Underground Pre Insulation Pipe with HDPE Polyethylene Jacket Canghai Nuclear

  • Length:4.8m-12m(negotiable)
  • WT: SCH10~SCH160  Or  STD,ect.
  • Type:Welded or Seamless
  • Standard & Grade:API 5L - Gr.B/X42/X46,etc.

Hebei Canghai Nuclear Equipment Technology Co., Ltd. 3PE anti-corrosion steel pipes feature advanced protection with superior corrosion resistance, water impermeability, and high mechanical strength, making them the preferred choice in oil pipelines for long-term reliability and durability.

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PRODUCTS DETAILS

Product Description

PE insulation pipes are also known as PE outer protection pipes, outer casings, or sleeves. The direct-buried polyurethane thermal insulation pipe features a high-density polyethylene (HDPE) protective layer on the outside, a polyurethane rigid foam filling as the thermal insulation layer in the middle, and a steel pipe as the inner layer.Polyurethane direct-buried thermal insulation pipes exhibit excellent mechanical properties and thermal insulation performance, along with strong impact resistance. Under normal conditions, they can withstand high temperatures ranging from 120°C to 180°C, making them suitable for thermal insulation projects of various cold and hot water pipelines and high-low temperature pipelines.

 

steal pipe with Polyurethane foam insulation and HDPE jacket sleeve

Name  Pre-insulated Pipe
Brand Hebei Canghai Nuclear
structure work steel pipe/polyurethane insuation layer /HDPE outer protection pipe
the material of insuation layer polyurethane foam
 Installation Method 1.cold installation
2.Prestress Installation
3.Preheat Installation Method
4.One-Time Compensator Installation Method

 
Main Indexes of Polyurethane insulation layer 
 

indexes preference Standard unit standard requirement
Density CJ/T114-4.3.2 kg/m3  ≥60
Average CJ/T114-4.3.1 mm ≤0.5
Percentage of close area CJ/T114-4.3.1 % ≥ 88
Compressive strength  CJ/T114-4.3.3 MPa ≥ 0.3
Water Absorption CJ/T114-4.3.5 % Immersion in boiling water 90 minute,bubble water absorption should be not more than 10%
Cavity CJ/T114-4.3.1   ≤ 0.033

 
Specification of pre-insulated Pipe
 

Specifications
(mm)		 steel pipe OD×Thickness
(mm)		 Outer protection tube diameter ×Wall thickness
(mm)		 Insulation thickness
(mm)		 Unit weight
Kg/m
32/90 32×2.8 90×2.5 26.5 3
45/110 45×2.8 110×2.5 30.0 4
57/120 57×3.0 120×2.5 29.0 6
60/125 60×3.5 125×3.0 29.5 7
76/140 76×4.0 140×3.0 29.0 9
89/160 89×4.0 160×3.0 32.5 11
108/180 108×4.0 180×3.0 33.0 13
133/200 133×4.5 200×3.2 30.3 17
159/250 159×4.5 250×3.9 41.6 22
219/315 219×6.0 315×4.9 43.1 39
273/365 273×6.0 365×5.6 40.4 49
325/420 325×7.0 420×7.0 40.5 67
377/500 377×7.0 500×7.8 53.7 81
426/560 426×7.0 560×8.8 58.2 94
478/600 478×7.0 600×8.8 52.2 104
529/630 529×7.0 630×9.8 40.7 114
529/655 529×7.0 655×9.8 53.2 117
630/760 630×8.0 760×11.5 53.5 158
720/850 720×8.0 850×12.0 53.0 181
820/960 820×10.0 960×14.0 56.0 252
920/1055 920×10.0 1055×14.0 53.5 281
1020/1155 1020×10.0 1155×14.0 53.5 312
1220/1380 1220×12.0 1380×16.0 64.0 444
1420/1602 1420×14.0 1602×16.0 75.0 590

 

Advantage of the pre-insulated pipe   

1. good insulation properties
2. low heat loss
3.  heat loss is 25% of the traditional pipe.
4. energy saving
5.  about 30 yeas move the service life, low cost
6. has a strong waterproof and corrosive resistance and high mechanical strength
7. no attached trench ,can be directly buried in the ground or water.

 

Standard API 5L
Grade PSL-1 API 5L - Gr.B/X42/X46/X52/X60/X70 etc.
( Material) PSL-2 ISO3183 - L245/L290/L320/L360/L415/L485 etc.
Minimum Order Quantity 1 Ton
    Outside Diameter Ranges PSL-1 0.405-80(in) or 10.3mm-2032mm
PSL-2 4 1/2 -80(in) or 114.3mm-2032mm
          Wall Thickness Ranges SCH10~SCH160  Or  STD,XS,XXS  Or  1.73mm~59.54mm
Length For 20Ft Container 4.8m-5.8m
(negotiable) For 40Ft Container 4.8m-12m
        Most common choice 6m, 12m
Type Welded ERW,LSAW/SSAW
Seamless Cold Drawn,Hot Finished,Hot Expanded
Cap (negotiable) Pipe size should under DN600
Pipe End Plain end All sizes
Bevel end Pipe size above DN50, and the thickness should greater than 3.2mm
Our advantages ·Diverse products(Steel pipes, pipe fittings, other fittings)
·Any third party inspection is accepted by we company.
·Quick response in quotation,delivery,after-service.
·Focus on pipe & tube solution for project application.
  1. Nominal size of Pipe Minimum thickness of normal coating in mm
    Up to DN100 1.8 
    Over DN100 up to DN250 2.0 
    Over DN250 to below DN500 2.2 

     

    The products can also be customized according to the customer's special design and requirements.

     

     

    Our Factory

    The crystallization of 20 years manufacturing experience,
    all products are fully inspected leaving the factory, 
     acheive 100% qualified, 
     ensuring that all products are exquisite.

     

     

     

    Application And Usage

    Polyurethane ensures high resistance to chemicals, condensation, and corrosion, thus guaranteeing the long-term service life of pipelines. It demonstrates high resistance to extreme high and low temperatures (from -50°C to 135°C) and exhibits excellent insulation performance due to its low thermal conductivity coefficient (λ). For these reasons, it is often selected as a pipeline thermal insulation material. Polyurethane helps maintain the temperature of pipelines, avoid heat loss from pipelines, and prevent pipelines from freezing or bursting in cold climates.
     
    The thermal conductivity coefficient (λ) value of polyurethane is lower than that of other insulation materials such as wood, rock wool, and polystyrene, which is attributed to the high number of closed cells in rigid polyurethane foam. Therefore, the thermal insulation performance of rigid polyurethane foam is far superior to that of other insulation materials.
    1. Standard and special fittings
    2. Small and large pipes
    3. Wide radius bends
    4. Flanges
    5. Valves
    6. Support customized

     

     

    Packaging & Shipping

    To better ensure the safety of your goods, professional, environmentally friendly, convenient and efficient packaging services will be provided.