When expanded polytetrafluoroethylene gaskets meet heat exchangers
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This post was last edited by Xin Ruifangxiao on 2022-5-11 at 17:24. The expanded polytetrafluoroethylene sealing tape, made of 100% pure polytetrafluoroethylene, is soft, compressible, and easy to shape; it is particularly suitable for applications where the sealing surface is damaged or where structural strength is low. The high-performance tetrafluoroelastomer sealing strips produced through special processes have a highly fibrous internal structure, with a more uniform distribution of the microstructure. This gives them improved filling properties and creep resistance, as well as – and this is particularly important – consistency in their sealing performance. The PTFE elastic strip with built-in adhesive is easy to install; it can be adapted to sealing surfaces of various sizes and materials, and it can also handle sealing on rough surfaces with ease. Eexpanded polytetrafluoroethylene gaskets can replace metal wound gaskets in heat exchangers, offering the following advantages: 1. They provide continuous sealing, enabling effective sealing of uneven sealing surfaces resulting from processing ； 2. Easy to install, saving time on the production of gaskets and installation efforts, reducing the need for installation personnel and lowering costs ； 3. High and low temperature cycling enables long-term stable operation, reducing downtime ； 4. Prevent erosion of the sealing surface caused by high-temperature steam ；
Are PTFE gaskets more expensive than graphite wound gaskets?
This is not absolute; pressure, the cross-sectional size of the gasket ring, and the material of the metal ring all have an impact on the price.
What temperature range can it handle? What pressure ratings are available?
Our company specializes in the production of high-performance expanded polytetrafluoroethylene sealing products in various series, shapes, and specifications. These products can withstand temperatures ranging from -240°C to 260°C, as well as pressures up to 0–8 Mpa. The specific selection can be determined based on your company’s application requirements. For further discussion, please contact us at phone number 19141369821; the same number is available on WeChat