The thickness of pipeline insulation is not constructed reasonably according to the design requirements. Mainly based on experience in construction, with a limited understanding of insulation requirements. The surface is rough and not aesthetically pleasing. Mainly due to careless operation, inappropriate size of insulation material, uneven force during wrapping, and unreasonable position of overlapping. The outer protective pipe of pipeline insulation can effectively protect the insulation layer from the erosion of groundwater and withstand certain pressure. According to the materials, it does not mainly include steel structures, high-density polyethylene plastics, and glass fiber reinforced plastics.

In addition, the construction process of pipeline insulation has always been a concern for many friends. Because some friends are curious that this seemingly ordinary pipeline can actually resist corrosion and has insulation function, so everyone wants to know how this pipeline is produced. At the same time, the polyurethane pipeline insulation can be freely moved to support the weight of the working pipe and protect the glass wool insulation layer. The insulation layer of centrifugal glass wool buried pipeline has good high-temperature insulation performance, and there is no significant change in the geometric dimensions and physical properties after soaking and drying.

The insulation layer of pipeline insulation consists of two types of insulation materials. The construction of insulation layer and insulation layer cannot be firmly bonded together by the operation of heat medium. The inner layer is centrifugal glass wool felt, composite silicate, glass foam and other new high temperature resistant insulation materials. It is also important to carry out corresponding rust prevention work, but the insulation material for polyurethane buried pipelines will inevitably appear during use. Rust prevention and appropriate rust prevention treatment can effectively extend the service life of prefabricated polyurethane buried pipeline insulation.