Product Name: PTFE Customized Spring Energized Seals for Rod
Our spring-activated PTFE lip seals are used in rod, piston, face, and rotary sealing applications. KAFLON is commonly utilised in applications where elastomeric seals cannot meet the frictional, temperature, or chemical resistance requirements. These seals can be built to fulfil the requirements of the most challenging seal conditions by utilising a variety of jacket profiles, PTFE compounds, spring kinds, and lip designs.
PTFE materials
The selection of seal materials typically requires a compromise between advantages and disadvantages. There are hundreds of different PTFE materials with a variety of fillers. Common fillers include glass fibre, carbon, graphite, molybdenum disulphide, metal oxides and various polymers. Each possesses different properties, appropriate for different applications and service conditions. Common to all filled PTFE materials are their improved resistance to wear and deformation.
Selecting the appropriate material for the metal case and the O-ring is also of significant importance to achieving satisfactory sealing performance. Contact KAFLON for additional information.
Unfilled PTFE provides, in most cases, a lower coefficient of friction than a filled PTFE material and the lowest degree of wear of the seal counterface. However, a sealing lip made of an unfilled PTFE material has limited resistance to wear and deformation under load.
Installation
Special care must be taken during handling and installation of PTFE seals.
Size range and availability
The bulk of KAFLON's PTFE radial shaft seals are custom-made to match the needs of each application. There are, however, certain conventional sizes available in the 6 to 200 mm shaft diameter and 16 to 230 mm bore diameter ranges. For further information about designs and sizes, please contact Xlong Seal.
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