Product introduction of double flange limit expansion joint
The expansion joint is mainly used for the valve in the pipeline to protect the pipeline and the valve from the damage caused by the axial thrust and thermal expansion and contraction of the pipeline. In the long distance pipeline can effectively absorb the ground settlement on the axis of the pipeline, to ensure that the flange connection pipeline or welded pipeline does not leak and does not produce cracks, for the circulating water pipeline in the media for the corner of the added thrust can also be absorbed, custody of the channel in the start does not produce a large vibration affect the sealing of the pipeline, so that hard connection into a flexible connection.
Also in the pipeline assembly using the expansion principle, you can adjust the length of the telescope to facilitate the lifting of the pipeline. In close proximity to the valve position in the installation of the expansion device is also convenient valve installation, disassembly, maintenance. Double flange expansion joint installed in the pipe nut tight retaining ring in the gland nut, due to the influence of each other under the slope, pressure and the role of the outer ring of the connection pipe seal. When the foundation sinks, the pipe can be tilted and ensure the seal without leakage, thus achieving the purpose of automatic compensation.
Double flange expansion joints a wide variety of installation method requirements are not the same for chemical, petroleum, environmental protection and other pipeline projects, before the construction of the installation of expansion joints in the pipeline has a corresponding manufacturing, inspection, installation and other technical standards, expansion joints in the pipeline application specifications are numerous, technical, high quality requirements; and the appropriate installation methods and techniques require us to continue to learn and explore.
