Polyurethane direct buried insulation pipe, using good raw materials, finishing processing such pipeline materials is more reliable. And the construction must be correct and reasonable, so that the service life of the pipeline is longer. So you know? What are the precautions for the construction of polyurethane direct buried insulation pipes? rubber screw barrel,Pvc Extruder Screw,Silicone Rubber Screw Barrel,Rubber Head Screw Zhejiang Zhongsu Screw Co., Ltd. , https://www.zhongsuscrew.com
Polyurethane direct buried insulation pipe, using good raw materials, finishing processing such pipeline materials is more reliable. And the construction must be correct and reasonable, so that the service life of the pipeline is longer. So you know? What are the precautions for the construction of polyurethane direct buried insulation pipes?
Undoubtedly, the precautions in the construction of polyurethane direct buried insulation pipe, Huasheng Pipeline and you to understand:
First of all, the polyurethane insulation pipe should be careful during transportation, loading and unloading to avoid bumping and avoid sun exposure. In order to ensure the quality of the pipeline before construction; in fact, the groove of the polyurethane insulation pipe should be smooth, to ensure the bottom of the tank is dry, and need to be a thick sand cushion of about 200mm thick, the sides and upper part of the insulation pipe should cover at least 200mm thick Fine sand. The purpose is to prevent the hard object from damaging the outer casing, and the second is to use the fluidity of the sand to fully fill the gap around the pipe to ensure sufficient friction; and then the polyurethane insulation pipe to compensate the direct buried pipeline must be designed according to the design. It is required to preheat, to ensure the constant temperature when preheating to the design temperature, and to ensure that the temperature can be cooled until the one-time compensator is finished or the backfill is completed. Finally, the polyurethane insulation pipe installation is completed with a hydraulic pressure test of 1.5 times working pressure. After the water pressure test is passed, the interface foaming treatment can be carried out to ensure the moisture of the surface of the joint steel pipe, the heat-insulating end faces on both sides and the surface of the overlapped casing. Oil, impurities and end face protection are removed. Also note that the ambient temperature of the interface when using polyurethane foam should not be lower than 10 °C.
It is believed that it is strictly in accordance with these technical requirements. The construction of polyurethane direct buried insulation pipe is reasonable, the application is more reliable, and the service life is long!
Insulation pipe, direct buried insulation pipe, prefabricated insulation pipe
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