** 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-УХЛТУ 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-УХЛТУ 1469-006-00153229-2009
ENG: TShSR 1020(18K60)х325(12K48)-6,4-0,75-UKhL
Spec. TU 1469-006-00153229-2009
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 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.