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SITRANS LC500 – OPERATING INSTRUCTIONS
7ML19985GE04
Appendix E
Welded Flat Face Flange (7ML5513, 7ML5515, 7ML5523)
Welded Flat Face Flange cont’d
Flange
class
Nominal
pipe size
Outside
diameter
øD
(±2.0)
Bolt hole
Circle øK
(±1.0)
Bolt hole
diameter
øL
(±0.3 x N)
Number of
bolt holes
N
Flange thickness
b
(+1.0/-0.0)
PN16
DN25
115.0
85.0
14.0
4
18.0
DN40
150.0
110.0
18.0
4
18.0
DN50
165.0
125.0
18.0
4
18.0
DN80
200.0
160.0
18.0
8
20.0
DN100
220.0
180.0
18.0
8
20.0
DN125
250.0
210.0
18.0
8
22.0
PN40
DN25
115.0
85.0
14.0
4
18.0
DN40
150.0
110.0
18.0
4
18.0
DN50
165.0
125.0
18.0
4
20.0
DN80
200.0
160.0
18.0
8
24.0
DN100
235.0
190.0
22.0
8
24.0
DN125
270.0
220.0
26.0
8
26.0
"A"
"A"
SECTION "A-A"
b
øL
øK
øD