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Product name |
ProductApplication | Material | Profile |
Standard Hardness Shore A |
Pressure - (max) bar | Temperature |
Sliding Speed (max m/sec) |
Dimension | Price |
Pressure Rating |
Rotary Speed |
pH Range |
Dimensions |
| O-ring - PTFE | PTFE |
|
-200°C+260°C |
|
PTFE (Polytetrafluoroethylene) is a synthetic fluoropolymer of tetrafluoroethylene also known under the trade name Teflon®*
PTFE O-rings are special sealing elements and are used where standard elastomeric O-rings are not adequate.
PTFE O-rings may only be used where working conditions are suitable in static applications, and are not recommended for dynamic and rotary movements.
Because they take up less space and provide two-sided sealing compared with other sealing elements, O-rings make designing easier. Obtaining good results from O-ring applications depends on suitable measurements, choosing correct materials, and suitable surface quality on metal parts.
PTFE O-rings may only be used where working conditions are suitable in static applications, and are not recommended for dynamic and rotary movements.
Because they take up less space and provide two-sided sealing compared with other sealing elements, O-rings make designing easier. Obtaining good results from O-ring applications depends on suitable measurements, choosing correct materials, and suitable surface quality on metal parts.
PROFILE
PRODUCT ADVANTAGES
• Excellent chemicals resistance
• Excellent resistance to heat (+260°C)
• Excellent resistance to cold (-200°C)
• Excellent resistance to ozone, ageing and weathering
• Excellent resistance to water and steam
• Wide range of dimensions
• Low friction
• Some compounds are approved for contact with foodstuffs
• Easy installation and removal
PRODUCT ADVANTAGES
• Excellent chemicals resistance
• Excellent resistance to heat (+260°C)
• Excellent resistance to cold (-200°C)
• Excellent resistance to ozone, ageing and weathering
• Excellent resistance to water and steam
• Wide range of dimensions
• Low friction
• Some compounds are approved for contact with foodstuffs
• Easy installation and removal
APPLICATION
Used in almost in every industry but especially in non-moving machinery and in static sealing applications, e.g. as flange or cover seal.
PTFE O-rings are known to be suitable for application in chemical or thermal environments and are often used in food, pharmaceutical and medical industries.
Used in almost in every industry but especially in non-moving machinery and in static sealing applications, e.g. as flange or cover seal.
PTFE O-rings are known to be suitable for application in chemical or thermal environments and are often used in food, pharmaceutical and medical industries.
INSTALLATION
PTFE O-rings must only be compressed or stretched to a very limited degree during installation to avoid deforming the seal.
The O-rings are fitted into the groove by hand. It is very important that the assembly tools must be of soft material and have no sharp edges. Before installation all individual parts of the seal must be lubricated (PTFE is self lubricated). Be sure not to use a lubricant that will cause deterioration of the seal.
Tolerances: DIN 3771 / ISO 3601
SPECIAL APPROVALS – FOOD-GRADE-QUALITY
We also stock specially approved materials for the food industry; EU 1935/2004, EU2023/2006 and FDA etc.
NOTES
PTFE O-rings must only be for static applications.
We also stock specially approved materials for the food industry; EU 1935/2004, EU2023/2006 and FDA etc.
NOTES
PTFE O-rings must only be for static applications.
*Teflon® is a registered trade mark of DuPont Performance Elastomers.
