Steel jacket pipe insulation prefabricated buried pipe insulation steel jacket specification

Steel jacket pipe insulation specifications - selling steel jacket pipe insulation Which steel jacket pipe insulation from the inside to the outside of the first layer is divided into three layers: Working pipe layer according to the design and requirements of customers generally use seamless (GB8163- 87) spiral welded pipe (GB9711-88; SY / T5038-92) and Longitudinal (GB3092-93). Advanced steel surface after shot blasting process, steel rust rating up to GB8923-1988 standard Sa2 grade, surface roughness up GB6060.5-88 standard R = 12.5 m. Second layer: polyurethane foam insulation with high-pressure steel pipe machine in the cavity between the outer protective layer is formed of a one-time injection of rigid polyurethane foam liquid from. Commonly known as "pipe-in-pipe foaming process." First, its role waterproof, and second, the insulation, the third is to support the weight of the heat network. When the transmission medium temperature: -50 ℃ -120 ℃, the selection of rigid foam made polyaminocarboxylic isocyanurate insulation. Third layer: anti-corrosion pipe coating pipe insulation is a kind of steel corrosion resistance, and has good insulation properties, has been widely used and promoted in building construction, and constantly improve and spread. Corrosion pipe insulation have different processing types and methods, different processing method to determine the pipe have different properties and functions, and range will change. Corrosion pipe insulation production needs to be in accordance with national standards of production, processing methods follow different standards different, but must comply with national production standards, and must strictly follow and execute. 1, excellent wear resistance, abrasion resistance is carbon seven times; 2, the friction coefficient is small, not good adhesion; 3, high impact strength, particularly excellent low-temperature impact resistance, is now known plastic the highest; 4, excellent chemical stability; except for a few of its corrosive solvent, the common inorganic and organic acids, bases, salts and organic solvents such materials are not corrosive. UHMWPE is chemically similar to Teflon stability, it is an inert material. 5, excellent anti-aging properties, under natural sunlight conditions, high density polyethylene aging life of 50 years. Buried pipe insulation in China is a new type of insulation material. He has a convenient construction, engineering, small footprint, small amount of maintenance, long life, low coefficient of thermal insulation, energy-saving advantages. Buried insulation cladding using the formula 2/5 can reduce heat loss than traditional grooves, so Buried pipe insulation is best to replace the traditional forms of insulation products. The products are widely used in petroleum, chemicals and heating pipe insulation. Cangzhou Heng-Pipeline Limited ||| steel jacket pipe insulation specifications - selling steel jacket pipe insulation Which is good