Lvliang Polyurethane Prefabricated Insulation Pipe Manufacturer

Lvliang Polyurethane Prefabricated Insulation Pipe Manufacturer

Heating engineering technicians digest through digestion,Absorb this * technology,It is driving the development of domestic pipeline laying technology to a higher level. The practical achievements over the past decade have fully proved that the laying method of black and yellow jacket insulation pipes is superior to traditional trench and overhead laying,It has many advantages. Directly buried insulation pipe is made of steel pipe for conveying medium,High density polyethylene outer sleeve,And the rigid polyurethane foam insulation layer between the steel pipe and the outer sleeve is closely combined. This is exactly why black and yellow jacket insulation pipes are used in heating projects in China Product Structure and Main Technical Indicators

Lvliang Polyurethane Prefabricated Insulation Pipe Manufacturer
one,Product Structure:
Directly buried insulation and anti-corrosion pipelines include anti-corrosion coating on the outer wall of steel pipes,Insulation layer and pressure resistant protective layer. Anti corrosion coating: usingGIIEpoxy enzyme asphalt coating,Has good acid resistance,alkali-resistant,Corrosion resistance. Insulation layer: polyurethane rigid foam. Pressure resistant protective layer: fiberglass protective layer.
two,Technical performance indicators:
1,Internal anti-corrosion layer
Moisture absorption rate:< 0.13g/m2.h
Tensile strength:> 2.94Mpa(30Kg/cm2)
Impact resistance strength:> 1.96Mpa(20Kg/cm2)
Alkali resistance: in20%The intensity does not decrease after soaking in alkaline solution for two months
Acid resistance: in30%Immersion in acid solution15The paint film is intact.

2,insulation layer
Bulk density:50-80Kg/m3
thermal conductivity0.019-0.027W/M.℃
(0.016-0.025Kcal/m.h.℃)
Compressive strength:> 196Kpa(2.0Kg/cm2)
Water absorption rate< 0.2Kg/m2
Operating temperature-100-150℃
Self extinguishing property: self-extinguishing upon flame removal
Dimensional stability:< ±3%
Corrosion resistance: alkali-resistant,acid-resistant

three,economic performance:
1,Good insulation effect: Polyurethane has a better insulation effect compared to other materials.
2,Low engineering cost
Compared with traditional trench pipelines, directly buried insulated pipelines,It can save the entire cost of the trench and its ancillary support devices. The cost of directly buried laying is lower than that of traditional perlite insulation trench laying projects. The service life is60year,According to domestic data, the wet aging period is16year,The thermal aging period is60year,Some materials introduce ordinary pipelines used as general thermal pipelines,Considering the effect of internal corrosion,Its service life is relatively short15Years and above,Some information introduction,The service life of being buried underground is50year,Empty rack laying is20Year. Although the data varies,But this type of buried anti-corrosion and insulation pipeline is better than traditional trench pipelines,The lifespan should be high. Its shorter lifespan is15Year.

four,On site construction and precautions:
one,After digging trenches according to the drawing requirements,The bottom of the trench needs to be flat,It should be a cushion layer in Gaza. When backfilling with soil,Surrounding the pipeline10Within centimeters,Fine soil should be used,To avoid damaging the outer protective layer.
two,During transportation and hoisting,A protective sleeve should be added outside the pipeline rope,Avoid contact between strangulation marks and sharp hard objects.

Sales method:
one,Come to the factory for processing. Users can directly bring steel pipes to our company to handle processing contracts.
two,On site processing. If the road is far away,Transportation difficulties,Our company can send personnel to the site for processing.
There are more and more types of insulation building materials on the market,The insulation products made of polyurethane materials are enough for consumers to watch for a period of time,The general consumer is still very concerned about the price when making a purchase,So I'll take a look firstPolyurethane direct buried insulation pipeThe market price. Considering the overall market development trend,Based on the development trend of prefabricated polyurethane insulation pipes,The price of buried insulation pipes has significantly decreased compared to the previous period,This is undoubtedly good news for consumers. The price factor has been determined,Let's take a look at the more important part,Technical Specifications,Polyurethane direct buried insulation pipeHow is heating provided.