Manufacturer of direct buried polyurethane foam insulation pipe

Description :

　　Polyurethane direct buried insulation pipes have excellent characteristics such as efficient insulation, waterproofing, anti-corrosion, thermal insulation, sound insulation, flame retardancy, cold resistance, anti-corrosion, light capacity, high strength, easy and fast construction, and are not afraid of plant roots. They have become an indispensable material for insulation, waterproofing, sealing and other industrial sectors such as construction, transportation, petroleum, chemical, power, refrigeration, etc. Polyurethane direct buried insulation pipes are used for insulation and cooling engineering of various indoor and outdoor pipelines, centralized heating pipelines, air conditioning pipelines, chemical and other industrial pipelines, oil pipeline engineering, steam and other pipeline engineering. Polyurethane direct buried insulation pipelines can reduce heat loss by more than 40% compared to ordinary pipelines in frozen soil layers of 0.6-1.2 meters. Their service life is more than 3-5 times longer than other insulation and anti-corrosion materials, and can reach 30-50 years. Polyurethane direct buried insulation pipes have become a relatively mature technology in some developed countries abroad, bringing great economic and social benefits to users with their excellent performance, convenient construction, and long service life. This energy-saving technology is being increasingly widely applied in China Polyurethane composite materials have the characteristics of fine pores, good flow, sufficient toughness, and high strength. They are suitable for use on pipes of different sizes and specifications, with uniform density distribution. At the same time, they can adapt to low-temperature environments for construction, and special varieties can withstand temperatures below minus 200 degrees Celsius for a long time.

　　Attention: When storing, it must be tightly sealed to prevent the escape of foaming agent and the entry of water vapor. It should be placed in a dark, dry, cool, and ventilated place, away from heat sources, and strictly protected from direct sunlight. The actual value varies according to the processing conditions, and can be adjusted according to the customer's actual situation. The opal time is 540 seconds. The gel time is 50130 seconds. The non stick time is 100180. The overall density is kg ／ m3. 2332. The demoulding time is 510 minutes. Typical foam performance: molding density kg ／ m3. 3280. Closed cell rate%>90. Thermal conductivity w ／ m.k ＜ 0.023. Compression strength Kpa ＞ 150. Dimensional stability,& plusmn; 30，48hr ＜1％

　　Advantages: 1. Polyurethane insulation pipes have excellent insulation performance, with heat loss only 25% of traditional pipes, which can reduce costs and save energy. 2. Excellent waterproof function, good acid resistance, alkali resistance, and corrosion resistance. 3. Long service life, up to 30-50 years. 4. The pipe diameter can be large or small, ranging from DN15 to DN600; The insulation thickness can be thick or thin, ranging from 15-500mm. 5. It is widely used in heating pipelines, refrigeration pipelines, chemical pipelines, industrial pipelines, etc.

　　Main physical properties and project index requirements of pipeline polyurethane

　　1 density, kg/m3 40

　　2 thermal conductivity, (23& plusmn; 2) W/(M? K) 0. compressive strength, KPA water absorption, 3

　　5 dimensional stability, 1.0

　　6 self extinguishing self extinguishing

　　7 Corrosion resistance, alkali resistance, acid resistance

　　Construction technology of polyurethane pipeline insulation

　　When using rigid polyurethane as pipeline insulation material, the construction methods generally include one-time foaming molding method and prefabricated foaming method, and the construction process of one-time foaming molding method is also known as injection (or pouring) foaming and spray foaming.

　　Construction precautions: When pouring polyurethane, the construction environment temperature should be between 10-40 and the relative humidity should be less than 80. 2. The hard foam polyurethane insulation layer after infusion should be fully matured before proceeding to the next process of construction. 3. The surface of the hard foam polyurethane insulation layer after infusion should be smooth, without obvious depressions or protrusions.

AfterSalesService :

• Polyurethane insulation pipe