Buried pipe insulation to national standards

Buried pipe insulation with high efficiency insulation, waterproof, corrosion, insulation, noise, fire, cold, corrosion, light capacity, high strength, simple and quick construction, not afraid plant thorn other outstanding features, has become the construction, transport, petroleum, chemical , electricity, refrigeration and other industrial sectors insulation, water sealing, seals and other essential materials. Buried insulating pipe insulation for indoor and outdoor pipes, central heating pipes, central air conditioning ducts, chemical, pharmaceutical and other industrial pipes, cold engineering, pipeline engineering, transport gas and other pipeline projects. Life buried pipe insulation can in the 0.6-1.2 m permafrost buried heat loss than ordinary pipe can be reduced by 40%, working life than other insulation corrosion materials increased by 3-5 times, life can reach 30- 50 years. Buried pipe insulation polyurethane synthetic materials born in 1930s, has been used as an excellent insulation material and rapid development, its application has become increasingly widespread, but also because of its construction prefabricated buried pipe insulation specifications, polyurethane insulation pipe, polyurethane foam pipe insulation in a piping system, the elbow is to change the direction of the pipe fittings. Angularly points, and the three most commonly used, according to project needs in addition also includes other non-normal angle elbow. Elbow materials are cast iron, stainless steel, alloy steel, malleable iron, steel, nonferrous metals and plastics. And the pipe coupling methods are: direct welding most common way flanged, hot melt connection, fused connection, thread coupling and socket type coupling and the like. According to the production process can be divided into: welding elbow, pressing elbow, casting elbow. Other names: degree elbow, right angle bend, bend and so love. Polyurethane insulation with a small heat loss, compression performance, good corrosion waterproof performance characteristics. Especially for high water table areas. Compared with the traditional trench laying pipe, with good insulation properties, good corrosion, insulation performance, long life, easy construction and installation, small footprint, low construction cost series of advantages. It has been widely used in central heating, oil, chemicals, refrigeration and cold areas of water supply and other projects. Polyurethane insulation foam strength is small and soft bubble this phenomenon is caused by the imbalance of black and white material, and increase the proportion of black material can be (1: 1-1.05) Note is not so black material ratio is too large, otherwise, would bubble droplets brittle bubble also affect performance. Polyurethane insulation insulation effect: Polyurethane insulation effect compare with other materials. 2, the construction cost low buried pipe insulation compared to traditional pipeline trench, saving the cost of the entire trench and its subsidiaries support means. Direct buried laying lower cost than traditional perlite insulation trench laying works. Useful life of 60 years, information on domestic life of 16-year wet aging, thermal aging life of 60 years, some general information on heat pipes as the cause of the common pipeline, taking into account the role of internal corrosion, which also happened in the age 15 year or more, some of the information, the role of buried life of 50 years, laying empty frame of 20 years. Although statistics vary, but the buried pipeline corrosion insulation than traditional pipeline trench, life is much higher. Its minimum service life of 15 years.