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Directly Buried Steam Insulating Pipe

    Our products can be used to transport Steam、Heat Transfer Oil and other medium in the medium temperature not more than 350℃ and the pressure below 1.6Mpa,and the implement standard is CJ/T200-2004( Prefabricated Directly Buried Steam Insulating Pipe Technological Regulation for Urban Heating) ,CJ28-2004( Pipe Network Construction and Inspection Standards)
    We can also customize for special requirement of yours .

technical parameter

    Working pipe :seamless steel pipe with material of 20# and standard of GB8163-1999 for DN350 and below
    SSAW steel pipe with material of Q235A and standard of GB9711.1-97 for DN400 and above

    Outer thimble:SSAW steel pipe with material of Q235B and standard of GB9711.1-97 or SY/T5037-2000

    Type of Insulated layer:outside slidng coated with Asbestos-free porous calcium silicate glass wool or high temperatures centrifugal; silding coated with Asbestos-free porous calcium silicate; outer layer coated with high-density polyurethane foam

    Type of antisepsis layer:polyurea or 3 PE or spraying anti-corrosion or two epoxy zinc-rich primer 3 + 5 oil cloth



Accessories:
Bend,Fixed Buttress,Hydrophobic Node,Composite Pipe,Compensator,Reducing Pipe

Sr No

Type

Core tube Specification

Thickness of Insulated layer(mm)

Outer thimble

DN

O.D
mm

W.T
mm

O.Dmm

W.Tmm

1

GG/Z-DN50

50

57

3.5

60(30+16.5)

219(159)

6(4.5)

2

GG/Z-DN65

65

76

4

60(40+25.5)

219(219)

6(6)

3

GG/Z-DN80

80

89

4

70(40+19)

273(219)

6(6)

4

GG/Z-DN100

100

108

4

80(two-layer)(50+26.5)

325(273)

7(6)

5

GG/Z-DN125

125

133

4.5

90(two-layer)(50+29)

377(325)

7(7)

6

GG/Z-DN150

150

159

4.5

90(two-layer)(50+26)

377(325)

7(7)

7

GG/Z-DN200

200

219

6

100(two-layer)(50+22)

478(377)

8(7)

8

GG/Z-DN250

250

273

7

110(two-layer)(60+34.5)

529(478)

8(8)

9

GG/Z-DN300

300

325

8

120(two-layer)(60+34)

630(529)

8(8)

10

GG/Z-DN350

350

377

9

130(two-layer)(60+58.5)

720(630)

10(8)

11

GG/Z-DN400

400

426

10

140(two-layer)(60+34)

820(630)

10(8)

12

GG/Z-DN450

450

478

10

150(two-layer)(60+53)

820(720)

10(8)

13

GG/Z-DN500

500

529

10

160(two-layer)(70+65.5)

920(820)

10(10)

14

GG/Z-DN600

600

630

10

170(two-layer)(70+65)

1020(920)

10(10)





 
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