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24.01.2012
Cubicle switchboard “KRU-IE”, low voltage distribution switchgear “NKU SE IE” and one-side operated cabinets “KSO-IE” produced by INVENT-Electro have passed all qualification and certification tests and were certified for use at the facilities of the Federal Grid Company.

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28.10.2011
The visit took place within the official trip of the management of the Russian Energy Agency (REA) to Kazan. The government of the Republic of Tatarstan and Russian Energy Agency signed a cooperation agreement which contemplates cooperation in the sphere of improvement of energy efficiency and innovative activities in...
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4.10.2011
According to the results of annual research by rating agency Expert RA, INVENT group is in the list of the largest Russian companies

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Heat-Insulated Pipe

 

 

Outside diameter of pipes may be from 32 to 1420 mm. Steel pipe length for diameters of maximum 219 mm is 8-12 m, for diameter of 273 mm and above - from 10 to 12 m.

In pipes with diameter up to 426 mm inclusively two conductors of on-line test indicator are installed. Conductors are placed in parallel with pipe axis in plane of one section.  At the upper position of steel pipe longitudinal weld conductors are in positions corresponding to 3 and 9 hours.

In pipes with diameter of 530 mm and above three conductors-indicators are installed in positions corresponding to 3, 9 and 12 hours. Provided that steel pipe longitudinal weld is in (12 ± 2h) position.

Outside diameter and minimal thickness of steel pipe wall*, mm

PE coating diameter, mm

Galvanized coating diameter, mm

Type 1

Type 2

32х3.0

125/2.5

-

125/0.55

38х3.0

125/2.5

-

125/0.55

45х3.0

125/2.5

-

125/0.55

57х3.0

125/2.5

140/3.0

125/0.55

76х3.0

140/3.0

160/3.0

140/0.55

89х4.0

160/3.0

180/3.0

160/0.5

108х4.0

180/3.0

-

180/0.6

133х4.0

225/3.5

250/3.9

225/0.6

159х4.5

250/3.9

-

250/0.7

219х6.0

315/4.9

-

315/0.7

273х7.0

400/5.6

450/5.6

400/0.8

325х7.0

450/5.6

-

450/0.8

426х7.0

560/7.0

-

560/1

530х7.0

710/8.9

-

711/1

630х8.0

800/10.0

-

800/1

720х8.0

900/11.2

-

914/1

820х9.0

1000/12.4

-

1000/1

1020х11.0

1200/14.9

-

1250/1

1220х11.0

-

-

1400/1

* Thickness of steel pipe wall is to be specified in the project

 

 Example of reference designation of steel pipe with outside diameter of 57 mm, wall thickness of 3mm with insulation of type 1 in polyethylene coating: 

Pipe St 57 х3-1-FPU-PE GOST30732—2006,

the same for galvanized coating: 

Pipe St 57 х3-FPU-GalvGOST30732—2006.


Contacts:

32 Leskhozovskaya St, Stolbishche village,
Laishevo district, Republic of Tatarstan, 422624
Sales department:
Tel./ Fax: (843) 227-43-62
E-mail: tti-com@rambler.ru

Обособленное подразделение г. Москва

г.Москва, ул.Минская, 1Г, корп.2
комплекс "Золотые ключи-2"

Тел: (495) 788 9732, (495) 788 9734, (495) 788 9736

E-mail: ttimostrade@inventunion.ru