pipe expander is a connector that compensates for the dimensional changes caused by thermal expansion and contraction in the pipe connection to . There are two commonly used pipe expansion joints, one is a rubber pipe expansion joint and the other is a metal pipe expansion joint.
Features of rubber pipe expansion joint:
1. It can reduce structural transmission noise and has strong vibration absorption ability during operation.
2. Small size, light weight, good elasticity, easy installation and maintenance.
3. During installation, it can produce axial, transverse, meridional and angular displacements, and is not restricted by the user's pipes not passing through the center and the flanges not being parallel.
4. Using special synthetic rubber can withstand high temperature, acid and alkali resistance, and oil resistance. It is an ideal product for chemical corrosion-resistant pipelines. The main features of metal pipe expansion joints are large expansion compensation, high temperature and pressure resistance.
There are strict regulations for installing steel telescopic devices. When installing, attention should be paid to the setting and stress of the fixed bracket. When pressing, the telescopic end of the telescopic device must not be pulled out due to cracking of the fixed bracket ; it must be designed and installed by the design department, otherwise the pipeline Prone to problems. Pay attention to the setting distance of guide bracket . The first guide bracket should be installed at a distance of 4D (4 times) from the compensator. The two guide brackets should be installed at a distance of 14D from the compensator. Click three to set it arbitrarily.
expansion joint can alleviate the blind plate thrust in pipeline operation. However, at the outlet of the water pump and at the corner of the pipeline, it should be used in sliding pipeline connections without fixed piers, unlimited piers and directional limit pier brackets. The force transmission joint and the limit force transmission joint are used to prevent the thrust from being concentrated at the corners of the pipeline or the proximal end of the pump, causing impact damage to the equipment. In fact, in the use of various pipelines, limit expansion joints (expansion joints) and anti-pull-off limit rubber joints are used to protect the pipeline to a certain extent, especially to facilitate the installation and maintenance of the pipeline. .
