Couplings are designed for repairing metal pipes and welded joints on existing oil trunk pipelines and oil product pipelines with a diameter of 159…1220 mm, with a nominal wall thickness of 5…18 mm, working at a pressure of up to 6.3 MPa (63 kgf / cm2), as well as on parts of welded pipes to eliminate technological holes on oil pipelines and oil product pipelines with a working pressure of up to 6.3 MPa (63 kgf / cm2).
COUPLINGS ARE MADE OF 12 TYPES OF CONSTRUCTION:
Type P1 – Coupling restores the bearing capacity of the defective section of the oil pipeline and the oil product pipeline to the defect-free level according to KMT and is produced in accordance with the requirements of RD-23.040.01-KTN-108-10, RD-23.040.00-KTN-386-09.
1 — Central ring 1 pc.;
2 — Technological ring 1 pc.;
3 — Lining plate 2 pcs.;
4 — Lining plate 4 pcs.
5 — Oil pipeline
Type PZ — galtelnaya coupling for repair of welded ring seams at a pressure of up to 6.3 MPa
1 — Central ring with a galtel 1 pc.;
2 — Lining plate 2 pcs.
3 — Oil pipeline
Type P4 — galtel coupling with technological rings with a short cavity for repairing welded ring seams and filling with anticorrosive liquid at a pressure of up to 6.3 MPa
1 — Central ring with a galtel 1 pc.;
2 — Technological ring 2 pcs.;
3 — Подкладная пластина 6 шт.;
4 — Lining plate 6 pcs.;
5 – Oil pipeline
Type P5 — welded galtel coupling with technological rings for repair of welded ring seams at a pressure of up to 6.3 MPa
1 — Central ring 1 pc.;
2 — Side cylindrical ring 2 pcs.;
3 — Technological ring 2 pcs.;
4 — Lining plate 6 pcs.;
5 — Oil pipeline
Type P5U — extended welded galtel coupling with technological rings for repair of welded ring seams and defects in the pipe wall at a pressure of up to 6.3MPa
Type P6 — extended galtel coupling for the repair of corrugations and filling with anticorrosive liquid at a pressure of up to 6.3 MPa
1 — Central ring with a galtel 1 pc.;
2 — Technological ring 2 pcs.;
3 — Lining plate 4 pcs.;
4 — Lining plate 2 pcs.;
5 — Threaded plug 2 pcs.;
6 — Oil pipeline.
Type B1 — welded non-crimping coupling with technological rings and filling with anticorrosive liquid at a pressure of up to 6.3 MPa
1 — Central ring 1 pc.;
2 — Side cylindrical ring 2 pcs.;
3 — Technological ring 2 pcs.;
4 — Lining plate 4 pcs.;
5 — Lining plate 2 pcs.;
6 — Threaded plug 2 pcs.;
7 — Oil pipeline.
Type B2 — welded coupling with conical transitions and filling with anticorrosive liquid at a pressure of up to 6.3 MPa
1 — Central ring 1 pc.;
2 — Conical ring 2 pcs.;
3 — Side cylindrical ring 2 pcs.;
4 — Technological ring 2 pcs.;
5 — Lining plate 6 pcs.;
6 — Threaded plug 2 pcs.;
7 – Oil pipeline.
Type P1B — welded for the repair of plungers
Type P1P7 — welded composite for repair of pipes P7
Type P7 is a welded pipe with an elliptical plug for permanent repair of technological holes and tie—ins.