INTERNAL LINE-UP CLAMPS

The internal hydraulic line-up clamps CV are for separate pipes end surface alignment and assembly unturning and turning joints sections during pipeline construction.
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Technical characteristics
Pipe's dia., mm
Wall thickness, mm
6-18
406 (457*)
CV42
5-10
325 (381*)
1 420
14-23
CV32
6-14
530 (630*)
CV54
7-22
720 (820*)
CV85
9-18
1020 (1067*)
CV107
10-19
1 220
CV127
CV147
Quantity of clamps in a row
Quantity of centering rows
ОGeneral effort to one end surface, N
Overall dimensions, mm:
- length (without boom)
- diameter
Mass, kg (without booms and spare parts, tools and accessories (SPTA))
Pipe's dia., mm
Wall thickness, mm
Quantity of clamps in a row
Quantity of centering rows
ОGeneral effort to one end surface, N
Overall dimensions, mm:
- length (without boom)
- diameter
Mass, kg (without booms and spare parts, tools and accessories (SPTA))
Pipe's dia., mm
Wall thickness, mm
Quantity of clamps in a row
Quantity of centering rows
ОGeneral effort to one end surface, N
Overall dimensions, mm:
- length (without boom)
- diameter
Mass, kg (without booms and spare parts, tools and accessories (SPTA))
Pipe's dia., mm
Wall thickness, mm
Quantity of clamps in a row
Quantity of centering rows
ОGeneral effort to one end surface, N
Overall dimensions, mm:
- length (without boom)
- diameter
Mass, kg (without booms and spare parts, tools and accessories (SPTA))
2
8
2
6
16
2
2
8
2
12
2
12
2
16
2 150
450
2 000
400
800
3 250
2 280
500
2 540
800
3 170
800
3 250
800
325
420
260
380
1 420
1 935
577
630
950
760
1 500
1 020
1 715
1 220
(*) - Additional diameters. The line-up clamps for these diameters are made only optional by Customer at extra cost
The internal line-up clamps make circle shape for assemble pipes end surfaces, secure its concentric assemblage and evenly distribute difference perimeters. Its have an advantage compared with external line-up clamps. An advantage: joint is full opening and it allows making welding first layer continuously and using automatic welding machines.

The internal line-up clamps have a hydroelectric drive and two independent centering clamps rows. Direct-current welding machine effects feeding line-up clamps

A set of supply can consist of boom (whole length to 36 m) and ventilator, which use for blowing gases from pipe. These gases create during welding works. line-up clamps building coordinates with Customer.
Hydro distributors changed united, which works in different duties for more safety. Hydraulic unit frame was strengthened.

The internal line-up clamps for pipes with wall thickness more than a table are made optional by Customer.
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