Versatility
- Compatible with any kind of pipeline
- Connecting pipes made of dissimilar materials
- Fast and easy repair of damaged pipes without service interruption
Reliability
- Flexible pipe connection
- Compensates for axial and angular misalignment
- Pressure resistant and leak-proof even with incorrect pipe assembly
Ease of use
- Reusable use
Maintenance free
No time-consuming alignment and fitting work
Durability
- Progressive sealing effect
Progressive anchor effect
Corrosion resistance and heat resistance
Good resistance to chemicals
Long service life
Safety
- No cost of precautions
Couplings absorb vibration
Eliminate the need for local exhaust ventilation, gas-free purging and
hot work permit
Economy
Save time, space, weight and cost.
- Time to install couplings
94% Hours Reduction This figure does not include additional savings from reduction in CPI (X-ray), flushing, movement along the ship's side during installation of couplings. - Space
Space Reduction by 50% This figure does not reflect additional savings due to the elimination of flange accessibility issues during coupling installation. - Weight
Weight reduction of 78% This figure does not include additional savings due to the use of lighter pipe supports when installing couplings
Compactness
In shipbuilding, a significant reduction in ship weight.
Light coupling weight
Compact installation
Small size
Comparison table for NSK couplings and flanges
| Dу / D external pipes, mm | C/MFl couplings size, mm | Flange size D, mm | Coupling weight S/MFl, kg | Flanged weight connections (with fasteners), kg | |
| D1 | D2 |  | |||
 | |||||
| 50/57 | 109/112 | 79/76 | 135 | 0,7/0,5 | 3,1 |
| 65/76 | 131/150 | 98/101 | 155 | 1,0/1,2 | 3,6 |
| 80/89 | 142/161 | 111/114 | 170 | 1,0/1,3 | 4 |
| 100/108 | 158/175 | 130/132 | 190 | 1,1/1,5 | 4,5 |
| 125/133 | 190/205 | 158/160 | 215 | 1,9/2,1 | 5 |
| 150/159 | 214/229 | 184/186 | 240 | 2,1/2,3 | 5,6 |
| 200/219 | 277/282 | 242/247 | 295 | 3,7/4,7 | 8 |
| 250/273 | 328/333 | 296/301 | 365 | 4,2/5,4 | 11,8 |
| 300/325 | 378/383 | 348/353 | 430 | 4,8/6,1 | 20,5 |
| 350/377 | 428/434 | 400/405 | 480 | 5,5/6,9 | 24,2 |
| 400/426 | 475/481 | 449/454 | 530 | 5,9/7,5 | 27,5 |
| 450/480 | 531/535 | 503/508 | 580 | 6,3/8,0 | 28,8 |
| 500/530 | 569/584 | 533/558 | 635 | 6,8/8,8 | 35,1 |
