PTFE Sealing Lip

rubber gaskets

 

PTFE sealing lips are ptfe compound discs that are mechanically formed to a diameter slightly smaller than the shaft. The forming of the lip creats a shape that takes advantage of the hoop strength of the ptfe compound discs. This hoop strength provides the load that is critical for low or no pressure applications to obtain a positive seal.The sealing element typically has a smooth surface contacting the shaft. For applications sealing liquid at below 0.1Mpa, a hydrodynamic spiral feature can be machined into the surface of the sealing element to provide a positive pumping action to drive fluid away from the air side of the seal.It is critical to match the seal to the shaft rotation to ensure positive sealing.

We supply ptfe sealing lips for many oil seals and rotary shaft seals, compounds with excellent resistance to wear and chemical fluids.


Sealing element Material Selection:
ER1001 Premium grade virgin ptfe for static, slow-dynamic or light-duty application. Also for food-contact service requiring FDA approval. Color: white
ER2030 Highly wear resistant in fast-rotary service and on hardened shafts in well-lubricated rotary service, Color:Dark grey
ER8030 Good wear resistant in fast-rotary applications. Less abrasive to soft shaft and in poorly-lubricated service.
ER3020 Low of friction and excellent wear resistance combined with low surface pressure.

 

 

Is the PTFE  fittings you are looking for? If you are unsure what types of PTFE parts is best for your application then you can contact us for consult.we also supply other parts such as PTFE seals,PTFE bush, PTFE washer.

If you can't find what you are looking for, or require a special design of ptfe sealing lip in specific performance, please do not hesitate to contact us.

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