Kobold NBK-ATEX, Operating Instructions Manual

Page: 33 / 57

NBK-03 to -33 ATEX
NBK-03 to -33 ATEX K10/0322 page 33
NBK-31/32/33 roller/ball indicator
Pressure-/temperature-assignment for flange made of stainless steel
DIN EN 1092-1:2008-09 (extract)
PN
Material maximum allowable temperature TS in °C
RT 100 150 200 250 300 350 400
1.4571
(15EO)
Maximum allowable pressure PS in bar
6 6.0 6.0 5.8 5.6 5.3 5.0 4.8 4.6
16 16.0 16,0 15.6 14.9 14.1 13.3 12.8 12.4
40 40.0 40.0 39.2 37.3 35.4 33.3 32.1 31.2
63 63.0 63.0 61.8 58.8 55.8 52.5 50.7 49.2
100 100.0 100.0 98.0 93.3 88.5 83.3 80.4 78.0
160 160.0 160.0
250 250.0 250.0
320 320.0 320.0
Remarks:
RT = 10 °C up to +50°C
TS = maximum allowable temperature in °C, temperature which is defined by pressure equipment manufacturer, for which
the pressure equipment is designed.
PS = maximum allowable pressure, pressure which is defined by pressure equipment manufacturer, for which the plant is
designed. 1.4571 (15E0) was calculated with help of creep resistance values of 100 000 h acc. to EN-Material Norms
considering the safety value.
At intermediate temperatures e.g. 120 °C, a linear interpolation is to be carried out between 2 following creep resistance
values, e.g. of 100 °C and 150 °C.
The pressure/temperature assignment is valid for the following flange models with sizes up to DN 100 used by KOBOLD.
Model No. and nomination: 05 Blind flange, 11 Welding neck flange