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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
ТУ 1469-006-00153229-2009
ENG: PSK 720(14K56)х530(10K54)-7,5-0,6-UKhL
Spec. TU 1469-006-00153229-2009
** 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 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:
ПСК 720(14К56)х530(10К54)-7,5-0,6-УХЛТУ 1469-006-00153229-2009
ENG: PSK 720(14K56)х530(10K54)-7,5-0,6-UKhL
Spec. TU 1469-006-00153229-2009
| 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 9.8 |
| Spec. TU 1469-035-00153229-2015 | 500 | 350… 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 | 500… 1200 | 300… 1050 | up to 24.0 |
| OST 34.10.753-97 | 500… 1600 | 250… 1400 | up to 2.2 |
The adapter 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. The adapter pieces 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.
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