Structural Features
● Bending radius: Short radius (SR) bending radius is generally smaller than 1.5 times the nominal diameter of tube. This design makes it possible for the elbow to occupy less space in the pipe system, but also to increase the resistance to fluid flow at the elbow.
● End Connection: Generally, the ends of the elbow are butt-welded, that is, the connection is achieved by welding with the end of the tube. This type of connection is solid, sealing is good, and is able to withstand higher pressure and temperature.
● Size Specification: Bolt Welding 90 ° Short Radius Elbow is available in various sizes, including nominal diameter, wall thickness, and so on, to satisfy different pipe systems.
Dimensions Butt welding 90° SR Elbow
|
Pipe Size |
OD at Bevel |
D |
Approx. Weight |
|||
|
NPS |
DN |
Std |
XS |
XXS |
||
|
|
|
mm |
mm |
kg |
kg |
kg |
|
0.51 |
16 |
- |
- |
0.2 |
0.4 |
- |
|
0.751 |
19 |
- |
- |
0.2 |
0.4 |
- |
|
1 |
25 |
33.4 |
25.0 |
0.7 |
0.7 |
0.9 |
|
1.25 |
32 |
42.2 |
32.0 |
0.9 |
1.1 |
1.8 |
|
1.5 |
40 |
48.3 |
38.0 |
0.9 |
1.5 |
2.4 |
|
2 |
50 |
60.3 |
51.0 |
1.8 |
2.6 |
4.4 |
|
2.5 |
65 |
73.0 |
64.0 |
4.0 |
4.6 |
8.4 |
|
3 |
80 |
88.9 |
76.0 |
5.7 |
7.7 |
12.8 |
|
3.5 |
90 |
101.6 |
89.0 |
7.7 |
9.9 |
18.7 |
|
4 |
100 |
114.3 |
102.0 |
9.9 |
13.4 |
24.3 |
|
5 |
125 |
141.3 |
127.0 |
16.5 |
24.3 |
41.9 |
|
6 |
150 |
168.3 |
152.0 |
26.5 |
39.7 |
70.5 |
|
8 |
200 |
219.1 |
203.0 |
50.7 |
77.2 |
132.3 |
|
10 |
250 |
273.0 |
254.0 |
94.8 |
116.8 |
- |
Application Scenario
● Petroleum and Gas Industry: Used in pipeline systems for the delivery of oil, gas, and other media to achieve a change in the direction of flow and to accommodate situations of limited space.
● Chemical Industry: In the course of chemical production, it is used to connect various devices and pipes to ensure that the flow of liquid follows a predetermined path, and to minimize the space occupied by the pipeline system.
● Electricity Industry: In the cooling system of power station, it is used to change the flow direction of the cooling water, which is suitable for the condition that the inner space of the plant is limited.
● Others: For example, ship building, paper making, food processing, etc., also widely used in the butt welding of 90 ° short radius.
