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  • Pre Insulated Pipe
  • Pre Insulated Pipe
  • Pre Insulated Pipe
  • Pre Insulated Pipe
  • Pre Insulated Pipe

Pre Insulated Pipe

Thermal insulation direct buried pipe

Product parameters

Product IndexesReference StandardStandard RequirementOur product value
Outer protection pipe
Density (kg/m3 )CJ/T114-4.2.3.1≥940948.2
Elongation at break (%)CJ/T114-4.2.3.4≥350618
Tensile yield strength (MPa)CJ/T114-4.2.3.4≥1920.5
Longitudinal shrinkage rate (%)CJ/T114-4.2.3.5≤31.23
Long term Mechanical propertiesCJ/T114-4.2.3.6>1500h(80℃,4.0 MPa)free from damagePass
The difference of the melt flow rate (g/10min)CJ/T114-4.2.3.2≤0.50.11
Carbon Black Content %CJ/T114-4.2.3.12.5±0.52.4
Polyurethane insulation layer
Density (kg/m³)CJ/T114-4.3.2≥6071.1
Average pore size (mm)CJ/T114-4.3.1≤0.5qualified
Percentage of close area(%)CJ/T114-4.3.1≥8894
Compressive strength(MPa)CJ/T114-4.3.3≥0.30.58
Water absorption(%)CJ/T114-4.3.4Immersion in boiling water 90 minutes, bubble water absorption should be not more than 10%≤5.53
Working steel pipe
Seamless steel pipe(≤DN150)GB816320#qualified
Spiral steel pipe(≥DN200)GB/T9711 or SY/T5037Q235Bqualified

Product Features

Product nameThermal insulation direct buried pipe
Length5.8m-12m, or by customer's requirements
Nominal diameterDN25-1800
Laid wayBuried
ApplicationFluid Pipe, Natural gas, Gas, Oil, Hydraulic, chemical, drill, etc.
Production StandardThe national standard GB/T29047-2012, CJ/T114-2000, CJ/T155-2001


Pre Insulated Pipe

TECHNICAL INDICATORS

Nominal diameterOD ×Thickness(mm)Outer protection tube diameter ×Wall thickness(mm)Insulation thickness(mm)
2532x390x2.329
3243x3110x2.533
4048x3110x2.531
5057x3125x2.534
6576x3.5140x333
8089x4160x3.033
100108x4200x3.236
125133x4.5225x3.546
150159x4.5250x3.945.5
200219x6315x4.948
250273x6365x5.646
300325x7420x747.5
350377x7500x7.861.5
400426x7550x8.862
450478x7600x9.861
500529x7655x9.863
600630x8760x1165
700720x8850x1265
800820x9960x1370
900920x101054x1467
10001020x121155x1477
12001220x121380x1580
14001420x141680x16114

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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Contact Us
  • Tel : +86 22 6526 5758
  • Fax : +86 22 6526 5757
  • Mobile : +86 185 2217 4056
  • QQ : 444160733
  • E-mail : info@cnhaimen.com
  • Add : No. 2352-600 Tanghan road, Tanggu marine science and technology park, Tianjin Binhai high-tech zone
  • ZipCode : 300451