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PTFE high performance rotary shaft seals type D with negatively shaped sealing lip. Ideal for applications where no dead spaces are allowed, for example in the food and pharmaceutical industries. The seal consists of a stainless steel housing, a static sealing element made of FKM and the sealing lip made of a special application-modified PTFE compound.
Versatile fluids used in rotary applications, with appropriate choice of material, lack of lubrication and dry running also possible.
Standard material: PTFE PT033 as well as various application-modified PTFE compounds Secondary seal FKM or other elastomers possible according to customer requirements
When installing WHLDP seals, careful handling is important to avoid damaging the seal lip. If the seal is installed directly on the shaft, insertion chamfers must be provided at the shaft end. These must be free of notches, sharp edges or rough machining grooves. The diameter of the lead-in chamfer must be smaller than the unloaded diameter of the sealing lip. The angle of the bevel should be as flat as possible within the given range.
Various applications for sealing rotating or swivelling machine elements, e.g. in the chemical and process engineering, aerospace, shipbuilding, motor sports or electric drive sectors in general industry and the automotive industry. By using correspondingly compliant materials, applications in the food and pharmaceutical industries can also be covered.
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