JIS B2220 5K Weld Neck Flange

JIS B2220 5K Weld Neck Flange,B2220 5K WN Flange Manufacturer-Hebei Haihao Flange Factory

Hebei Haihao Flange Factory,established in 1982,is one of the biggest flanges manufacturer in China,we are specialized in the production of forged steel flanges,plate steel flanges etc.We manufacture flange products according to standard ANSI/ASME B16.5/B16.36/B16.48,BS 4504,BS 10,EN 1092,JIS B2220,GOST and customer’s requirements.(JIS B2220 flange standard)

We supply JIS B2220 flange products with experienced team and advanced manufacture equipments,the products contain:JIS B2220 weld neck flange,JIS B2220 slip on flange,JIS B2220 socket weld flange,JIS B2220 blind flange,JIS B2220 threaded flange,JIS B2220 lap joint flange,JIS B2220 integral flange.

JIS B2220 5K Weld Neck Flange,WN Flange Manufactured in Haihao Group

JIS B2220 5K Weld Neck Flange,WN Flange Manufactured in Haihao Group

The dimensions about JIS B2220 5K weld neck flange(WN flange):

JIS B2220 5K weld neck flange nominal size:

We supply the JIS B2220 5K wn flange from 10A to 1500A.

JIS B2220 5K weld neck flange sealing face:

The sealing face for the products can be raised face(RF),flat face(FF),ring type joint face(RTJ) etc.

JIS B2220 5K weld neck flange raw materials:

The raw materials for our products are supplied by Bao Steel Group and Shougang Steel Group which belong to Chinese government.The raw materials as follows:
Carbon Steel: ASTM A105,A181,ASTM A516 GR.60,GR.70,ASTM A694 F42,F46,F52,F56,F60,F65,F70,ST37,ST45.8,C22.8,S2235,S235JRG2,P235GH,P245GH,P250GH,P265GH,P355GH,S355J2,16Mn,20Mn,Q235,20#,CT20,SS400 etc.
Stainless Steel: ASTM A182 F304,F304L,F316,F316L,F321,F321H,F304H,F316H,F347H,1.4301,1.4306,1.4401,1.4404,1.4541,1.4571,SUS304,SUS316 etc.
Alloy Steel: ASTM A350 LF2,CL1/CL2,ASTM A182 F5,F9,F11,F12,F22,F91 etc.

JIS B2220 5K weld neck flange applications:

The flange products manufactured by Hebei Haihao flange factory are widely uesed in the industry markets,like Oil & Gas development,power plant,chemical industrial,shipbuilding & offshore,steel constructions,water treatment etc.

The specification for JIS B2220 5K weld neck flange:

WN
Flange
Nomi-
nal
Size
Out-
side
diam-
eter of
flange
Diam-
eter of
bolt
hole
centre
circle
Diam-
eter
of
bolt
hole
Num-
ber of
bolt
Nom
-inal
desig-
nation
of thr-
ead of
bolt
Inside
diam-
eter 

 

Rais-ed
face
Diam
-eter
Rai-
sed
face
Hei-
ght
Thick-
ness of
flange
Diam-
eter of
hub
Small
diam-
eter
side
Diam-
eter of
hub
Large
diam-
eter
side
Taper
of hub
Totle
length
of fla-
nge
Radi-
us of
fillet
Sub-
stitu-
tional
diame-
nsion
of WN
Thick-
ness of
flange
Sub-
stitu-
tional
diam-
ension
of WN
Taper
of hub
A D C h     d(14) g f t a b(15) x T r(15) t x
10
15
20
75
80
85
55
60
65
12
12
12
4
4
4
M10
M10
M10
12.7
16.1
21.6
39
44
49
1
1
1
9
9
10
17.3
21.7
27.2
26
31
38
1.25
1.25
1.25
24
25
28
4
4
4




25
32
40
95
115
120
75
90
95
12
15
15
4
4
4
M10
M12
M12
27.6
35.7
41.6
59
70
75
1
2
2
10
12
12
34.0
42.7
48.6
46
55
62
1.25
1.25
1.25
30
33
34
4
4
4




50
65
80
130
155
180
105
130
145
15
15
19
4
4
4
M12
M12
M16
52.9
67.9
80.7
85
110
121
2
2
2
14
14
14
60.5
76.3
89.1
73
91
105
1.25
1.25
1.25
36
39
41
4
4
4




90
100
125
190
200
235
155
165
200
19
19
19
4
8
8
M16
M16
M16
93.2
105.3
130.8
131
141
176
2
2
2
14
16
16
101.6
114.3
139.8
117
128
156
1.25
1.25
1.25
41
41
43
4
4
4




150
175
200
265
300
320
230
260
280
19
23
23
8
8
8
M16
M20
M20
155.2
180.1
204.7
206
232
252
2
2
2
18
18
20
165.2
190.7
216.3
184
209
235
1.25
1.25
1.25
49
49
53
4
4
4




225
250
300
345
385
430
305
345
390
23
23
23
12
12
12
M20
M20
M20
229.4
254.2
304.7
277
317
360
2
2
3
20
22
22
241.8
267.4
318.5
261
290
342
1.25
1.25
1.25
54
61
62
4
4
4




350
400
450
480
540
605
435
495
555
25
25
25
12
16
16
M22
M22
M22
339.8
390.6
441.4
403
463
523
3
3
3
24
24
24
355.6
406.4
457.2
385
438
491
1.25
1.25
1.25
73
76
79
4
4
5




500
550
600
655
720
770
605
665
715
25
27
27
20
20
20
M22
M24
M24
492.2
543.0
593.8
573
630
680
3
3
3
24
26
26
508.0
558.8
609.6
541
593
643
1.25
1.25
1.25
79
81
81
5
5
5




650
700
750
825
875
945
770
820
880
27
27
33
24
24
24
M24
M24
M30
644.6
695.4
746.2
735
785
840
3
3
3
26
26
28
660.4
711.2
762.0
698
748
802
1.25
1.5
1.5
85
94
100
5
5
5

36
38

1.25
1.25
800
850
900
995
1045
1095
930
980
1030
33
33
33
24
24
24
M30
M30
M30
797.0
847.8
898.6
890
940
990
3
3
3
28
28
30
812.8
863.6
914.4
852
902
952
1.5
1.75
1.75
100
108
108
5
5
5
38
38
40
1.25
1.5
1.5
1000
1100
1200
1195
1305
1420
1130
1240
1350
33
33
33
28
28
32
M30
M30
M30
1000.2
1098.6
1200.2
1090
1200
1305
3
3
3
32
32
34
1016.0
1117.6
1219.2
1052
1162
1272
2
2
2
116
136
155
5
8
8
50
56
62
1.5
1.5
1.5
1350
1500
1575
1730
1505
1660
33
33
32
36
M30
M30
1346.2
1498.6
1460
1615
3
3
34
36
1371.6
1524.0
1427
1582
2
2
164
172
8
10
62
66
1.5
1.5

Hebei Haihao put quality and reputation on the first position.We established a laboratory of quality inspection with the Supervision Bureau of Quality and Technology of China,get the first “famous brand” for pipe fittings in Hebei.Haihao Group has been type approved by world-class notified bodies.

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