Manufacturer of polyurethane insulated spiral steel pipe heat source and heat transfer insulation pipe

Description :

　　Kaishun Yuan Group is a large-scale prefabricated direct buried polyurethane insulated steel pipe manufacturer, mainly produced by Longdu Group; Black jacket polyurethane insulation steel pipe, polyurethane foam insulation steel pipe, glass rock wool insulation steel pipe, steel sleeve steam insulation steel pipe, Longdu Group is a high-quality insulation and anti-corrosion steel pipe manufacturer that strictly follows the national anti-corrosion and insulation steel pipe execution standards. We provide you with preferential prices for pre embedded polyurethane insulation steel pipes. Welcome to negotiate Prefabricated polyurethane direct buried insulation pipes have good mechanical and thermal insulation properties, and can withstand high temperatures up to 120 degrees Celsius under normal circumstances. By modifying or combining with other insulation materials, they can withstand high temperatures up to 180 degrees Celsius and are suitable for insulation projects of various cold and hot water high and low temperature pipelines.

　　Advantages:

　　1. Reduce project costs.

　　According to relevant departments' calculations, double pipe heating pipelines can generally reduce project costs by about 25% (using fiberglass as a protective layer) and 10% (using high-density polyethylene as a protective layer).

　　Low heat loss and energy conservation.

　　The thermal conductivity of prefabricated polyurethane buried insulation pipe is: λ=0.0130.03kcal/m& middot; h& middot; oC， It is much lower than other commonly used pipeline insulation materials in the past, and the insulation effect is increased by 49 times. Moreover, its water absorption rate is very low, about 0.2kg/m2. The reason of low water absorption is that the closed cell ratio of polyurethane foam is up to 92. Low thermal conductivity and low water absorption, combined with insulation layer and high-density polyethylene or fiberglass protective shell with good waterproof performance, have changed the traditional situation of "wet cotton jacket" for laying heating pipelines in underground trenches, greatly reducing the overall heat loss of heating pipelines. The heat loss of the heating network is 2, which is less than the international standard requirement of 10.

　　3. Anti corrosion, good insulation performance, and long service life.

　　Prefabricated polyurethane directly buried thermal insulation pipe can play a good anti-corrosion role because the polyurethane rigid foam thermal insulation layer is closely bonded to the steel pipe skin, which can isolate the infiltration of air and water. At the same time, its foam pores are all closed, and its water absorption is very low. The high-density polyethylene shell and fiberglass shell both have good anti-corrosion, insulation, and mechanical properties. Therefore, the outer skin of the working steel pipe is difficult to be eroded by external air and water. As long as the water quality inside the pipeline is well treated, according to foreign data, the service life of prefabricated polyurethane buried insulation pipes can reach more than 50 years, which is 34 times longer than the service life of traditional trench laying and overhead laying.

　　4. Less land occupation, faster construction, beneficial for environmental protection and reducing construction disturbance to residents.

　　Directly buried heating pipelines do not require the construction of large trenches, only the insulation pipes need to be buried underground, thus greatly reducing project land occupation, reducing excavation volume by about 50%, and reducing civil engineering masonry and concrete volume by 90%. At the same time, the processing of insulation pipes and on-site trenching are carried out in parallel, and only on-site joints are required, which can greatly shorten the construction period. Due to the reduction in transportation of bricks, cement, sand and gravel, and surplus soil, the emissions of vehicle exhaust, dust, and noise during the construction process have been reduced, thereby protecting the environment.

AfterSalesService :

• Polyurethane insulated steel pipe