Wenzhou CHENGJIU Flange Manufacruring Co., LTD
Tel: 0086-577-85802063
Fax: 0086-577-85802073
E-mail: sales@chinjiu.cn
- NORWEGIAN NS FLANGE
NS2525, 2526, 2527, 2529 Plain
Technical Data Chart Norwegian Standard (NS) Plain Flanges
Plain Welding Flange NS2525 PN6
DN
flange
Bolts
weight
d4
mm
D
mm
b
mm
k
mm
no.
size
d2
mm
kg/ea
15
21.3
80
12
55
4
M 10
11
0.41
20
26.9
90
14
65
4
M 10
11
0.6
25
33.7
100
14
75
4
M 10
11
0.74
32
42.4
120
16
90
4
M 12
14
1,190
40
48.3
130
16
100
4
M 12
14
1,390
50
60.3
140
16
110
4
M 12
14
1,530
65
76.1
160
16
130
4
M 12
14
1,890
80
88.9
190
18
150
4
M 16
18
2,980
100
114.3
210
18
170
4
M 16
18
3,460
125
139.7
240
20
200
8
M 16
18
4,600
150
168.3
265
20
225
8
M 16
18
5,220
200
219.1
320
22
280
8
M 16
18
7,150
250
273
375
24
350
12
M 16
18
9,610
300
323.9
440
24
395
12
M 20
22
12.6
Plain Welding Flange NS2526 PN10
flange
Bolts
weight
DN
d1
mm
D
mm
b
mm
d4
mm
k
mm
no.
size
d2
mm
kg/ea
apx.
200
219.1
340
24
221.5
295
8
M 20
22
9,380
250
273
394
26
276
350
12
M 20
22
11,900
300
323.9
445
26
327
400
12
M 20
22
13.7
350
355.6
506
28
359
460
16
M20
22
20.4
400
406.4
565
32
410
515
16
M24
26
27.7
450
457
615
34
461
565
20
M24
26
31.9
500
508
670
34
512
620
20
M24
26
36.3
600
610
780
36
614
725
20
M27
30
47.3
700
711
895
38
716
840
24
M27
30
64.3
800
813
1015
42
818
950
24
M27
30
84.1
Plain Welding Flange NS2527 PN16
flange
Bolts
weight
DN
d1
mm
D
mm
b
mm
d4
mm
k
mm
no.
size
d2
mm
kg/ea
apx.
15
21.3
95
12
22
65
4
M 12
14
0.574
20
26.9
105
14
27.5
75
4
M 12
14
0.818
25
33.7
115
14
34.5
85
4
M 12
14
1,030
32
42.4
140
16
43
100
4
M 16
18
1,620
40
48.3
150
16
49
110
4
M 16
18
1,850
50
60.3
165
18
61
125
4
M 16
18
2,460
65
76.1
18 5
18
77
145
4
M 16
18
2,990
80
88.9
200
20
90
160
8
M 16
18
3,610
100
114.3
220
22
115.5
180
8
M 16
18
4,390
125
139.7
250
24
141.5
210
8
M 16
18
5,880
150
168.3
285
24
170.5
240
8
M 20
22
7,120
200
219.1
340
26
221.5
295
12
M 20
22
9,700
250
273
405
32
276
355
12
M 24
26
15,700
300
323.9
460
32
327
410
12
M 24
26
19.1
350
355.6
520
36
359
470
16
M24
26
29
400
406.4
580
38
410
525
16
M27
30
36
450
457
640
38
461
585
20
M27
30
41.9
500
508
715
40
512
650
20
M30
36
56
600
610
840
44
614
770
20
M33
36
82.1
Plain Welding Flange NS2529 PN40
flange
Bolts
DN
d1
D
t
k
No.
Bolt
d2
mm
mm
mm
mm
mm
mm
mm
40
48.3
150
18
110
45
88
4
M 16
18
50
60.3
165
20
125
48
102
4
M 16
18
65
76.1
185
22
145
52
122
8
M 16
18
80
88.9
200
24
160
58
138
8
M 16
18
100
114
235
24
190
65
162
8
M 20
22
125
140
270
26
220
68
188
8
M 24
26
150
168
300
28
250
75
218
8
M 24
26
200
219
375
30
320
88
285
12
M 27
30
250
273
450
32
385
105
345
12
M 30
33
Norwegian Standard (NS) Flanges
NS2537 / NS2538 PIX ONLY
NS2539 / NS2540 / NS2542 PIX ONLY
