Product parameters
| Product Indexes | Reference Standard | Standard Requirement | Our product value |
| Outer protection pipe | |||
| Density (kg/m3 ) | CJ/T114-4.2.3.1 | ≥940 | 948.2 |
| Elongation at break (%) | CJ/T114-4.2.3.4 | ≥350 | 618 |
| Tensile yield strength (MPa) | CJ/T114-4.2.3.4 | ≥19 | 20.5 |
| Longitudinal shrinkage rate (%) | CJ/T114-4.2.3.5 | ≤3 | 1.23 |
| Long term Mechanical properties | CJ/T114-4.2.3.6 | >1500h(80℃,4.0 MPa)free from damage | Pass |
| The difference of the melt flow rate (g/10min) | CJ/T114-4.2.3.2 | ≤0.5 | 0.11 |
| Carbon Black Content % | CJ/T114-4.2.3.1 | 2.5±0.5 | 2.4 |
| Polyurethane insulation layer | |||
| Density (kg/m³) | CJ/T114-4.3.2 | ≥60 | 71.1 |
| Average pore size (mm) | CJ/T114-4.3.1 | ≤0.5 | qualified |
| Percentage of close area(%) | CJ/T114-4.3.1 | ≥88 | 94 |
| Compressive strength(MPa) | CJ/T114-4.3.3 | ≥0.3 | 0.58 |
| Water absorption(%) | CJ/T114-4.3.4 | Immersion in boiling water 90 minutes, bubble water absorption should be not more than 10% | ≤5.53 |
| Working steel pipe | |||
| Seamless steel pipe(≤DN150) | GB8163 | 20# | qualified |
| Spiral steel pipe(≥DN200) | GB/T9711 or SY/T5037 | Q235B | qualified |
Product Features
| Product name | Thermal insulation direct buried pipe |
| Length | 5.8m-12m, or by customer's requirements |
| Nominal diameter | DN25-1800 |
| Laid way | Buried |
| Application | Fluid Pipe, Natural gas, Gas, Oil, Hydraulic, chemical, drill, etc. |
| Production Standard | The national standard GB/T29047-2012, CJ/T114-2000, CJ/T155-2001 |
TECHNICAL INDICATORS
| Nominal diameter | OD ×Thickness(mm) | Outer protection tube diameter ×Wall thickness(mm) | Insulation thickness(mm) |
| 25 | 32x3 | 90x2.3 | 29 |
| 32 | 43x3 | 110x2.5 | 33 |
| 40 | 48x3 | 110x2.5 | 31 |
| 50 | 57x3 | 125x2.5 | 34 |
| 65 | 76x3.5 | 140x3 | 33 |
| 80 | 89x4 | 160x3.0 | 33 |
| 100 | 108x4 | 200x3.2 | 36 |
| 125 | 133x4.5 | 225x3.5 | 46 |
| 150 | 159x4.5 | 250x3.9 | 45.5 |
| 200 | 219x6 | 315x4.9 | 48 |
| 250 | 273x6 | 365x5.6 | 46 |
| 300 | 325x7 | 420x7 | 47.5 |
| 350 | 377x7 | 500x7.8 | 61.5 |
| 400 | 426x7 | 550x8.8 | 62 |
| 450 | 478x7 | 600x9.8 | 61 |
| 500 | 529x7 | 655x9.8 | 63 |
| 600 | 630x8 | 760x11 | 65 |
| 700 | 720x8 | 850x12 | 65 |
| 800 | 820x9 | 960x13 | 70 |
| 900 | 920x10 | 1054x14 | 67 |
| 1000 | 1020x12 | 1155x14 | 77 |
| 1200 | 1220x12 | 1380x15 | 80 |
| 1400 | 1420x14 | 1680x16 | 114 |
FAQ
FAQ
1. Are you a manufacturer or a trading company?
We are a manufacturer which has 30 years' history.
2. Can you accept OEM or ODM?
Of course, Logo is also acceptable.
3. What is the delivery time?
About 10-20 days after the contract signing.
4. What is your payment methods?
T/T L/C Paypal West Union and others .
5. Where is your manufacturer? How to visit it?
Our factory located in Binhai New Area, Tianjin, China. Mainly producing pre-insulated pipes, mineral wool insulation products and other insulating materials. You can take a plane to Beijing or Tianjin, then take a train to our company.
6. How do we control our products' quality?
We have professional quality control workers and quality inspection machine to control the entire production quality. We can also provide an inspection which was offered by a third party.
7. Can I customize some other sizes of products?
Yes! We can according to the customer's request. If you have any other questions, please don't hesitate, contact us.
SERVICE
SERVICE
1. Timely response: to your inquiry in 24 hours, quickly respond mails and provide solutions.
2. Free sample: Sample and trial order are accepted for the quality evaluation.
3. Shorter delivery time: Book the earliest vessel or plane to guarantee the delivery time.
4. Professional Services: Provide high or cold temperature solutions and professionals installation and technology services for you.
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