标准
STANDARDS
DN600, 小压力等级Class 150, 300, 600的美国太平洋阀门的标准凸面法兰符合ANSI B16.5标准。DN750以上,压力等级为Class
150, 300, 600采用符合MSS-SP-44钢管线法兰。如果需要API-605法兰,请咨询工厂。
Standards raised face flanges on 24" and
small Class 150, 300, 600 Pacific valves conform to ANSI B16.5. Class
150, 300, 600 valves 30" and larger conform to MSS-SP-44 Steel Pipeline
Flanges. Consult factory for API- 605 Flanges.
表面和光泽度
FACING AND FINISH
压力等级Class 600法兰阀门通常配置1/4英寸凸面(1/4英寸并不包括在法兰厚度“Q”内)。凸面的标准光洁度是有锯齿的或是螺旋形,或是同心形,具有125-200
RA表面光洁度。
Class 600 flanged valves are regularly furnished
with a 1/4" raised face (1/4" is not included in the flange
thickness “Q”.) Standard finish on the raised face is serrated, either
spiral or concentric, with 125-200 RA surface finish. |
|
压力等级Class 150凸面钢法兰
CLASS 150 RAISED FACE STEEL FLANGES |
管道公称
通径
Nominal
Pipe
Size |
法兰外径
“Q”
Outside
Diameter of
Flange
“O” |
螺栓圆周
直径
“BC”
Diameter
of Bolt
Circle
“BC” |
凸面直径
“R”
Diameter
of Raised
Face
“R” |
阀门
端口
“P”
Valve
Port
“P” |
法兰厚度
“Q”
Thick. of
Flange
“Q” |
螺栓孔
直径
Diameter
of Bolt
Holes |
螺栓
数量
Number
of Bolts |
螺栓直径
Diameter
of Bolts |
1/2 3/4
1
11/4
11/2 |
3.50
3.88
4.25
4.62
5.00 |
2.38
2.75
3.12
3.50
3.88 |
1.38
1.69
2.00
2.50
2.88 |
0.50
0.75
1.00
1.25
1.50 |
0.44
0.50
0.56
0.62
0.69 |
0.62
0.62
0.62
0.62
0.62 |
4
4
4
4
4 |
1/2 1/2 1/2
1/2 1/2 |
2
21/2
3
31/2
4 |
6.00
7.00
7.50
8.50
9.00 |
4.75
5.50
6.00
7.00
7.50 |
3.62
4.12
5.00
5.50
6.19 |
2.00
2.50
3.00
3.50
4.00 |
0.75
0.88
0.94
0.94
0.94 |
0.75
0.75
0.75
0.75
0.75 |
4
4
4
8
8 |
5/8 5/8 5/8
5/8 5/8 |
5
6
8
10
12 |
10.00
11.00
13.50
16.00
19.00 |
8.50
9.50
11.75
14.25
17.00 |
7.31
8.50
10.62
12.75
15.00 |
5.00
6.00
8.00
10.00
12.00 |
0.94
1.00
1.12
1.19
1.25 |
0.88
0.88
0.88
1.00
1.00 |
8
8
8
12
12 |
3/4 3/4 3/4
7/8
7/8 |
14
16
18
20
24 |
21.00
23.50
25.00
27.50
32.00 |
18.75
21.25
22.75
25.00
29.50 |
16.25
18.50
21.00
23.00
27.25 |
13.25
15.25
17.25
19.25
23.25 |
1.38
1.44
1.56
1.69
1.88 |
1.12
1.12
1.25
1.25
1.38 |
12
16
16
20
20 |
1
1
11/8
11/8
11/4 |
30
36 |
38.75
46.00 |
36.00
42.75 |
33.75
40.25 |
29.25
35.00 |
2.94
3.56 |
1.38
1.62 |
28
32 |
11/4
11/2 |
|