Series of hydraulic operated actuators, which stop flow in the pipeline, used to temporary isolate a section of pipeline for repair, shutdown or maintenance without need to shut/empty the line.
The key features:
- Operating pressure 1480 psi at 200⁰ C
- Direct measurement for depth control
- Stopping pipelines of different diameters
| LSA4-12 | LSA14-20 | LSA22-34 | LSA36-48 | |
| Minimum pipeline diameter | 102 mm | 355 mm | 558 mm | 915 mm |
| Maximum pipeline diameter | 305 mm | 500 mm | 864 mm | 1220 mm |
| Maximum operational pressure | 102 bar | 102 bar | 102 bar | 102 bar |
| Spindle shift | 1829 mm | 2590 mm | 3556 mm | 4190 mm |
| Maximum operational temperature | 200⁰ C | 200⁰ C | 200⁰ C | 200⁰ C |
| Machine weight | 135 kg | 450 kg | 740 kg | 1550 kg |