VEGA VEGAFLEX 81 4 … 20 mA_HART - four-wire Coax probe - Manual (Page 65)

65
11 Supplement
VEGAFLEX 81 • 4 … 20 mA/HART - four-wire
42280-EN-130314
11 Supplement
11.1 Technical data
General data
316L corresponds to 1.4404 or 1.4435
Materials, wetted parts
Ʋ Process fitting 316L and Aluminium oxide-ceramic 99.7 % (Al
2
O
3
),
Hastelloy C22 (2.4602) and Aluminium oxide-ceramic
99.7 % (Al
2
O
3
)
Ʋ Process seal on the instrument side
(rod leadthrough)
FKM (SHS FPM 70C3 GLT), FFKM (Kalrez 6375),
EPDM (A+P 75.5/KW75F)
Ʋ Process fitting - for ammonia applica-
tions
316L
Ʋ Process seal on the instrument side -
for ammonia applications
Borosilicate glass GPC 540 1)
Ʋ Process seal On site (instruments with thread: Klingersil C-4400 is
attached)
Ʋ Inner conductor (up to the separation
rod)
316L
Ʋ Tube: ø 21.3 mm (0.839 in) 316L or Hastelloy C22 (2.4602)
Ʋ Tube: ø 42.2 mm (1.661 in) 316L or Hastelloy C22 (2.4602)
Materials, non-wetted parts
Ʋ Plastic housing plastic PBT (Polyester)
Ʋ Aluminium die-casting housing Aluminium die-casting AlSi10Mg, powder-coated - basis:
Polyester
Ʋ Stainless steel housing - precision
casting
316L
Ʋ Stainless steel housing, electropol-
ished
316L
Ʋ Second line of defence (optional) Borosilicate glass GPC 540
Ʋ Seal between housing and housing
cover
NBR (stainless steel housing, precision casting), silicone
(aluminium/plastic housing; stainless steel housng,
electropolished)
Ʋ Inspection window in housing cover
(optional)
Polycarbonate (with Ex d version: glass)
Ʋ Ground terminal 316L
Ohmic contact Between ground terminal, process fitting and probe
Process fittings - tube: ø 21.3 mm (0.839 in)
Ʋ Pipe thread, cylindrical (ISO 228 T1) G¾, G1, G1½ according to DIN 3852-A
Ʋ American pipe thread, conical
(ASME B1.20.1)
¾ NPT, 1 NPT, 1½ NPT
Ʋ Flanges e.g. DIN from DN 25, ANSI from 1"
Process fittings - tube: ø 42.2 mm (1.661 in)
1) Not suitable for steam applications