Forged and welded T-pieces

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Forged and welded T-pieces
 

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

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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

Forged& welded T-pieces allow connecting side lines to main ones in order to separate the flow of carried fluid. T-pieces may be flush type, when all three ends have the same diameter and adapter type, when branch diameter is less than the main line's.

Reference example of forged& welded T-piece for connection to pipe OD 720 mm and 530 mm branch, WT 16 and 14 mm and strength classes K60 and K54 accordingly, operating pressure 7.5 MPa at service factor m=0.6; climate design UKhL:

ТШС 720(16К60)х530(14К54)-7,5–0,6-УХЛ 
ТУ 1469-006-00153229-2009

ENG: TShS 720(16K60)х530(14K54)-7,5-0,6-UKhL
Spec. TU 1469-006-00153229-2009

T-pieces are available with screens. According to the requirements of SNiP2.05.06-85, screens shall be installed to T-piece branches in case branch to main diameter ratio exceeds 0.3.

Reference example of forged& welded screened adaptor T-piece for connection to pipe OD 1020 mm and 325 mm branch, WT 18 and 12 mm and strength classes K60 and K48 accordingly, operating pressure 6.4 MPa at service factor m=0.75; climate design UKhL:

ТШСР 1020(18К60)х325(12К48)-6,4–0,75-УХЛ
ТУ 1469-006-00153229-2009

ENG: TShSR 1020(18K60)х325(12K48)-6,4-0,75-UKhL
Spec. TU 1469-006-00153229-2009
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Norms and Regulations Nominal diameter of main line, DN Nominal diameter of branch, dn Operating pressure, Pop, MPa
Spec. TU 1469-006-00153229-2001 500… 1200 150… 1200 up to 11.8
Spec. TU 1469-006-00153229-2009 500… 1000** 150… 1000** up to 16.0**
500… 1400* 150… 1200* up to 11.8*
Spec. TU 1469-035-00153229-2015 500 150… 400 up to 32.0
500 500 up to 16.0
600…1000 150…800 up to 16.0
1000…1400 150…1200 up to 11.8
Spec. TU 1469-040-00153229-2017 500… 1200 150… 1200 up to 32.0
*Datasheets: Forged and Welded T-pieces for Gas Mains.
**Datasheets: Forged and Welded T-pieces for Field Gas Lines.

The T-pieces are available in performance different from specified in the table (pressure, service factor or climate design) or for connection with piping of different thickness. T-pieces are available with adaptor rings (ring lenght at least 250 mm) acc. to SNIP III.42.80 upon request and may come with external insulation coating according to Specifications TU 1469-011-00153229-2012 and TU 1469-006-00153229-2001.