Expansion joints in use: Cost-effective complete solutions for sustainable processes
Our expansion joints are in demand in all industries. Applications range from plant engineering and power plant construction to process technology, from the paper and pulp industry to the chemical industry. The interaction between material expertise, intensive consulting and production expertise that Frenzelit offers benefits our customers. We produce sustainable solutions that function smoothly in your process – for many years. That’s why Frenzelit has such a good reputation among countless industrial companies around the world.
The following practical examples demonstrate our wide range of services.
Mobility Energy Wood, paper and pulp industry Chemical and petrochemical industry Glass, steel and aluminum industry Food and drinking water industry Machine manufacturing and plant engineering
Gas turbine exhaust systems
- Type 1.131/03
- Temperature: 570 °C
- Pressure: 40 mbar
- Movement: 50 mm in all directions
- Application: GT modules for civil shipping and marine
Diesel exhaust systems
- Type 1.011/IS
- Temperature: 650 °C
- Pressure: 60 mbar
- Movement: axial: 25 mm, lateral: 15 mm
- Application: Marine
Sealing in gas duct and ship design
- Type 1.422
- Temperature: 500 °C
- Pressure: 5 mbar
- Movement: axial: 40 mm, lateral: 10 mm
- Application: Yachts
Gas tank sealing
- Type 1.201
- Temperature: 150 °C
- Pressure: 100 mbar
- Movement: axial 40 mm, lateral: 10 mm
- Application: LPG tankers
Metal expansion joints for exhaust systems
- Type: FR-UN DN900
- Temperature: 600 °C
- Pressure: 500 mbar
- Movement: axial: 20 mm, lateral: 35 mm
- Application: LPG tankers
Expansion joint with pantograph control guide in exhaust gas cleaning
Expansion joints for large movements, wind loads
Expansion joints with pantograph control guide at boiler outlet


Expansion joints for large movements due to wind loads
Gas turbine exhaust system for high temperatures


The most highly stressed expansion joint in the exhaust system directly at the turbine outlet with an exhaust gas temperature of max. 700 °C and an axial compression of minus 110 mm with simultaneous lateral shifting of 50 mm. The expansion joint is located directly at the junction of the outer-insulated turbine flange to the inner-insulated exhaust gas duct.
Multi-tube boiler seal at waste heat boiler of gas turbine
- Specially designed fabric/non-metallic joints
Double fabric expansion joint as boiler seal for waste heat boiler of gas turbine

- Specially designed fabric/non-metallic joints
Fabric expansion joint as boiler seal for waste heat boiler of gas turbine at base


Bolted connection for high temperatures at base
Fabric expansion joints as boiler seal for waste heat boiler of gas turbine


Frenzelit fabric expansion joints for high axial and different lateral movements
Header pipe breakthrough at incinerator boiler with chute entry


- Specially designed fabric/non-metallic joints
Corner segment at incinerator boiler


- Specially designed fabric/non-metallic joints
Double bellow with intermediate pipe, as well as a special construction of the holding rod to catch the intermediate pipe for paper machines


Flexible rubber expansion joints

DN 125 / 10 bar

DN 80 - 4000 / max. 2,5 bar
Abrasion-resistant rubber expansion joint hose with support for wastewater containing solids

Rubber expansion joint with PTFE lining for outlet of a washer in a copper mine


Flexible rubber expansion joints

DN 125 / 10 bar

DN 80 - 4000 / max. 2,5 bar
Expansion joints - Challenged on many fronts
Frenzelit expansion joints prove their excellent properties in numerous process steps in strip galvanizing lines and during the continuous annealing of metal sheets.