 Gr. N04400 (solution
annealed condition)
SB164 Gr. N04400 (solution annealed condition)
Specifications and reference data
EN, JIS
UNS N10276
Soft (EN 1514-1) with min. thickness 1.6
mm
or
Spiral wound gasket with nonmetallic filler
(EN 1514-2)
EN, JIS
UNS N04400
Soft (EN 1514-1) with min. thickness 1.6
mm
or
Spiral wound gasket with nonmetallic filler
(EN 1514-2)
Figure
February 2020
A-9).
175