40 FLOWSIC500 · Operating Instructions · 8025733/1GMJ/V4-2/2022-07 · © SICK Engineering GmbH
Installation
Subject to change without notice
3.3.2 Choosing flanges, gaskets and other components
For flange connections only use pipeline flanges, bolts, nuts and gaskets suitable for the
maximum operating pressure, maximum operating temperature as well as ambient and
operating conditions (external and internal corrosion).
→ Table 8 contains a list of recommended bolts and → Table 9 contains a list of
recommended gaskets.
For devices with approval according to GOST, → Table 10 contains a list of recommended
bolts and → Table 11 contains a list of recommended gaskets.
Fig. 12 Dimensions of gaskets
Table 8 Bolts and tightening torques
Device/flange type Bolts Washers Nuts Tightening torque
PN16 / EN1092-1
DN50/ PN16 4 pc. DIN835-
M16x45-A2-70
4 pc. DIN125-
A17-A4
4 pc. ISO4032-
M16-A4-70
130 Nm 96 lbf ft
DN80/ PN16 8 pc. DIN835-
M16x45-A2-70
8 pc. DIN125-
A17-A4
8 pc. ISO4032-
M16-A4-70
130 Nm 96 lbf ft
DN100/ PN16
DN150/ PN16 8 pc. DIN835-
M16x45-A2-70
8 pc. DIN125-
A21-A2
8 pc. ISO4032-
M20-A2-70
250 Nm 184 lbf ft
Class 150 / ASME B16.5
2"/ Cl150 4 pc. Double end
threaded stud Ø 5/8",
length 3.5"- ASME
B18.31.2,
ASTM A193 Grade
B8M
4 pc. Type A plain
washer (narrow
series) Ø 5/8" -
ANSI B18.22.1,
grade 8 stainless
steel
4 pc. Hex flat nut
(UNC series)
Ø 5/8" -
ANSI B18.2.2,
ASTM A194 Grade
8MA
140 Nm 103 lbf ft
3"/ Cl150
4"/ Cl150 8 pc. Double end
threaded stud Ø 5/8",
length 3.5"- ASME
B18.31.2,
ASTM A193 Grade
B8M
8 pc. Type A plain
washer (narrow
series) Ø 5/8" -
ANSI B18.22.1,
grade 8 stainless
steel
8 pc. Hex flat nut
(UNC series)
Ø 5/8" -
ANSI B18.2.2,
ASTM A194 Grade
8MA
140 Nm 103 lbf ft
6"/ Cl150 8 pc. Double end
threaded stud Ø 3/4",
length 4.0"- ASME
B18.31.2,
ASTM A193 Grade
B8M
8 pc. Type A plain
washer (narrow
series) Ø 3/4" -
ANSI B18.22.1,
grade 8 stainless
steel
8 pc. Hex flat nut
(UNC series)
Ø 3/4" -
ANSI B18.2.2,
ASTM A194 Grade
8MA
240 Nm 177 lbf ft
To Next Page
Loading...
Need help?
General
