Polyurethane insulation buried steam pipe manufacturers supply

Polyurethane insulation buried steam pipe manufacturers supply prefabricated buried pipe insulation Description: prefabricated buried pipe insulation, also known as pre-heat pipe, is a good insulation properties, plus safe, reliable, low construction cost of prefabricated buried pipe insulation. Effective solution to the urban central heating in 130 ℃ -600 ℃ high temperature heat transport prefabricated insulating pipe insulation, sliding lubrication and waterproofing exposed pipe ends. Prefabricated buried pipe insulation / prefabricated pipe insulation not only has the traditional trench and overhead laying pipeline incomparable advanced technology, practical performance, but also has significant social and economic benefits, but also a powerful heating energy-saving measures. Prefabricated insulation parts are buried heating pipe technology, marking China heating pipes technological development has entered a new starting point. Prefabricated buried pipe insulation / prefabricated pipe insulation purposes: prefabricated insulating pipe fittings are widely used in liquid, gas pipeline network, chemical pipe insulation works in petroleum, chemical, central heating network, central air conditioning and ventilation pipes, municipal engineering. Prefabricated buried pipe insulation characteristics: heat pipe is made of prefabricated steel, glass steel jacket, fiberglass shell structure, characterized by: further comprising a heat insulation layer, a lubricating layer, elastomeric seals. The utility model prefabricated pipe insulation effectively solve urban central heating in 130 ℃ -600 ℃ high temperature heat transport with prefabricated buried pipe insulation / prefabricated insulating pipe insulation, sliding lubrication and waterproofing exposed pipe ends. Buried steam pipe insulation corrosion three-tier price structure from the inside out - Langfang Venus Chemical Co., Ltd. The first layer: Working pipe layer according to the design and requirements of customers generally use seamless (GB8163-87) spiral 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. The third layer: high-density polyethylene protective layer of a certain thickness prefabricated black (yellow) plastic pipe, its effect one protection against mechanical hard polyurethane insulation material damage, and second, anticorrosion and waterproof