Forged and forged & welded concentric transitions

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Forged and forged & welded concentric transitions
 

Spec. TU 1469-006-00153229-2001*
Spec. TU 1469-006-00153229-2009**
Spec. TU 1469-035-00153229-2015**
Spec. TU 1469-040-00153229-2017
GOST 17378-2001

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  Forged and forged & welded concentric transitions
  Forged and forged & welded concentric transitions
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* Тechnical specification included in the Registry of Main Product Types Purchased by Transneft
** Тechnical specification included in the Registry of Gazprom Piping Products

Adapter pieces are used for connection of pipes varying on diameter and are designed to smoothen pipeline diameter change.

Reference example of forged & welded concentric transition for connection to pipe OD 720 mm and 530 mm, WT 14 and 10 mm, strength classes K56 and K54 accordingly, operating pressure 7.5 MPa at service factor m=0.6; climate design UKhL:

ПШСК 720(14К56)х530(10К54)-7,5-0,6-УХЛ
ТУ 1469-006-00153229-2009

ENG: PShSK 720(14K56)х530(10K54)-7,5-0,6-UKhL
Spec. TU 1469-006-00153229-2009

Reference example of adapter piece acc. to GOST 17378-2001 for connection to pipe OD 108 and 76 mm, WT 6 and 4 mm of steel grade 10G2 (Cyrillic Г2):

К-2-108х6-76х4-10Г2
ГОСТ 17378-2001

ENG: K-2-108х6-76х4-10G2
GOST 17378-2001

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Norms and Regulations Larger nominal diameter, DN Smaller nominal diameter, dn Operating pressure, Pop, MPa
Spec. TU 1469-006-00153229-2001 500… 1200 300… 1000 up to 11.8
Spec. TU 1469-006-00153229-2009 500… 1400* 300… 1200* up to 11.8*
70… 1000** 40… 800** up to 16.0**
Spec. TU 1469-035-00153229-2015 65…500 50… 400 up to 32.0
600…1000 400… 800 up to 16.0
1200…1400 600… 1200 up to 11.8
Spec. TU 1469-040-00153229-2017 65… 1200 40… 1050 up to 24.0
GOST 17378-2001 50… 500 20… 400 up to 16.0

*Datasheets: Forged and forged& welded concentric transitions for Gas Mains.
** ТDatasheets: Forged and forged& welded concentric transitions for Field Gas Lines.

The adapter piece are available in performance different from specified in the table (pressure, service factor or climate design) or for connection with piping of different thickness. The adapter piece are available with adaptor rings (strength up to K60, length at least 250 mm) acc. to SNiP III-42-80 upon request and may come with eternal insulation coating according to Specifications  TU 1469-011-00153229-2012 and TU 1469-006-00153229-2001.