Introduction
The double-flange limit expansion joint is composed of main components such as body, sealing ring, gland, and telescopic short tube. On the basis of the original performance of the loose sleeve expansion joint, a limit device is added, and the double nut is used to lock the maximum expansion and contraction amount. The pipeline can expand and contract freely within the allowable expansion and contraction amount. Once the maximum expansion and contraction amount is exceeded, it will act as a limit to ensure the safe operation of the pipeline.
Execution standard
Design standard: GB/T12465-2007
Flange standard: GB/T9113-2010
Experimental standard: GB/T13927-2008
Material of main parts
|
NO. |
name |
quantity |
material |
|
1 |
ontology |
1 |
Q235A、20 |
|
2 |
sealing ring |
1 |
NBR |
|
3 |
gland |
1 |
Q235A、20 |
|
4 |
Limit short pipe flange |
1 |
Q235A、20、16Mn |
|
5 |
nut |
4n |
Q235A、20Cr13、1Cr18Ni9Ti |
|
6 |
long stud |
n |
Q235A、20Cr13、1Cr18Ni9Ti |
|
7 |
stud |
n |
Q235A、20Cr13、1Cr18Ni9Ti |
Structure and dimensions
