Non-metallic inlet gas turbine expansion joints are designed to provide stress relief by absorbing movements caused by temperature changes, vibration and ducting misalignments.

Non-metallic inlet gas turbine expansion joints incorporate a proprietary gas seal membranes with stand alone temperatures up to 1100ºC (2000ºF) and fly ash containment seals to keep ash out of the expansion joint cavity.


Cold to Cold Frame Design

---

• Free floating hot liner system allows positive independent thermal expansion

• Inlet deflector liner plate prevents vortex effect & protects the cavity during turbine washing

• Internal pins lock & secure insulation during operation

• Typical liner material is made from SA240 type 409/410SS


Thermal & Acoustical Barriers

---

• Thermal insulation barrier reduces the 625ºC inner hot face temperature to 60ºC on the GSM outer cold face.

• GSM temperature without added insulation up to 1100ºC

• The acoustical noise reduction barrier reduces noise level from 134dBA @ 8000 Hz to 66.7 dBA at 1m distance.

• GSM design is impervious to internal &external corrosion.

• Round & Rectangular Cold-to-Cold, Hot-to-Hot & Cold-to-Hot flange designs.

• Hot Free Floating Liners provides for positive independent thermal expansion.

• Provides for rapid temperature acceleration to 650ºC with high flow ± pulsation.

• Incorporates acoustical thermal barrier.