The direct buried injection filled sleeve compensator has a similar structure to the sleeve compensator and is suitable for application in low-temperature water ..

The structure of the direct buried injection filled sleeve compensator is similar to that of the sleeve compensator. For the injection filled sleeve compensator used in low-temperature water networks, as long as the high smoothness sliding surface of the inner sleeve is protected, it can be used for underground burial. Under normal operation conditions (excluding the influence of earthquakes, subsidence and other factors), it can have the same service life as the pipeline and does not require maintenance

The structure of the direct buried injection filled sleeve compensator is similar to that of the sleeve compensator. For the injection filled sleeve compensator applied in low-temperature water networks, as long as the high smoothness sliding surface of the inner sleeve is protected, it can be used for underground burial. Under normal operation conditions (excluding the influence of earthquakes, subsidence and other factors), it can have the same service life as the pipeline and does not require maintenance. For underground installation of steam pipelines, it is recommended to use composite injection filled sleeve compensators to build maintenance wells.

The direct buried injection filled sleeve compensator is suitable for pipelines laid in a straight line, consisting of an inner sleeve, an outer sleeve, a combination of check and injection materials, a tail sleeve, a packing chamber, guide bearings, etc.

The structural characteristics of directly buried injection filled sleeve compensator:

(1) By the relative sliding motion of the inner sleeve along the axis of the pipeline, the thermal stress of the pipeline is released by absorbing the thermal elongation and contraction of the pipeline.

(2) Special sealant is injected through a check injection nozzle to achieve sliding sealing between the inner sleeves under balanced sealing pressure.

(3) By relying on guide bearings to bear the lateral force of the pipeline, high coaxiality between the inner and outer sleeves can be achieved, preventing scratches on the electroplated inner sleeve and making the sealing of the pipeline more reliable and durable during operation.

(4) The inner sleeve extends into the end of the outer sleeve and adopts a sturdy anti slip design, making the product safer.