Turbine Closure System

INTEGRA’s Turbine Closure System service replaces traditional time consuming bolting methods. To close the horizontal joint we apply a simultaneous load to existing shell fasteners using a series of specialized hydraulic load cells. The system requires no modifications to the turbine’s present bolting arrangement.

The load cells are simply and quickly installed onto the unit’s service studs and pressurized. This results in full flange-to-flange contact in a matter of minutes. The inner and outer shells can even be tensioned at the same time. On a typical 500-600 MW unit, the initial installation, pressurization and subsequent removal of an entire Turbine Closure System can often be completed in 2-4 hours.

As a result, Tops-On alignments which used to require two to three days to perform can now be done in a few shifts. The System is also often used to rapidly close horizontal joints during final reassembly of turbines, thus saving even more time.

Turbine Closure System Gallery

Frequently Asked Questions

The drive piston automatically retracts after each operation to ensure correct piston stroke every time.

Tools are lighter in weight, smaller in size, yet produces much higher applied loads to deliver greater clamping force.

The tool socket is permanently built into the head. Simplifies and speeds up installations/removal. Eliminates delays due to misplaced or lost sockets

Duel inlet and outlet parts make it much easier to quickly and safely install/remove hose harness.

In the unlikely event of a seal failure, oil pressure is dispersed inside the tool housing thus eliminating the danger of a high pressure blow out.

High visibility maximum stroke indicator. Captured socket for faster operation. Fits all standard flanges. Piston over-stroke prevention.

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