Thermal Insulation Direct Buried Pipe - China

Thermal insulation direct buried pipe can also be called pre insulated pipe, they are a kind of heat pipeline.

We can supply high quality Heating Pipeline, welcome to choose us!

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

Company Contact:

• Posted By: Tianjin Haimen Building Materials Co.,ltd

• Phone: 022-65265758

• Address: No. 2352-600 Tanghan road, Tanggu marine science and technology park,, Tianjin , Binhai high-tech zone, China

• Email:

• Website: https://www.insulatchina.com

• Business Description: Tianjin Haimen Building, founded in 1987, formerly a military enterprise, restructuring and renaming as Tianjin Haimen Building Materials Co., Ltd. in 2010 - Haimen Located in #2352-600 Tanghan Road, Binhai New Area, Tianjin China, close to the Tianjin seaport.
  
  The registered trademark is "Haimen" brand, focus on R&D, production, construction and service of thermal insulation materials.
  
  With the principle of "focus, professionalism and specialization", obtained the ISO9001 QMSA certificate in 2003, and then passed the ISO14001 Environmental Management System and OHSAS18001 Occupational Health and Safety Management System Certification, and have the Grade II Qualification Certificate of The National Antiseptic Insulation Project Construction.
  
  With the philosophy of "not selling future with short-term interests, with quality goods to participate the market competition", provide quality products and excellent services, sincerely expect friends from all circles to consult and negotiate businesses, seeking common development.