JIS B2220 5K Blind Flange

JIS B2220 Flange Products,JIS B2220 5K Blind Flange,5K BL Flange-Hebei Haihao Group

Hebei Haihao Group manufacture butt welding pipe fittings,forged pipe fittings,steel pipes and flanges products more than 30 years,our products sell well all over the world.As one of the earliest flange manufacturer,we have strong experience in flange production and quality inspection and a complete set of equipments,including  advanced cutting,forging,machining,drilling machines and professional  testing & inspection instruments.

JIS B2220 5K Blind Flange

JIS B2220 5K Blind Flange

We supply the products according to standard ANSI/ASME,API,BS,DIN,EN,JIS,GOST or customer’s requirements.We manufacture JIS B2220 blind flange in the pressure 5K,10K,16K,20K,30K.The nominal size for the JIS B2220 5K blind flange from 10A to 1500A,and the products’ sealing face can be raised face(RF),flat face(FF),ring type joint(RTJ) etc.Our products are widely used in industry field,like Oil,Gas & Petrochemical,Energy & Power plant,Chemical industrial,Shipbuilding & Offshore Development.The raw materials for our products are supplied by Bao Steel Group and Shougang Steel Group which belong to Chinese government,which 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 Blind Flange Diamensions:

BL Flange
Nominal Size
Outside diameter
of flange
Diameter of bolt hole Diameter of
bolt hole
Number of bolt Nominal designation
of thread of bolt
Thickness
of Flanget
A D C h t
10
15
20
75
80
85
55
60
65
12
12
12
4
4
4
M10
M10
M10
9
9
10
25
32
40
95
115
120
75
90
95
12
15
15
4
4
4
M10
M12
M12
10
12
12
50
65
80
130
155
180
105
130
145
15
15
19
4
4
4
M12
M12
M16
14
14
14
90
100
125
190
200
235
155
165
200
19
19
19
4
8
8
M16
M16
M16
14
16
16
150
175
200
265
300
320
230
260
280
19
23
23
8
8
8
M16
M20
M20
18
18
20
225
250
300
345
385
430
305
345
390
23
23
23
12
12
12
M20
M20
M20
20
22
22
350
400
450
480
540
605
435
495
555
25
25
25
12
16
16
M22
M22
M22
24
24
24
500
550
600
655
720
770
605
665
715
25
27
27
20
20
20
M22
M24
M24
24
26
26
650
700
750
825
875
945
770
820
880
27
27
33
24
24
24
M24
M24
M30
28
30
32
800
850
900
995
1045
1095
930
980
1030
33
33
33
24
24
24
M30
M30
M30
34
36
36
1000
1100
1200
1195
1305
1420
1130
1240
1350
33
33
33
28
28
32
M30
M30
M30
40
44
48
1350
1500
1575
1730
1505
1660
33
33
32
36
M30
M30
54
58

For any flanges needs you may have,please browse through our products list,then feel free to contact us.We always reply within 24 hours.We sincerely welcome customers domestic and abroad to visit us for cooperation.


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