GtTec Expansion Joint Technical Specifications and Design Types

GtTec expansion joints are offered with three different design categories to meet the unique requirements of gas turbine exhaust systems. Below, the technical features and design types of the product are explained in detail:

• Hot-to-Hot Gas Turbine Expansion Joint: Designed for regions where both connection flanges operate at exhaust gas temperature. The special frame design offers a much higher number of cycles compared to conventional expansion joints, providing long-lasting performance.
• Hot-to-Cold Gas Turbine Expansion Joint: Used in regions where one flange is at exhaust gas temperature and the other has internal insulation. On the non-insulated flange side, the expansion joint pad is fixed with insulation washers and anchor pins. On the internally insulated flange side, slotted guide plates allow free movement with temperature increase.
• Cold-to-Cold Gas Turbine Expansion Joint: Suitable for regions where both flanges have internal insulation. Slotted guide plates allow free movement during temperature increase, and the expansion joint frame is not directly exposed to hot gas flow.
• Thermal Shock and Vibration Resistance: Provides superior protection against rapid temperature changes and mechanical vibrations.
• Special Frame Design: Optimized for high cycle count and durability.
• Operating Temperature Range: Works in a wide temperature range suitable for gas turbine applications.
• Operating Pressure Range: Provides stable performance against mechanical and thermal stresses.

GtTec expansion joints provide reliability and performance at critical points of gas turbine systems. With hot-to-hot, hot-to-cold, and cold-to-cold models, it responds to all types of application needs. Its high-quality materials and innovative design make these expansion joints an indispensable component for power plants and industrial facilities.