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JIS 20K Flange
JIS B 2220 SO Blind Flange 20K
Standard: JIS B2220
Flange type: Slip On Flange (SO Flange)
Size range: DN10 - DN1200
Pressure: 20K, approximately 20kg/cm²
Material: Common options include carbon steel (e.g., SS400, SF440A, Q235) and stainless steel (e.g., ASTM A182 F304, F304L, F316, F316L)
Standard: JIS B2220
Flange type: SO blind flange
Size range: DN10-DN900
Pressure class: 20K
Process: forged
Specialize: As per drawing
Material:
Stainless Steel Material:
ASTM A182 F304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H,904L
Duplex stainless steel UNS S32304,S31803,S32205.
Super Duplex stainless steel UNS S32750/S32760/S31260/S32550/S32707
Carbon Steel Material:
ASTM A105, Q235, A350 LF2,ASTM A694 F42/F46/F52/F60/F65/F70/F80
Alloy Steel Material:
ASTM A 182, GR F1,F5, F9, F11, F22, F91
Copper&Nickel Alloy Material:
CU/NI 90/10, CU/NI 70/30
Nickel Alloy Material:
Monel 400 & 500, Inconel 600 & 625, Incolloy 800, 825, Hastelloy C22,C276
Surface treatment: Anti-rust oil, transparent/yellow/black,Anti-rust paint, Zinc,Hot dipped galvanized
Usage: Oil field, Offshore, Water system, Shipbuilding, Natural gas,Electric power, Pipe projects,etc.
- Standard: JIS B2220
- Flange Type: Slip On Flange (SO Flange)
- Size Range: DN10 - DN1200
- Pressure: 20K, approximately 20kg/cm²
- Material: Common options include carbon steel (e.g., SS400, SF440A, Q235) and stainless steel (e.g., ASTM A182 F304, F304L, F316, F316L)
|
Nominal Dia of Flange |
Outside Dia of Steel Pipe |
Inside Dia of Flange do |
Outside Dia of Flange |
Sectional Dimensions of Flange |
Bolt Hole |
Nominal Bolt Size |
Approx. |
|||||||||||
|
t |
T |
Dia. of Hub |
r |
Dia. of Face |
Dia. of Raised Face |
d |
Bolt.Circla Dia |
Number of Bolt Holes |
Hole Dia |
Weight |
||||||||
|
a |
b |
(kg) |
||||||||||||||||
|
|
|
|
D |
f |
g |
C |
h |
|
SOP |
BL |
SOH |
|||||||
|
10 |
17.3 |
17.8 |
90 |
14 |
20 |
30 |
32 |
4 |
1 |
46 |
- |
65 |
4 |
15 |
M12 |
0.6 |
0.6 |
0.59 |
|
15 |
21.7 |
22.2 |
95 |
14 |
20 |
34 |
36 |
4 |
1 |
51 |
- |
70 |
4 |
15 |
M12 |
0.7 |
0.7 |
0.65 |
|
20 |
27.2 |
27.7 |
100 |
16 |
22 |
40 |
42 |
4 |
1 |
56 |
- |
75 |
4 |
15 |
M12 |
0.8 |
0.9 |
0.81 |
|
25 |
34 |
34.5 |
125 |
16 |
24 |
48 |
50 |
4 |
1 |
67 |
- |
90 |
4 |
19 |
M16 |
1.3 |
1.5 |
1.29 |
|
32 |
42.7 |
43.2 |
135 |
18 |
26 |
56 |
60 |
5 |
2 |
76 |
- |
100 |
4 |
19 |
M16 |
1.6 |
1.8 |
1.6 |
|
40 |
48.6 |
49.1 |
140 |
18 |
26 |
62 |
66 |
5 |
2 |
81 |
- |
105 |
4 |
19 |
M16 |
1.7 |
2 |
1.69 |
|
50 |
60.5 |
61.1 |
155 |
18 |
26 |
76 |
80 |
5 |
2 |
96 |
- |
120 |
8 |
19 |
M16 |
1.9 |
2.4 |
1.89 |
|
65 |
76.3 |
77.1 |
175 |
20 |
30 |
100 |
104 |
5 |
2 |
116 |
65.9 |
140 |
8 |
19 |
M16 |
2.6 |
3.4 |
2.6 |
|
80 |
89.1 |
90 |
200 |
22 |
34 |
113 |
117 |
6 |
2 |
132 |
78.1 |
160 |
8 |
23 |
M20 |
3.8 |
4.9 |
3.93 |
|
90 |
101.6 |
102.6 |
210 |
24 |
36 |
126 |
130 |
6 |
2 |
145 |
90.2 |
170 |
8 |
23 |
M20 |
4.4 |
6 |
4.56 |
|
100 |
114.3 |
115.4 |
225 |
24 |
36 |
138 |
142 |
6 |
2 |
160 |
102.3 |
185 |
8 |
23 |
M20 |
4.9 |
6.9 |
5.13 |
|
125 |
139.8 |
141.2 |
270 |
26 |
40 |
166 |
172 |
6 |
2 |
195 |
126.6 |
225 |
8 |
25 |
M22 |
7.8 |
11 |
8.3 |
|
150 |
165.2 |
166.6 |
305 |
28 |
42 |
196 |
202 |
6 |
2 |
230 |
151 |
260 |
12 |
25 |
M22 |
10.1 |
14.9 |
10.6 |
|
200 |
216.3 |
218 |
350 |
30 |
46 |
244 |
252 |
6 |
2 |
275 |
199.9 |
305 |
12 |
25 |
M20 |
12.6 |
21.4 |
13.3 |
|
250 |
267.4 |
269.5 |
430 |
34 |
52 |
304 |
312 |
6 |
2 |
345 |
248.8 |
380 |
12 |
27 |
M24 |
21.9 |
37.2 |
23.4 |
|
300 |
318.5 |
321 |
480 |
36 |
56 |
354 |
364 |
8 |
3 |
395 |
297.9 |
430 |
16 |
27 |
M24 |
25.8 |
48.8 |
27.7 |
|
350 |
355.6 |
358.1 |
540 |
40 |
62 |
398 |
408 |
8 |
3 |
440 |
333.4 |
480 |
16 |
33 |
M30*3 |
36.2 |
68 |
39.2 |
|
400 |
406.4 |
409 |
605 |
46 |
70 |
446 |
456 |
10 |
3 |
495 |
381 |
540 |
16 |
33 |
M30*3 |
51.7 |
99.4 |
54.2 |
|
450 |
457.2 |
460 |
675 |
48 |
78 |
504 |
514 |
10 |
3 |
560 |
431.8 |
605 |
20 |
33 |
M30*3 |
66.1 |
129.1 |
71.7 |
|
500 |
508 |
511 |
730 |
50 |
84 |
558 |
568 |
10 |
3 |
615 |
482.6 |
660 |
20 |
33 |
M30*3 |
77.4 |
158.4 |
86.2 |
|
550 |
558.8 |
562 |
795 |
52 |
90 |
612 |
622 |
10 |
3 |
670 |
533.4 |
720 |
20 |
39 |
M36*3 |
92.2 |
194 |
105 |
|
600 |
609.6 |
613 |
845 |
54 |
96 |
666 |
676 |
10 |
3 |
720 |
584.2 |
770 |
24 |
39 |
M36*3 |
101.1 |
226.9 |
119 |
|
650 |
660.4 |
664 |
945 |
60 |
- |
- |
- |
- |
5 |
790 |
- |
850 |
24 |
48 |
M45*3 |
147.6 |
311.6 |
- |
|
700 |
711.2 |
715 |
994 |
64 |
- |
- |
- |
- |
5 |
840 |
- |
|
|
- |
- |
168 |
370.9 |
- |
|
750 |
762 |
766 |
1080 |
68 |
- |
- |
- |
- |
5 |
900 |
- |
970 |
24 |
56 |
M52*3 |
212.7 |
460.1 |
- |
|
800 |
812.8 |
817 |
1140 |
72 |
- |
- |
- |
- |
5 |
960 |
- |
1030 |
24 |
56 |
M52*3 |
248.5 |
546.5 |
- |
|
850 |
863.6 |
868 |
1200 |
74 |
- |
- |
- |
- |
5 |
1020 |
- |
1090 |
24 |
56 |
M52*3 |
280.5 |
626.2 |
- |
|
900 |
914.6 |
919 |
1250 |
76 |
- |
- |
- |
- |
5 |
1070 |
- |
1140 |
28 |
56 |
M52*3 |
296.9 |
694.9 |
- |
