2 inch white phenolic foam jacket insulation steel pipe for heater water pipe

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
10 m.t.
Supply Capability:
100000 m.t./month

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Product Description:

 

Diameter sheet

Specifications

(mm)

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

 Structure of polyurethane insulation pipe

2 inch white phenolic foam jacket insulation steel pipe for heater water pipe

 

 Advanced production technique 

 

 

 

 

1. Shot blasting process

Shot blasting treatment is necessary before foaming.

First, this process polished outer surface of the qualified pipes,remove the oxide,dust and oil stain of the pipe surface

Then increase adhesion of the pipe.

Last,It improved the adhensive strength between the polyurethane insulation layer and the pipe.

 

 

2.Electric corona treatment process

Electrode corona process carry out the principle of high pressure electrode discharge. To make electric corona treatment for the inner surface of PE pipes.

 

 

 

 

3.Polyurethane foam

We use PU600 high-pressure foam machine.and its capacity of injection materials reaches 600L/min, pressure of injection material  reaches 30MPa.Our polyurethane raw material is from Bayer Company in German.Which is fluorine-free products with best quality. Also it  meet all the data of our chinese Ministry of Construction and European standards. , it can continously working under the temperature  148℃ and more than 30 years’s life..

 

4.Sweating soldering process

Firstly, this process makes the V type welding junction melted.at the same time, Under the pressure of welding machine, it makes the extruded melted PE to be welded tightly on the junction.

 

 

5.Hot plate welding process

According to the principle of PE sweating soldering, to preheat the junction of the pipe with different angles on the hot plate. after it reaches the resonable temperature.quickly exert the axial pressure on the pipes to enable the melted pipe orifice be welded perfect.

 

 

6.Electric sweating soldering interface process

Through the method of electrical heating, the joint coupling can be used with PE outer protecting pipes, which has high welding strngth, and is applicable for the construction that adopts various laying direct-buried prefabricated insulation pipe joints.

 

 

 

Machanical Property of Polyurethane foam layer 

Items

Unit

Technical data

Testing method

Density

Kg/m³

≥60

CJ/T114

Compressive strength

MPa

≥0.3

GB/T12811

Water absorption

%

≤10

GB/T8813

Thermal conductivity

W/m.k

≤0.033

CJ/T114

Hole blind rate

%

≥88

GB/T10297

Heat resistance

140℃ 30 year

GB/T10799

Average pore diameter

mm

≤0.5

CJ/T114

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