Description
Elbows are pipe fittings that change the direction of the pipe. According to the angle, there are three most commonly used: 45 °, 90 ° and 180 °.
In addition, according to the needs of the project, there are other abnormal angle elbows, such as 60 °.
90 degree elbow is a common pipe fitting, which is usually used when two sections of pipes to be connected are at a 90 ° right angle.
According to the difference of long and short radius, 90 ° elbow can be divided into long radius elbow and short radius elbow.
Technical data sheet
| DN | Outside diameter | 90 degree elbow | ||
| A series | B series | Long radius | Short radius | |
| 15 | 21.3 | 18 | 38 | – |
| 20 | 26.9 | 25 | 38 | – |
| 25 | 33.7 | 32 | 38 | 25 |
| 32 | 42.4 | 38 | 48 | 32 |
| 40 | 48.3 | 45 | 57 | 38 |
| 50 | 60.3 | 57 | 76 | 51 |
| 65 | 76.1(73) | 76 | 95 | 64 |
| 80 | 88.9 | 89 | 114 | 76 |
| 100 | 114.3 | 108 | 152 | 82 |
Characteristic
90 degree long radius elbow refers to the pipe outer diameter with radius of curvature equal to 1.5 times, that is, r=1.5d. Generally, the pipe diameter is relatively large, which is used for large-scale pipeline systems such as petroleum and chemical industry.
A 90 degree short radius elbow means that its radius of curvature is equal to the outer diameter of the pipe, that is, r=d. Generally, the pipe diameter is relatively small, which is common in general domestic hot water or power piping systems.
Application
90 degree elbow is mainly used in petrochemical, medical and health, electric power, aerospace, military, fire protection, metallurgy, shipbuilding, gas, nuclear power, environmental protection and other departments and fields that need high pressure and precision dimensions.
