KROHNE BM 70 M - Manual (Page 27)

BM 70 M 27
7.4.2 Flange system
(Antenna, extensions and flange or flange plating)
Available materials for BM 70 M flange systems (in contact with the product):
Version V96 antenna or Wave-Guide:
Material DIN No. AISI equivalent
Stainless steel 1.4571 316 Ti
Stainless steel 1.4435 316 L
Hastelloy C4 2.4610 -
Hastelloy B2 2.4617 -
Titanium 3.7035 -
Tantalum -
-
Monell 400 2.4360 -
Inconell 600 2.4816 -
(Information on other materials supplied on request)
Version SA:
Material DIN No. AISI equivalent
Stainless steel 1.4435 316 L
7.4.3 Seals and gaskets
Temperature limitations due to Ex approval; see Part 2 of this installation and operating
instructions.
Responsibility as to suitability rests solely with the user.
Available materials for internal device seals and gaskets in the flange system in contact with the
product:
Version V96:
Material Temperature resistance
FFKM (Kalrez 4079 or Parofluor V8545-75) 250°C/482°F (safety limit 280°C / 536°F)
DuPont Kalrez 2035 210°C/410°F
Viton (FPM) 200°C/392°F
FEP-coated 200°C/392°F
Version SA:
Material Temperature resistance
FPM (Viton) 200°C/392°F
Kalrez 6375
(others optional) 250°C/482°F
PTFE is also in contact with product.
7.5 Process connection
The process connection is by way of standard flanges sized DN 80-200 or equivalent ANSI sizes
(dependent on the version).