1、斜接支管台上端型式有三种先用时应注明:
WLL 对焊 butt weld
SLL 承插口 Socket weld
TLL 锥管螺纹(内) NPT 或Rc(订货时应予说明 Specify when order)
2、3000Lb级斜接支管台适用于下列支管壁厚等级(用于英制管)
Sch40 Sch80 STD XS
3、订货时必须说明主管及支管公称尺寸、压力等级、材料牌号,如用于公制管,应注明主管及支管外径和壁厚尺寸。
SLL 4"×1/2" 3000LB 20 (用于英制管 British series)
WLL 108×18 3000LB 20 (用于公制管 Metric series)
承插焊支管台参数表 |
执行标准:MSS SP-97、GB19326、Q/FG11 |
支管公称通径
Nominal Diameter of Branch |
适用主管公称通径
Nominal Diameter of Suited Main Pipe
不小于≥
|
L |
E |
DN |
NPS |
mm |
in |
3000LB |
6000LB |
3000LB |
6000LB |
6
|
1/8 |
20
|
3/4 |
19.1
|
- |
15.9
|
- |
8
|
1/4 |
20
|
3/4 |
19.1
|
- |
15.9
|
- |
10
|
3/8 |
25
|
1 |
20.6
|
- |
19.1
|
- |
15
|
1/2 |
32
|
1.1/4 |
25.4
|
31.8 |
23.8
|
19.1 |
20
|
3/4 |
40
|
1.1/2 |
27.0
|
36.5 |
30.2
|
25.4 |
25
|
1 |
50
|
2 |
33.3
|
39.7 |
36.5
|
33.3 |
32
|
1.1/4 |
65
|
2.1/2 |
33.3
|
41.3 |
44.5
|
38.1 |
40
|
1.1/2 |
65
|
2.1/2 |
34.9
|
42.9 |
50.8
|
49.2 |
50
|
2 |
80
|
3 |
38.1
|
52.4 |
65.1
|
69.9 |
60
|
2.1/2 |
100
|
4 |
39.7
|
- |
76.2
|
- |
80
|
3 |
125
|
5 |
44.5
|
- |
93.7
|
- |
100
|
4 |
150
|
6 |
47.6
|
- |
120.7
|
-
|
|
|