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FRP Insulation Pipe

FRP insulation pipe mainly be used for transferring spring water, geological fluid in oilfield and heat-supply system in cities.
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FRP insulation pipe

For FRP insulation pipe,fiber wound FRP pipe as conveying pipe,the polyurethane,etc material as central insulation layer,and the fiber wound FRP pipe as the external pressure bearing protection layer,it is a new type insulation pipe.

Characteristics

1. Light weight,high strength,convenient transportation,installation and maintenance,the heavy lifting equipment is not required.

2. Good Water conveying,smooth inner surface,small resistance for fluid,can save the cost for the pumping.

3. No fouling on the inner surface,through long-time use,the smooth inner surface also can be kept.

4. Low thermal conductivity,it is 0.39w/m•k,excellent insulation.

5. Good corrosion resistant,long service life,it can achieve above 30 years.

6. The insulation layer shall be performed in our factory,it can reduce the installation time.

Insulation effect of FRP insulation pipe with different diameter


Diameter
(mm)

Thickness
(mm)

Thickness of
Insulation
layer
(mm)

Thickness of outer
Protection pipe
(mm)

Outer diameter of outer protection pipe
(mm)

Length
(mm)

Environmental
Temperature
(℃)

Inlet
Temperature
(℃)

Outlet
Temperature
(℃)
100 5 42 3 200 1000 -45 80 79.88
150 5 42 3 250 1000 -45 80 79.52
200 5 41 4 300 1000 -45 80 79.32
250 5 41 4 350 1000 -45 80 79.20
300 6 39 5 400 1000 -45 80 79.16
400 6 39 5 500 1000 -45 80 79.02
500 7.5 37.5 5 600 1000 -45 80 78.90

Process description of FRP insulation pipe

FRP insulation pipe is foam interlayer structure,it is mainly composed of FRP pipe,polyurethane and FRP outer protection pipe.The excellent advantages for the polyurethane interlayer are cold resistant,heat insulation, light weight,big adhesive area with the outer protection pipe,uniform load transferring,good impact resistant,etc.

Process design

FRP pipe: according to the medium,concentration,temperature and pressure,to determine the resin,fiber,etc ray material and it's thickness & production process.

Polyurethane material: Adopt the rigid polyurethane foam with low thermal conductivity (0.016~0.08kcalm•h•℃) good cold resistant(- 45℃) and fabrication & processing.It's thickness depends on the working condition of the medium and the environmental condition.The temperature falling of the medium within the range of the design shall be ensured.

FRP outer protection pipe: it mainly plays the role of protecting the polyurethane,it also has low thermal conductivity,equals to 1/100~1/1000 of the metal's,it is 0.34 kcal/m•h•℃ approximately,in addition,it undertakes the external load,and be added UV absorber &ageing resistant agent,to extend the service life of the FRP insulation pipe.

Process flow

(Prefabrication ) → (assembly ) → (polyurethane foam injection ) → (Post treatment ) → (finishing) → (inspection) → (storage)

application

FRP insulation pipe can be used for hot spring water conveying,oilfield geothermic fluid conveying,heat supply system of city & factory,and other hot medium conveying,etc.


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  • Plant address:No. 1056 South Yingbin Street, Jizhou district, Hengshui City, Hebei 053200 China 
  • Office address:No.1217 Wangjiao International, Qiaoxi District, Shijiazhuang City, Hebei 050000 China
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