Multi-laminated PTFE expansion joints
PTFE composite materials
Frenzelit texlam® materials are specifically developed for use in chemical and flue gas cleaning plants. The combination of unique tightness and flexibility of multilam® 230 with the high temperature resistance and strength of glass opens up a broad spectrum of applications.
- Chemical resistance to nearly all media
- Excellent tightness
- Outstanding flexibility, mechanical strength and resistance to bending
- Temperature resistance up to 316 °C
- Single-layer or multilayer processing
This innovation takes advantage of the excellent resistance of PTFE to nearly all media and high temperature resistance of glass fabric substrates. The temperature resistance for these material is more than 300 °C – with the same high tensile strength. Frenzelit texlam® 1250 and texlam® 1500 are coated on both sides with PTFE and additionally have a PTFE cross laminate on the media side. In contrast to conventional materials, wicking has been eliminated by coating the glass fabric on both sides. This coating is applied before the sintering of the cross laminate so that no glass fibers penetrate the laminate even during the sintering process. This makes it possible to use the material in wet applications or in conditions with extreme condensate formation.
PTFE cross laminate
multilam® 300 is an innovative PTFE laminate without fabric reinforcement that is used as a material for expansion joints. It was designed specifically for the chemical and food industry. This development has the following advantages:
- Chemical resistance to nearly all media
- High mechanical strength
- Wide application range thanks to single-layer or multilayer processing options
- Fold-free design for convoluted round expansion joints
- Application temperature up to 250° C
- Ideal for oscillations and vibrations
Frenzelit multilam® 100, 150 and 300 are PTFE materials that consist of multiple laminated single layers of film in different directions. This processing method results in tightness and tensile strength that is far superior to conventional PTFE films. As a result, these can be processed into single and multilayer expansion joints without a reinforcement layer.
- System solutions
Multi-laminated PTFE expansion joints for combined cycle gas turbine power plants (ccpp)
Multi-laminated PTFE expansion joints for strip galvanizing and continuous annealing lines
Movement test – expansion joint with pantograph control guide for denitrification plant
Certifications, approvals and tests:
- Application areas
Application examples
Expansion joint with pantograph control guide in exhaust gas cleaning Certifications, approvals and tests:
- Documents and downloads
Certifications, approvals and tests:
- Types
The expansion joint types, movements, temperature and pressure variations shown are only valid for the values provided in the example.
Multi-laminated PTFE expansion joints may have the same construction and movement absorption, but they can be designed with a different material structure for use in different application areas.
Without flange
Expansion joint type 01.001 Movement from distance of pipe (AR) Temperature variants °F/°C Pressure variants psi/bar Axial 25% and lateral 10% 300 / 401 °F ± 2.9 psi 150 / 205 °C ± 200 mbar PTFE 600 °F ± 2.9 psi PTFE 316 °C ± 200 mbar 
Expansion joint type 01.101 and 1.141 Movement from distance of pipe (AR/EH) Temperature variants °F/°C Pressure variants psi/bar Axial 25% and lateral 10% 300 / 401 °F ± 2.9 psi 150 / 205 °C ± 200 mbar PTFE 600 °F ± 2.9 psi PTFE 316 °C ± 200 mbar With flange
Expansion joint type 01.201 Movement from distance of pipe (EH) Temperature variants °F/°C Pressure variants psi/bar Axial 25% and lateral 10% 300 / 401 °F ± 2.9 psi 150 / 205 °C ± 200 mbar PTFE 600 °F ± 2.9 psi PTFE 316 °C ± 200 mbar 
Expansion joint type 01.211 Movement from distance of pipe (EH) Temperature variants °F/°C Pressure variants psi/bar Axial 35% and lateral 15% 300 / 401 °F ± 2.9 psi 150 / 205 °C ± 200 mbar PTFE 600 °F ± 2.9 psi PTFE 316 °C ± 200 mbar For large movements
Expansion joint type 01.422 Movement from distance of pipe (AR/EH) Temperature variants °F/°C Pressure variants psi/bar Axial 70% and lateral 10% 300 / 401 °F ± 2.9 psi 150 / 205 °C ± 200 mbar PTFE 600 °F ± 2.9 psi PTFE 316 °C ± 200 mbar Special versions
Expansion joint type 01.241 Movement from distance of pipe (EH) Temperature variants °F/°C Pressure variants psi/bar Axial 40% and lateral 20% 300 / 401 °F ± 2.9 psi 150 / 205 °C ± 200 mbar PTFE 600 °F ± 2.9 psi PTFE 316 °C ± 200 mbar Certifications, approvals and tests:
- Service
Service
Expansion joints must withstand loads like the system component or pipe itself absorb and additional stress, movements, oscillations or vibrations in axial and/or lateral direction – while ensuring operational safety.
You may already have a very good idea what your expansion joint should look like. Or an application that you want to further develop. A partnership with Frenzelit allows you to realize your ideas according to your system-specific requirements.
We offer you the following: Frenzelit engineers work together with your design department to develop a technically and economically feasible solution that meets your demands. Our experts are at your disposal in all project phases to develop fabric, non-metallic and elastomer expansion joints, PTFE and multi-laminated PTFE expansion joints as well as rubber and metal expansion joints for your system. We are with you every step of the way – from planning and production to installation and maintenance – for the life of your system.
Personal, on-site consulting ensures that your employees stay focused on what they do best, saves valuable resources and gets you the results you need faster. We develop, design or optimize expansion joints in collaboration with your team based on your specifications – so you can rest assured that they will continue to meet tomorrow’s demands. That’s why our motto is “creating hightech solutions”.
Certifications, approvals and tests:
