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China Vacuum stainless steel liquid nitrogen, liquid oxygen, liquid argon, LNG pipelines DN8-DN200 - China Supplier
China Vacuum stainless steel liquid nitrogen, liquid oxygen, liquid argon, LNG pipelines DN8-DN200 - China Supplier China Vacuum stainless steel liquid nitrogen, liquid oxygen, liquid argon, LNG pipelines DN8-DN200 - China Supplier China Vacuum stainless steel liquid nitrogen, liquid oxygen, liquid argon, LNG pipelines DN8-DN200 - China Supplier China Vacuum stainless steel liquid nitrogen, liquid oxygen, liquid argon, LNG pipelines DN8-DN200 - China Supplier China Vacuum stainless steel liquid nitrogen, liquid oxygen, liquid argon, LNG pipelines DN8-DN200 - China Supplier

Vacuum stainless steel liquid nitrogen, liquid oxygen, liquid argon, LNG pipelines DN8-DN200

Price:500
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Contact Info
  • Address:南宮市育才路, Zip: 055750
  • Contact: 孫杰藝
  • Tel:13831990820
  • Email:13831990820@163.com

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Description
Additional Information

1

Vacuum Insulated Pipe Technology Design and Features

1. The inner pipe has a shrinkage rate of 0.3% at liquid nitrogen temperature; for rigid pipes, compensators are installed;

2. High-vacuum multilayer insulated cryogenic shut-off valves, check valves, emergency shut-off valves, and safety relief systems are installed on the pipeline;

3. Push-pull vacuum connection joints feature low heat leakage, no frosting, and anti-frosting properties;

4. Both inner and outer pipes are made of austenitic stainless steel 06Cr19Ni10 (or customized according to customer requirements);

5. Premium specialized multilayer insulation materials and gas adsorbents are used in the interlayer;

6. Supports with low thermal conductivity;

7. Application fields: industrial gases, medical, biological, electronics, aviation, automotive, beverage, and various other industries;

8. Transport media: liquid nitrogen (LIN), liquid argon (LAr), liquid oxygen (LOX), LNG.

Installation Features of Vacuum Insulated Pipes

1. Plug-in connection, commonly referred to as vacuum flange connection; segmented fabrication with vacuum flange connections between pipe sections;

2. Welded connection, commonly referred to as welded connection; segmented fabrication with welded joints for cryogenic insulated pipes, using on-site insulation;

3. Professional guidance for installation;

4. Shortens installation time, reduces installation workload, and lowers installation costs.

Vacuum Insulated Pipe Specifications and Main Technical Parameters

Specification (mm)

DN15

DN20

DN25

DN32

DN40

DN50

DN65

DN80

DN100

DN125

DN150

DN200

DN225

Inner Pipe (mm)

Φ20

Φ25

Φ32

Φ38

Φ45

Φ57

Φ76

Φ89

Φ108

Φ133

Φ159

Φ219

Φ245

Outer Pipe (mm)

Φ76

Φ76

Φ89

Φ108

Φ108

Φ114

Φ133

Φ159

Φ168

Φ219

Φ219

Φ273

Φ325

Heat Leakage (W/m)

0.49

0.53

0.63

0.76

0.90

1.01

1.30

1.59

1.93

2.40

2.87

3.82

4.29

Working Pressure

≤4MPa (designed according to user requirements)

Design Temperature

-196℃

Transport Media

LNG, LOX, LIN, LAr, LHe, etc.

Vacuum Interlayer Leak Rate

≤1×10-10Pa·m3/s

Vacuum Interlayer Leak and Outgassing Rate

≤1×10-8Pa·m3/s

Sealing Vacuum Degree

≤5×10-2Pa

Vacuum Degree at Liquid Nitrogen Temperature

≤5×10-3Pa

Ambient Temperature

-40℃ to 60℃

Interlayer Safety Device Opening Pressure

0.2MPa

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