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Pressure bearing capacity standard of expansion joint

    Telescopic device It is installed in the pipeline to ensure the safe operation of the pipeline. It has the following functions: compensating the axial, transverse and angular thermal deformation of the absorption pipeline; absorbing equipment vibration to reduce the impact of equipment vibration on the pipeline; absorbing the deformation of the pipeline caused by earthquake and ground subsidence. The sleeve type expansion device provides great convenience for the installation and replacement of various water supply and drainage pipelines, water towers, pumps, water meters and valves, and plays a good role in regulating the expansion and contraction of long-distance pipelines due to temperature difference.

So in order to meet this requirement, how to install the product to meet the requirements?

1. The installation should be between large and small length, which can be adjusted according to the actual situation.

2. During the installation, loosen the bolts of the packing pressure plate, adjust the installation length, and install the two ends and pipes (or valves and water meters) according to the design requirements, and then check whether the packing is placed properly. After that, press on the packing pressure plate, and tighten the bolts with diagonal method, so as to prevent leakage.

3. The expansion device is installed behind the check valve.

4. Buttresses must be set at both ends of the expansion device, which does not bear axial tension, and can be added to prevent pulling off when necessary.

The function of the product is Compensator The displacement of the pipeline, which is the effect and effect that needs to bear pressure. What is the small and large pressure that the product can bear when it is used? If the pressure conditions can not meet the requirements, what is the impact on the pipeline and product?

Generally, under the pressure of 1.5MPa, Expansion joint It can work normally. If the pressure is increased, the expansion joint will be affected, resulting in failure to work normally, resulting in water seepage and even burst at the pipe joint. Therefore, the expansion joint can not bear infinite pressure. Of course, the pressure of expansion joint with different materials and uses is also different. The low pressure is about 0.25MPa, and the high is up to 6.4Mpa. These bearing pressures are mainly determined by the water flow and materials used in the design and production of the manufacturer.

The expansion joint produced by Shanghai Huanjing can effectively compensate and relieve the thrust of pipeline and blind plate, and is convenient for the installation, maintenance and replacement of pumps and valves. It is an ideal matching product in the pipeline installation and operation industry.

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