Siemens 7ML5431 - Page 227

Dimension drawings
12.32 Flat-Face flange
SITRANS LR250 with mA/HART
Operating Instructions, 10/2019, A5E32220602-AG
227
Flat-Face flange dimensions
Flange size
a)
Flange class
Flange O.D.
Bolt hole circle
Ø
Bolt hole Ø
No. of bolt
holes
Thickness
2"
ASME 150 lb
6.0"
4.75"
0.75"
4
0.88"
3"
ASME 150 lb
7.5"
6.0"
0.75"
4
0.96"
4"
ASME 150 lb
9.0"
7.50"
0.75"
8
1.25"
2"
ASME 300 lb
6.50"
5.00"
0.75"
8
1.12"
3"
ASME 300 lb
8.25"
6.62"
0.88"
8
1.38"
4"
ASME 300 lb
10.00"
7.88"
0.88"
8
1.50"
DN50
EN PN16
165 mm
125 mm
18 mm
4
24.4 mm
DN80
EN PN16
200 mm
160 mm
18 mm
8
31.8 mm
DN100
EN PN16
220 mm
180 mm
18 mm
8
31.8 mm
DN50
EN PN40
165 mm
125 mm
18 mm
4
25.4 mm
DN80
EN PN40
200 mm
160 mm
18 mm
8
31.8 mm
DN100
EN PN40
235 mm
190 mm
22 mm
8
38.1 mm
50A
JIS 10K
155 mm
120 mm
19 mm
4
23.8 mm
80A
JIS 10K
185 mm
150 mm
19 mm
8
24.4 mm
100A
JIS 10K
210 mm
175 mm
19 mm
8
28.5 mm
a)
A 2" flange is designed to fit a 2" pipe: for actual flange dimensions see Flange O.D.
Flange markings located around the outside edge of the flat faced flange identify the flange
assembly on which the device is mounted.
Flat-Face flange markings
Flat Face Flange Identification
Welded Assembly
Identification
Serial No. Logo
Flange series
Material Heat
code
Flange
series
Heat code
no.
Series
Nominal size
MMDDYYXXX
25556
2
150
316L/ 1.4404 or
316L/ 1.4435
A1B2C3 25546 A1B2C3
DN80 PN16
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.
Nominal size:
The flange size followed by the hole pattern for a particular flange class. For
example:
•
A 2 inch ASME B16.5 150 lb class flange (North America)
•
A DN80 EN 1092-1 PN16 class flange (Europe)
Material:
The basic flange material (AISI or EU material designation). North American
material codes are followed by European ones. For example, material des-
ignation 316L/1.4404.
Heat code:
A flange material batch code identification.