钢制管法兰连接用八角形金属环垫 (摘自GB/T9128.1—1988)
钢制管法兰连接用椭圆形金属环垫 (摘自GB/T9128.2—1988) (mm)
|
|
标记示例:
材料为0Cr19Ni9，环号为R21的八角形金属环垫：
八角环垫 R21-0Cr19Ni9 GB／T 9128.1—1988
注：r＝1.6 mm(环宽≤22.2 mm)r＝2.4mm(环宽≥25.4mm)
材料为0Cr19Ni9,环号为R21的椭圆 形金属环垫：
椭圆环垫 R21-0Cr19Ni9 GB／T 9128.2—1988
|
公称压力PN／MPa
|
环号
|
节径P
|
环宽A
|
八角形垫
(GB／T 9128.1—1988)
|
椭圆形垫
(GB／T 9128.2—1988)
|
2.0
|
5.0，10.0
|
15.0
|
25.0
|
42.0
|
环高H
|
环的平面宽度C
|
理论质量／kg
|
环高H
|
理论质量／kg
|
公称通径DN
|
|
15
|
|
|
|
R11
|
34.14
|
6.4
|
9.5
|
4.3
|
0.05
|
11.1
|
0.05
|
|
|
15
|
15
|
|
R12
|
39.67
|
7.9
|
12.7
|
5.2
|
0.1
|
14.3
|
0.1
|
|
20
|
|
|
15
|
R13
|
42.88
|
7.9
|
12.7
|
5.2
|
0.1
|
14.3
|
0.11
|
|
|
20
|
20
|
|
R14
|
44.45
|
7.9
|
12.7
|
5.2
|
0.1
|
14.3
|
0.11
|
25
|
|
|
|
|
R15
|
47.62
|
7.9
|
12.7
|
5.2
|
0.11
|
14.3
|
0.12
|
|
25
|
25
|
25
|
20
|
R16
|
50.80
|
7.9
|
12.7
|
5.2
|
0.11
|
14.3
|
0.12
|
32
|
|
|
|
|
R17
|
57.15
|
7.9
|
12.7
|
5.2
|
0.13
|
14.3
|
0.14
|
|
32
|
32
|
32
|
25
|
R18
|
60.32
|
7.9
|
12.7
|
5.2
|
0.14
|
14.3
|
0.15
|
40
|
|
|
|
|
R19
|
65.07
|
7.9
|
12.7
|
5.2
|
0.15
|
14.3
|
0.16
|
|
40
|
40
|
40
|
|
R20
|
68.27
|
7.9
|
12.7
|
5.2
|
0.15
|
14.3
|
0.17
|
|
|
|
|
32
|
R21
|
72.74
|
11.1
|
15.9
|
7.7
|
0.29
|
17.5
|
0.3
|
50
|
|
|
|
|
R22
|
82.55
|
7.9
|
12.7
|
5.2
|
0.19
|
14.3
|
0.2
|
|
50
|
|
|
40
|
R23
|
82.55
|
11.1
|
15.9
|
7.7
|
0.33
|
17.5
|
0.34
|
|
|
50
|
50
|
|
R24
|
95.25
|
11.1
|
15.9
|
7.7
|
0.38
|
17.5
|
0.39
|
65
|
|
|
|
|
R25
|
101.60
|
7.9
|
12.7
|
5.2
|
0.23
|
14.3
|
0.25
|
|
65
|
|
|
50
|
R26
|
101.60
|
11.1
|
15.9
|
7.7
|
0.41
|
17.5
|
0.42
|
|
|
65
|
65
|
|
R27
|
107.95
|
11.1
|
15.9
|
7.7
|
0.43
|
17.5
|
0.45
|
|
|
|
|
65
|
R28
|
111.12
|
12.7
|
17.5
|
8.7
|
0.56
|
19
|
0.57
|
80
|
|
|
|
|
R29
|
114.30
|
7.9
|
12.7
|
5.2
|
0.26
|
14.3
|
0.28
|
|
80
|
|
|
|
R30
|
117.48
|
11.1
|
15.9
|
7.7
|
0.47
|
17.5
|
0.49
|
|
80
|
80
|
|
|
R31
|
123.82
|
11.1
|
15.9
|
7.7
|
0.5
|
17.5
|
0.51
|
|
|
|
|
80
|
R32
|
127
|
12.7
|
17.5
|
8.7
|
0.64
|
19
|
0.65
|
|
|
|
80
|
|
R35
|
136.52
|
11.1
|
15.9
|
7.7
|
0.55
|
17.5
|
0.56
|
100
|
|
|
|
|
R36
|
149.22
|
7.9
|
12.7
|
5.2
|
0.34
|
14.3
|
0.37
|
|
100
|
100
|
|
|
R37
|
149.22
|
11.1
|
15.9
|
7.7
|
0.6
|
17.5
|
0.62
|
|
|
|
|
100
|
R38
|
157.18
|
15.9
|
20.6
|
10.5
|
1.14
|
22.2
|
1.16
|
|
|
|
100
|
|
R39
|
161.92
|
11.1
|
15.9
|
7.7
|
0.65
|
17.5
|
0.67
|
125
|
|
|
|
|
R40
|
171.45
|
7.9
|
12.7
|
5.2
|
0.39
|
14.3
|
0.42
|
|
125
|
125
|
|
|
R41
|
180.98
|
11.1
|
15.9
|
7.7
|
0.73
|
17.5
|
0.75
|
|
|
|
|
125
|
R42
|
190.5
|
19
|
23.8
|
12.3
|
1.88
|
25.4
|
1.9
|
150
|
|
|
|
|
R43
|
193.68
|
7.9
|
12.7
|
5.2
|
0.44
|
14.3
|
0.48
|
|
|
|
125
|
|
R44
|
193.68
|
11.1
|
15.9
|
7.7
|
0.78
|
17.5
|
0.8
|
|
150
|
150
|
|
|
R45
|
211.14
|
11.1
|
15.9
|
7.7
|
0.85
|
17.5
|
0.87
|
|
|
|
150
|
|
R46
|
211.14
|
12.7
|
17.5
|
8.7
|
1.06
|
19
|
1.08
|
|
|
|
|
150
|
R47
|
228.6
|
19
|
23.8
|
12.3
|
2.25
|
25.4
|
2.28
|
200
|
|
|
|
|
R48
|
247.65
|
7.9
|
12.7
|
5.2
|
0.56
|
14.3
|
0.61
|
|
200
|
200
|
|
|
R49
|
269.88
|
11.1
|
15.9
|
7.7
|
1.08
|
17.5
|
1.12
|
|
|
|
200
|
|
R50
|
269.88
|
15.9
|
20.6
|
10.5
|
1.95
|
22.2
|
1.99
|
|
|
|
|
200
|
R51
|
279.40
|
22.2
|
27
|
14.8
|
3.69
|
28.6
|
3.65
|
250
|
|
|
|
|
R52
|
304.8
|
7.9
|
12.7
|
5.2
|
0.99
|
14.3
|
0.75
|
|
250
|
250
|
|
|
R53
|
323.85
|
11.1
|
15.9
|
7.7
|
1.3
|
17.5
|
1.34
|
|
|
|
250
|
|
R54
|
323.85
|
15.9
|
20.6
|
10.5
|
2.34
|
22.2
|
2.39
|
|
|
|
|
250
|
R55
|
342.90
|
28.6
|
34.6
|
19.8
|
7.67
|
36.5
|
7.34
|
300
|
|
|
|
|
R56
|
381
|
7.9
|
12.7
|
5.2
|
0.86
|
14.3
|
0.94
|
|
300
|
300
|
|
|
R57
|
381
|
11.1
|
15.9
|
7.7
|
1.53
|
17.5
|
1.53
|
|
|
|
300
|
|
R58
|
381
|
22.2
|
27
|
14.8
|
5.03
|
28.6
|
4.97
|
350
|
|
|
|
|
R59
|
396.88
|
7.9
|
12.7
|
5.2
|
0.9
|
14.3
|
0.97
|
|
|
|
|
300
|
R60
|
406.4
|
31.8
|
38.1
|
22.3
|
11.08
|
39.7
|
10.48
|
|
350
|
|
|
|
R61
|
419.1
|
11.1
|
15.9
|
7.7
|
1.68
|
17.5
|
1.73
|
|
|
350
|
|
|
R62
|
419.1
|
15.9
|
20.6
|
10.5
|
3.03
|
22.2
|
3.09
|
|
|
|
350
|
|
R63
|
419.1
|
25.4
|
31.8
|
17.3
|
7.55
|
33.3
|
7.31
|
400
|
|
|
|
|
R64
|
454.02
|
7.9
|
12.7
|
5.2
|
1.03
|
14.3
|
1.11
|
|
400
|
|
|
|
R65
|
469.9
|
11.1
|
15.9
|
7.7
|
1.89
|
17.5
|
1.94
|
|
|
400
|
|
|
R66
|
469.9
|
15.9
|
20.6
|
10.5
|
3.1
|
22.2
|
3.46
|
|
|
|
400
|
|
R67
|
469.9
|
28.6
|
34.9
|
19.8
|
10.51
|
36.5
|
10.06
|
450
|
|
|
|
|
R68
|
517.52
|
7.9
|
12.7
|
5.2
|
1.17
|
14.3
|
1.27
|
|
450
|
|
|
|
R69
|
533.4
|
11.1
|
15.9
|
7.7
|
2.14
|
17.5
|
2.21
|
|
|
450
|
|
|
R70
|
533.4
|
19
|
23.8
|
12.3
|
5.25
|
25.4
|
5.33
|
|
|
|
450
|
|
R71
|
533.4
|
28.6
|
34.9
|
19.8
|
11.93
|
36.5
|
11.42
|
500
|
|
|
|
|
R72
|
558.8
|
7.9
|
12.7
|
5.2
|
1.26
|
14.3
|
1.37
|
|
500
|
|
|
|
R73
|
584.2
|
12.7
|
17.5
|
8.7
|
2.93
|
19
|
2.98
|
|
|
500
|
|
|
R74
|
584.2
|
19
|
23.8
|
12.3
|
5.75
|
25.4
|
5.84
|
|
|
|
500
|
|
R75
|
584.2
|
31.8
|
38.1
|
22.3
|
15.92
|
39.7
|
15.06
|
600
|
|
|
|
|
R76
|
673.1
|
7.9
|
12.7
|
5.2
|
1.52
|
14.3
|
1.65
|
|
600
|
|
|
|
R77
|
692.15
|
15.9
|
20.6
|
10.5
|
5
|
22.2
|
5.1
|
|
|
600
|
|
|
R78
|
692.15
|
25.4
|
34.8
|
17.3
|
12.7
|
33.3
|
12.07
|
|
|
|
600
|
|
R79
|
692.15
|
34.9
|
41.2
|
24.8
|
22.55
|
44.4
|
21.99
|
注:1.环垫材料及使用温度范围见表环垫材料及使用温度范围。
2.软铁的化学成分(质量分数)见表软铁的化学成分。
3.环垫的材料硬度值应比法兰材料硬度值低30～40HBS,其最大硬度值见表环垫材料最大硬度值。
4.环垫尺寸的极限偏差见表环垫尺寸的极限偏差。
