JB/T 86.1-1994 Raised steel pipe flange cover

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
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
Nominal
Diameter
4||tt| |50
JB/T 86.1-94
Table 1PN0.6MPa raised face steel pipe flange cover connection dimensions
Flange outer diameter
Center of bolt hole
Series 1/Series 2
190/185
210/205
240/235
265/260
320/315
375/370
440/435
490/485
540/535
595 /590
645/640
Center circle diameter
Bolt hole diameter
Series 1/Series 2
26/2 5
Quantity
Sealing surface blade
Thread Th.
Series 1/Series 2
M24/M22
M24/M22
Dharma-shan
Thickness
Fahuali
On Mass
2、FC
(175）
500,|
140/135
150/145
165/160|| tt||85/180
200/195
220/215
250/245
285/280
340 /335
395/390
445/440
505/500
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
110)||tt| |123
840|| tt||1015/1010
1115/1110
1230/1220
螺栓孔化合|| tt||系系1/系系2
23|| tt||23
30||tt| |30
軺纹Th.|| tt||系系1/系系2
12|| tt||16
28||tt| |M12
M20|| tt||M20
M24/M22
M24/M22
M24/M22
M30||tt| |M30
M33/M30
工业面包装
78|| tt||85
24)||tt ||265
2| |tt||2
3||tt ||3
16|| tt||18
36||tt| |42
论道发
. 5h||h||1.||h||1.50||h||2.00||h||2.50||h||3.om||h||3.6h||h||5.30||h ||7.00
公称||tt ||通很
40||tt| |50
200||tt| |(225)
600||tt| |396
艺外外很
JB/T 86.1--94
表3PN1.6MPa |tt||105
140/135
150/145
165/160
185/180
200/ 195
220/215
250/245
285/280
340/335
715/705
160| |tt||180
410||tt ||470
軺没孔进得
系统1/系列2
23|| tt||26/25
36/41|| tt||螺栓
quantity
4||tt| |&
軺纹Th.
系系1/系系2|| tt||M12
M16||tt| |M16
M24/M22||tt| |M24/M22
M24/M22
M33/M36
工业面包装||tt| |d
320|| tt||375
3||tt| |3
5|| tt||艺
12|| tt||14
18||tt| |20
54 ||hh||mm||hh||11||hh||艺理||hh||论设计||hh||kg||hh||0.50||hh||0.60||hh|| 0.70
5.50| |tt||8.00
70.00|| tt||99.60
15||tt ||20
(175）
（225）
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
心圆分大的
系系1/系系2
105||tt| |115
140/135
150/145
165/160
185/180
200/195
235/230
555/550
620/610
310|| tt||340
系系1/系系2
18|| tt||23
30|| tt||30
4|| tt||4
12||tt| |12bZxz.net
軺纹Th.
系系1/系系2
M16||tt| |M16
M24/M22
M24/M22
M24/M22
M24 /M22
M33/M30
工业面包装
t|| tt||40
78||tt| |85
3|| tt||3
3||tt| 4
24| |hh||24||hh||26||hh||28||hh||30||hh||34||hh||38||hh||42||hh||mm||hh ||艺理
论金属
1.10|| tt||1.50
15.00||tt| |18.70
50| |tt||65
(225 ()
140/135
150/145
165/160|| tt||185/180
200/195
235/230
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
螺梓孔中
心圆分行
60||tt ||65
510| |tt||585
軺梓孔化合
系系1/系系2
14||tt ||14
26/25||tt ||26/25
41||tt ||軺
軺纹Th.
系系1/系系2
12| |tt||12
M12||tt ||M12
M24/M22||tt ||M24/M22
M33/M30
M36| |tt||工业面包装
85| |tt||100
282||tt ||315
3| |tt||3
16||tt ||1G
mm| |tt||法没理
论设计
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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