Siemens 7ML5431 - Page 225

Dimension drawings
12.31 Raised-Face flange per EN 1092-1 for flanged encapsulated antenna
SITRANS LR250 with mA/HART
Operating Instructions, 10/2019, A5E32220602-AG
225
Raised-Face flange dimensions
Pipe size
Flange class
⑤
Flange
O.D.
[mm
(inch)]
③
Bolt hole
circle Ø
[mm
(inch)]
②
Bolt hole
Ø [mm
(inch)]
No. of bolt
holes
①
Angle of
adjacent
bolt holes
⑦
Facing Ø
[mm
(inch)]
⑨
Flange
thickness
[mm
(inch)]
⑥
Flange
facing
thickness
[mm
(inch)]
2" 150 LB 152
(5.98)
120.7
(4.75)
19 (0.75) 4 90 92.1
(3.63)
20.6
(0.81)
1.5 (0.06)
3" 190
(7.48)
152.4
(6.00)
127 (5.00) 25.9
(1.02)
2 (0.08)
4" 230
(9.06)
190.5
(7.50)
8 45 157.2
(6.19)
2 (0.08)
6" 280
(11.02)
241.3
(9.50)
22.2
(0.87)
215.9
(8.50)
26.9
(1.06)
1.5 (0.06)
DN50 PN10/16 155
(6.10)
125 (4.92) 18 (0.71) 4 90 102 (4.02) 18 (0.71) 2 (0.08)
DN80 200
(7.87)
160 (6.30) 8 45 138 (5.43) 20 (0.79) 2 (0.08)
DN100 220
(8.66)
180 (7.09) 158 (6.22) 2 (0.08)
DN150 285
(11.22)
240 (9.45) 22 (0.87) 212 (8.35) 22 (0.87) 2 (0.08)
50A 10K 155
(6.10)
120 (4.72) 19 (0.75) 4 90 96 (3.78) 16 (0.63) 2 (0.08)
80A 185
(7.28)
150 (5.91) 8 45 126 (4.96) 18 (0.71) 2 (0.08)
100A 210
(8.27)
175 (6.89) 151 (5.94) 2 (0.08)
150A 280
(11.02)
240 (9.45) 23 (0.91) 212 (8.35) 22 (0.87) 2 (0.08)
Raised-Face flange markings
Blind Flange Markings (Optional Manu-
facturer’s Logo [optional]; Flange
Standard; Nominal Size; Material; Heat
Code)
Machining Identification
Welded Assembly Identification
Serial no.
Logo
Flange series
Flange
series
Heat Code
no.
Facing
Manufacturer’s logo; EN 1092-1 05 ‘B1’;
‘DN50’ ‘PN16’ ‘1.4404 or 1.4435’
A1B2C3
mmddyyx
xx
xxxxx xxxxx A1B2C3 RF
The flange markings are located around the outside edge of the flange.
Serial number:
a unique number allotted to each flange, including the date of manufacture
(MMDDYY) followed by a number from 001 to 999 (indicating the sequential
unit produced).
Flange series:
the Siemens Milltronics drawing identification.
Heat code:
a flange material batch code identification.