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Hebei haihao high pressure flange & pipe fitting group was established in 1982, located in Mengcun County the hometown of pipe fittings in China.


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JIS B2220 5K Lap Joint Flange,LJ Flange Manufacturer


JIS B2220 5K Lap Joint Flange,LJ Flange Manufacturer-Haihao Group

Haihao Group manufacture steel pipes,butt weld pipe fittings,forged pipe fittings and flanges products more than 30 years,we obtained the recognition from the clients and end users of domestic markets and all over the world.We have world-famous clients,such as Exxon Mobil,Shell,CNPC,SINOPEC,Unilever,Chevron,Pemex,Petrobras,Hyandai etc.

The JIS B2220 flange products in our company contain:weld neck flange(WN flange),slip on flange(SOP,SOH flange),socket weld flange(SW flange),lap joint flange(LJ flange),threaded flange(TR flange),blind flange(BL flange),integral flange(IT flange).

JIS B2220 Stainless Steel 5K Lap Joint Flange

JIS B2220 Stainless Steel 5K Lap Joint Flange

Threr are two types for the JIS B2220 lap joint flange in our company,the first one looks like  a plate flange,the second looks like weld neck flange,the drawing as follows:

JIS B2220 Lap Joint Flange

JIS B2220 Lap Joint Flange

JIS B2220 Lap Joint Flange

JIS B2220 Lap Joint Flange

We can manufacture JIS B2220 5K lap joint flange,JIS B2220 10K lap joint flange,JIS B2220 16K lap joint flange,JIS B2220 20K lap joint flange in high quality.

JIS B2220 5K lap joint flange size:

The first type JIS B2220 5K lap joint flange nominal size from 15A to 400A,the second type JIS B2220 5K lap joint flange nominal size from 450A to 600A.

JIS B2220 5K lap joint flange materials:

Haihao Group can manufacture the JIS B2220 5K lap joint flanges with carbon steel,stainless steel,alloy steel or according to customer’s requirements.

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.

There are the JIS B2220 5K lap joint flange dimensions,as follows:

LJ
Flange
Nominal Size

Outside diameter
of flange

 

Diameter of bolt hole centre circle

 

Number of bolt hole

 

Number of bolt Nominal design-ation
of thread of bolt

Inside
diam-eter

 

Thick-ness of Flange

 

Diam-eter of hub
Small diam-eter side

 

Diam-eter of hub
Large
diam-eter side

 

Totle length of flange

Cham
fering

Radius of field

A

D

C

h

d0

t

a

b

T

c

r

15
20
80
85
60
65
12
12
4
4
M10
M10
23.4
28.9
9
10
27
33
30
36
13
15
3
3
4
4
25
32
40
95
115
120
75
90
95
12
15
15
4
4
4
M10
M12
M12
35.6
44.3
50.4
10
12
12
41
50
56
44
53
66
17
19
20
3
4
4
4
4
4
50
65
80
130
155
180
105
130
145
15
15
19
4
4
4
M12
M12
M16
62.7
78.7
91.6
14
14
14
69
86
99
73
91
105
24
27
30
4
5
5
4
4
4
90
100
125
190
200
235
155
165
200
19
19
19
4
8
8
M16
M16
M16
104.1
116.9
143.0
14
16
16

127
154

130
161

36
40
5
5
6

4
4
150
175
200
265
300
320
230
260
280
19
23
23
8
8
8
M16
M20
M20
168.4

219.5
18
18
20
182

189

40

6

6
4

225
250
300
345
385
430
305
345
390
23
23
23
12
12
12
M20
M20
M20

271.7
322.8
20
22
22







6
9


350
400
450
480
540
605
435
495
555
25
25
25
12
16
16
M22
M22
M22
360.2
411.2
462.3
24
24
24


495


500


40
9
9
9


5
500
550
600
655
720
770
605
665
715
25
27
27
20
20
20
M22
M24
M24
514.4
565.2
616.0
24
26
26
546
597
648
552
603
654
40
42
44
9
9
9
5
5
5

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