Polyurethane Insulating Steel Pipe Manufacturer Introduces What Does It Need to Pay Attention to During Construction

1. In the construction process, not only to ensure the smooth groove, but also to ensure that the bottom of the groove is dry, and the need for 200 mm thick fine sand cushion. The purpose is to avoid the damage of hard material to the insulating outer sleeve. The second is to fill the gap around the pipeline with the activity of sand to ensure sufficient friction.

2. At the end of the polyurethane insulating pipe device, the water pressure test of 1.5 times the task pressure should be stopped, and the foaming treatment of the interface can be stopped before the water pressure test is qualified.

3. The one-time compensation buried pipeline must meet the design requirements and keep the temperature constant when preheating to the design temperature.

4. When polyurethane insulating pipe enters buildings and ditches, it should be pierced with wall casing and fixed piers at the end of excavation.

5. Backfill should be compacted by layers. The quality of backfill soil is very important for the safe operation of pipelines and must be paid attention to.

There are many ways to classify the varieties of polyurethane insulating pipes. For example, it can not only be classified according to the laying method, the outer protective layer and the characteristics of the delivery medium, but also according to the temperature of the delivery medium. According to the laying method of polyurethane insulating pipe, we can divide it into two kinds: directly buried polyurethane insulating pipe and overhead polyurethane insulating pipe. However, if the outer protective layer of polyurethane insulating pipe is stopped, we can divide it into four categories: polyurethane insulating pipe with high density polyethylene outer protective layer, polyurethane insulating pipe with FRP outer protective layer, polyurethane insulating pipe with steel outer protective layer and other insulating pipes with outer protective layer. If we stop classifying according to the delivery medium of polyurethane insulation pipe, we can divide it into: steam directly buried polyurethane composite insulation pipe for steam delivery, low temperature resistant polyurethane insulation pipe for water supply, and buried rigid polyurethane foam plastic anticorrosive insulation pipe commonly used in polyurethane prefabricated insulation pipe and petroleum industry. According to the temperature of the delivery medium, it can be divided into three types: low temperature polyurethane insulating pipe, room temperature polyurethane insulating pipe and cryogenic polyurethane insulating pipe.

In summary, all the above-mentioned Shandong Hipper Pipe Technology Development Co., Ltd. provides more knowledge of polyurethane insulation pipe manufacturers. Welcome to our website: https://www.sdhpgy.com. Thank you for your support!