KROHNE OPTISONIC 3400 EN - Manual (Page 114)

8
TECHNICAL DATA
114
OPTISONIC 3400
www.krohne.com 11/2013 - 4002037702 - HB OPTISONIC 3400 -en-R02
8.4 Pressure derating
EN 1092-1
A = Carbon steel C22.8 / B = Stainless steel 1.4404
Figure 8-2: X = Temperature [°C] / Y = Pressure [bar]
1 PN63
2 PN40
3 PN25
4 PN16
5 PN10
6 PN6
For temperatures down to -25°C, other materials are available on request.
ASME B16.5
A = Carbon steel ASTM A105N / B = Stainless steel SS 316L
Figure 8-3: X = Temperature [°F] / Y = Pressure [psi]
1 1500 lb
2 900 lb
3 600 lb
4 300 lb
5 150 lb
Carbon steel flanges are limited to -29°F. For lower temperatures, low temperature carbon steel (LTCS) is used. Below -
56°F stainless steel is used