The Highest Quality O-Rings Available When You Need Them

DESIOR TECHNOLOGY CO.,LTD has served as the leading rubber component manufacturer in China.

  PTFE Coated O-Rings   

 

  O-Ring Groove Design Extrusion Limits  

Contact Us For Assistance Or SamplesClick Here and contact us today to receive a free quote or if you have any questions regarding sizing.

An o-ring is contained in a gland and forced to flow into the surface imperfections of the glands and any clearance gaps available to it.

An o-ring can perform sealing by means of squeeze under low pressure conditions. The extent of extrusion depends upon the hardness of O-ring, the pressure, and the size of the clearance gap.

 

  O-Ring Size & Dimension Charts  

PTFE Coated O-RingsThere are two main o-ring sizing types: standard and metric. Standard was developed for use in the United States, while the international community uses -metric sizes. The metric sizes are further broken down by region, notably Europe and Japan.

 

Learn more about O-Ring sizes using the links below to explore their dimensions in an interactive chart.

• Standard AS-568B

• Japanese Metric O-Rings (JIS)

• European Metric O-Rings (DIN)

Seal & Design has all these sizes and more. We can provide virtually any required size.

 

  We Supply This Standard Oring  

● AS 568A USA ● BS 4518 England ● DIN 3771 Germany ● SMS 1586 Sweden
● AFNOR 47501 France ● JIS B2401 Japan ● JASO F404 Japan ● ISO 3601 International

 

  Service Guarantee  

• Perfect logistics system and SAP system to provide customers with accurate service guarantee;

• Guaranteed shortest delivery time based on stock.

 

  PTFE Coated O-Rings  

Coated o-rings typically have a thin film of PTFE (a generic compound of Teflon, a trademark of the Chemours Company), commonly termed a “coating” which is adhered to the o-ring. The PTFE external treatments can be dry or wet coatings or dips. 
Another possible coating is poly(p-xylylene) polymers (trademark name: Parylene). These polymers are chemically vapor deposited. These coatings take place through a vacuum deposition where the polymer or Parylene condenses on the o-rings surface in a polycrystalline fashion.

 

  Reasons For Coated O-Rings  

The most common reasons for using a specific coating to enhance the performance characteristics of an o-ring or a seal include friction reduction, ease of installation and contrasting color for ease of identification, and increased wear life for less downtime. A coated o-ring or seal is free from dirt and debris because you don’t need to use oil-based lubricants and it can reduce and/or prevent damage from automated equipment.

 

  PTFE Coated O-Ring Color Options  

The most common color for PTFE coated o-rings is blue.Coatings are available in a wide variety of colors that can include light, medium and dark blue, black, purple, pink, red, orange, yellow, brown, light, medium and dark green and clear. 
O-rings made from Buna (Nitrile°) and Viton are the most common elastomers that are coated with PTFE to meet application requirements.
 
DESIOR carry a variety of standard o-ring sizes and colors. Contact us today to learn more.

 

Keyword:

o-rings,sizes

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