PTFE expansion bellows, otherwise known as PTE expansion joints, offer excellent media compatibility and corrosion resistance. Offered in two ranges - standard 'R' and heavy duty 'RHD' - with diameters from 25mm to 600mm. All bellows have Van Stone flanges - any drilling available - and limit rods:
What is a Convoluted PTFE Expansion Bellows?
For excellent corrosion resistance and media compatibility...
Solid, multi laminated PTFE bellows with coated carbon steel flanges.
Highly corrosive and contamination sensitive media.
Varies with number of convolutions and strongly with temperature. Electrically conductive.
Minimum porosity and homogeneous wall thickness.
How to select a PTFE bellow
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FlexEJ's PTFE Expansion Bellows
FlexEJ has the following two ranges of PTFE joints available:
STANDARD DUTY, 2-3, 4-6 and 7-10 CONVOLUTIONS
Inert, highly compatible
Solid PTFE multilayer convolutions assure minimum permeability and good mechanical performance. Rated from 10 Barg at 50°C, the pressure rating reduces with both increasing temperature and number of convolutions, please see the range charts. Supplied with flanges which can be specified to any drilling pattern in coated carbon steel or stainless steel. Flanges are Van Stone which guarantees that the media is only ever in contact with PTFE. Limit rods are provided to prevent over extension.
HEAVY DUTY, 2-3, 4-6 and 7-10 CONVOLUTIONS
Inert, highly compatible
Solid PTFE multilayer convolutions assure minimum permeability and good mechanical performance. Rated from 16 Barg at 50°C, the pressure rating reduces with both increasing temperature and number of convolutions, please see the range charts. Supplied with flanges which can be specified to any drilling pattern in coated carbon steel or stainless steel. Flanges are Van Stone which guarantees that the media is only ever in contact with PTFE. Limit rods are provided to prevent over extension.
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FLEXEJ Ltd was formed in 2002 by two professional engineers who brought together an already highly respected design capability with business and commercial skills gained in large multinational companies.
- Our focus has always been on application and design – helping our customers find the best value solution.
- We have a strong engineering and manufacturing team with experience in petrochemicals, refining, nuclear, desalination though to HVAC.
- The team is also very familiar with meeting complex requirements for documentation, in process NDT and test on projects. We have supplied many large end-users such as EDF, Exxon, Shell, Reliance & QatarGas working with major contractors such as JGC, Foster Wheeler & Technip.