This standard replaces JB 86-59. This standard specifies the types and dimensions of raised face steel pipe flange covers with nominal pressure PN of 0.6, 1.0, 1.6, 2.5, 4.0 MPa. This standard is effective for raised face steel pipe flanges with nominal pressure PN0.6~4.0 MPa. JB/T 86.1-1994 Raised face steel pipe flange covers JB/T86.1-1994 Standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
Raised Face Steel Pipe Flange Cover
Subject Content and Scope of Application
JB/T 86.1--. 94
Substitute JB86--59
This standard specifies the types and sizes of raised face steel pipe flange covers with nominal pressure PN of 0.6, 1.0, 1.6.2.5, 4.0MPa. This standard applies to raised face steel pipe flange covers with nominal pressure PN0.6～4.0MPa. 2 Reference Standards
JB/T74 Technical Conditions for Pipe Flanges
3 The types and sizes of flange covers shall comply with the provisions of Figure 1 and Tables 1 to 5. K
D
Figure 1
The technical requirements of the flange cover shall be in accordance with the provisions of JB/T74 4
5The nominal pressure of the flange cover and the maximum allowable working pressure at different temperatures shall be in accordance with the provisions of Appendix B of JB/74. 6
Marking example
Nominal diameter 300mm, nominal pressure 4.0MPa~Size series 2 convex steel pipe flange cover flange cover 300-40JB/T 86.1--94
Nominal diameter 300mm, nominal pressure 4.0MPa. Raised face steel pipe flange cover of size series 1: Flange cover 300-40 (Series 1) JB/T86.1--94 Approved by the Ministry of Machinery Industry of the People's Republic of China on December 9, 1994 and implemented on October 1, 1995
393
Nominal
Diameter
N
10
15
20
23
32
4||tt| |50
65
30
100)
125
150
(175)
200
(225)
230
300
350
400
450
500
600
700
800
900
1000
394
JB/T 86.1-94
Table 1PN0.6MPa raised face steel pipe flange cover connection dimensions
Flange outer diameter
Center of bolt hole
D
Series 1/Series 2
75
80
90
100
120
130
140
16 0
190/185
210/205
240/235
265/260
290
320/315
340
375/370
440/435
490/485
540/535
595 /590
645/640
755
860
975
1075
1175
Center circle diameter
K
50
55
65
75
90
100
110
130
150
170
200
225
255
280
305
335
395
445
495
550
600
705
810
!
920
1020
1120
Bolt hole diameter
Series 1/Series 2
12
12
12
14
14
14
14
18
18
18
18
18
18
23
23
23
26/2 5
26/25
30
30
30
Bolts
Quantity
n
4
4
4
4
4
4
8
8
8
8
12
12
16
16
20
2.4
2.4
28
Sealing surface blade
d
Thread Th.
Series 1/Series 2
M1o
M10
Mio
M10
M12
M12
M12
M12
M16
M16
MIG
Mie
M16
M16
M16
M16
M20
M20
M20
M20
Mi20
M24/M22
M24/M22
M27
M27
M27
32
40
50
60
70
80
90
110
125
145
175
200
230
255
280
310
362
112
4 62
518
568
670
775
880
980
1080
2
2
2
2
3
3
3
3
3
1
5
3
5
Dharma-shan
Thickness
(
12
12
12
1 2
12
14
1.
14
14
16
16
16
16
16
18
18
20
22
24
28
32
3fi
410
41.1
n
Fahuali
On Mass
kg
0.30
(0. 1
n,30
.6
,90
1. 20
1. 4h
1.90
2、FC
3.30
5.10
6. 2t
8.00
9. 20
11.10
12.80
19,49
24.00
34.00
46.00
58.00
92.00
111.60
202.10
273.00
315.00
公称
通很
DN
10
15
20
25
32
40
5n
6
80
100
123
150
(175）
200
(225)
250
300
350
400
45t)
500,|
90
95
105
115
140/135
150/145
165/160|| tt||85/180
200/195
220/215
250/245
285/280
310
340 /335
365
395/390
445/440
505/500
565
615
670
780
895
JB/T 86.1--94
表2PN1.0MPa凸面钢制臂艺盖盖包装电视尺
螺梓孔中
心圆红行
60
6
75
85
10
110)||tt| |123
145
160
180
210
240
270
295
325
350
400
460
515
565
620
725
840|| tt||1015/1010
1115/1110
1230/1220
950
1050
1160
螺栓孔化合|| tt||系系1/系系2
14
14
14
14
18
18
18
18
18
18
18
23
23
23
23|| tt||23
23
23
26/25
26/25
26/25
30||tt| |30
34
34
36/34
軺
水天
梶
軺纹Th.|| tt||系系1/系系2
n
4
桂
4
4
4
4
8
8
8
8
8
8
12
12|| tt||16
16
20
20
21
24
24
28||tt| |M12
M12
M12
M12
M16
M16
Mi6
M16
M16
M16
M16
M20
M20
M20
M20
M20
M20|| tt||M20
M24/M22
M24/M22
M24/M22
M27
M27
M30||tt| |M30
M33/M30
工业面包装
10
45
55
65
78|| tt||85
100
120
135
155
185
210
24)||tt ||265
295
320
368
428
482
532
585
685
800
905
1005
1115
2
2
2
2| |tt||2
3
3
3
3
3
3
3||tt ||3
3
3
4
5
5
5
5
5.|
14
14
14
14
16
16
16
16|| tt||18
18
20
24
26
28
32
36||tt| |42
.418
5.
58


mm
艺理
论道发
kg
0.50
.6
(..7)
. 5h||h||1.||h||1.50||h||2.00||h||2.50||h||3.om||h||3.6h||h||5.30||h ||7.00
9.10
1.20
14.00
13.70
22.00
34.00
47.00
h1.00
127.0
159.00
200.00)
395.00
523.0
39元
公称||tt ||通很
DN
10
15
20
25
32
40||tt| |50
65
80
100
125
150
(175)
200||tt| |(225)
250
300
350
400
450
500
600||tt| |396
艺外外很
D
JB/T 86.1--94
表3PN1.6MPa |tt||105
115
140/135
150/145
165/160
185/180
200/ 195
220/215
250/245
285/280
310
340/335
365
405
460
520
580
640
715/705
840
K
60
65
75Www.bzxZ.net
85
100
110
125
145
160| |tt||180
210
240
270
295
325
355
410||tt ||470
525
585
650
770
軺没孔进得
t
系统1/系列2
14
14
E
14
14
18
18
18
18
18
18
18
23
23
23
23|| tt||26/25
26/25
26/25
30
30
3
36/41|| tt||螺栓
quantity
n
4
4
4
4
4||tt| |&
8
8
8
8
12
12
12
12
16
16
20
20
20
軺纹Th.
系系1/系系2|| tt||M12
M12
M12
M12
M16
M16
M16
M16||tt| |M16
M16
M16
M20
M20
M20
M20
M24/M22||tt| |M24/M22
M24/M22
M27
M27
M30
M33/M36
工业面包装||tt| |d
40
45
55
65
78
85
100
120
135
155
185
210
240
265
295
320|| tt||375
2
2
2
2
3
3
3||tt| |3
3
3
3
3
3
3
435
4
485
545
608
718
4
4
4
5|| tt||艺
淳度
C
12
12
12
12
12|| tt||14
14
14
14
16
16
18
18||tt| |20
22
24
28
32
36
42
46
54 ||hh||mm||hh||11||hh||艺理||hh||论设计||hh||kg||hh||0.50||hh||0.60||hh|| 0.70
0.80
1.20
1.60
2.00
2.50
2.90
1.10
5.50| |tt||8.00
10.20
12.80
17.50
22.00
34.00)
49.00
70.00|| tt||99.60
133.00
220.00
公称
通很
DN
10
15||tt ||20
25
32
40
50
65
80
100
125
150
(175）
200
（225）
250
300
350||tt ||400
JB/T 86.1--94
表4PN2.5MPa凸面钢制管艺盖盖之动电影之双
艺外很螺梓孔中||tt| |螺栓孔发利
D
心圆分大的
系系1/系系2
90
95
105||tt| |115
140/135
150/145
165/160
185/180
200/195
235/230
270
300
330
360
395
425
485
555/550
620/610
K
60
65
75
85
100
110
125
145
160
190
220
250
280
310|| tt||340
370
430
490
550
L
系系1/系系2
14
14
14
14
18
18
18
18
18|| tt||23
26/25
26/25
26/25
26/25
30
30|| tt||30
34
36/34
螺
水度
4
4
4|| tt||4
4
4
8
8
8
8
12||tt| |12
12
12
16
16
16
梶
軺纹Th.
系系1/系系2
M12
M12
M12
M12
M16
M16||tt| |M16
M16
M16
M20
M24/M22
M24/M22
M24/M22
M24 /M22
M27
M27
M27
M30
M33/M30
工业面包装
t|| tt||40
45
55
65
2
2
2
78||tt| |85
100
120
135
160
188
218
248
278
302
332
390
448
505
3
3
3|| tt||3
3
3
3
3
3
3
3||tt| 4
4
12
12
14
14
16
18
20
22
24| |hh||24||hh||26||hh||28||hh||30||hh||34||hh||38||hh||42||hh||mm||hh ||艺理
论金属
kg
09.50
0.60
0.70
0.80
1.10|| tt||1.50
2.00
2.80
3.80
5.80
8.60
11.90
15.00||tt| |18.70
25.10
30.00
45.00
66.00
92.00
397
公称
通迈
DN
10
15
20
25
32
10
50| |tt||65
so
100
125
150
(175)
200
(225 ()
90
95
105
115
140/135
150/145
165/160|| tt||185/180
200/195
235/230
270
300
330
375||tt| |415
450/445
515/510
580/570
6607655
JB/T86.1-·94
表5PN4.0MPa徸面钢制管蛋盖盖包装电视
包装
螺梓孔中
心圆分行
R
60||tt ||65
75
85
100
110
125
145
160
190
220
250
295
320
355
385
450
510| |tt||585
軺梓孔化合
1
系系1/系系2
14
14
14||tt ||14
18
18
18
18
18
23
26/25||tt ||26/25
30
30
34
34
34
36734
41||tt ||軺
水度
枪
軺纹Th.
系系1/系系2
4
4
4
4
8
8
8
8
8
12
12| |tt||12
12
16
16
16
M12
M12
M12||tt ||M12
M16
M16
Mie
M16
M16
M20
M24/M22||tt ||M24/M22
M27
M27
M30
M30
M30
M33/M30
M36| |tt||工业面包装
d
40
45
55
65
78
85| |tt||100
120
135
160
188
218
258
282||tt ||315
345
408
465
535
2
2
2
2
3
3
3
3
3
3
3
3| |tt||3
3
4
法
小明
16
16
16||tt ||1G
16
16
18
20
22
21
28
30
34
38
40
14
50
56
4
mm| |tt||法没理
论设计
k
07
0.8)
.90
1. 0
1.609
1.8
2.60
3.60
4. 70
2.19
jo.st
15.0
23. 40
29.0
39.00
3(5.(1)
50.00
74.00
158.00 | Series 1 sizes are preferred.
) The theoretical masses of flanges listed in Table 1 and Table 5 refer to Series 2 flanges. Additional notes:
This standard is proposed and administered by the Machinery Standardization Research Institute of the Ministry of Machinery Industry. This standard was drafted by the Machinery Standardization Research Institute of the Ministry of Machinery Industry and Harbin Boiler Factory. The main drafter of this standard is Li Junying and Wu Lanjia. 398
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