KF O'ring with the material of Viton,NBR ,Silicone used in High Vacuum System
Item specifics
- Size
- KF10-KF50
- Material
- Silicone, Viton, NBR
Review
Description
KF O'ring with the material of Viton,NBR ,Silicone Feature
● Viton O'ring are normaly used in vacuum service in place of NBR and silicone rubber.
Viton has a low porosity to most gases (except helium)and withstands high temperature (up to 200°C)
● NBR O'ring are low cost,but their maximum operating temperature(approx.100°C)makes them unacceptable for many vacuum applications.
● Silicone O'ring can withstand temperatures of 250°C for short periods, but silicone tends to harden to prolonged high temperature service, sticking to the metal surface and making the O'ring difficult to replaced.Silicone is also very porous to helium.
KF O'ring with the material of Viton,NBR ,Silicone Specifications
Material | Hardness Range | Temperature Range | Main Properties | ||
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Silicone Rubber
|
50-90 degrees | -100°C to 300°C |
Resistant to high temperatures, resistant to low temperatures, good electrical insulation, strong chemical inertia
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NBR
|
60-90 degrees | -35°C to 120°C |
Oil-resistant, wear-resistant, and oxidation-resistant, it is not suitable for acidic, alkaline, and high-temperature environments.
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Viton
|
55-85 degrees | -20°C to 230°C |
Resistant to high temperatures, oil, high vacuum, acids and alkalis, and various chemicals
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* Color can be customized upon customer’s requirements and the Material of Viton,NBR, Silicone can be choose from.
Size Parameters of O’Ring
| Model No. | Match Center ring Size | Material C/R | Material O'ring | O'ring Size |
| KF10CRVS | KF10 | 304.S.S | Viton | AS-311 |
| KF16CRVS | KF16 | 304.S.S | Viton | AS-314 |
| KF25CRVS | KF25 | 304.S.S | Viton | AS-320 |
| KF40CRVS | KF40 | 304.S.S | Viton | AS-326 |
| KF50CRVS | NW50 | 304.S.S | Viton | AS-330 |
| KF10CRVA | KF10 | AL | Viton | AS-311 |
| KF16CRVA | KF16 | AL | Viton | AS-314 |
| KF25CRVA | KF25 | AL | Viton | AS-320 |
| KF40CRVA | KF40 | AL | Viton | AS-326 |
| KF50CRVA | NW50 | AL | Viton | AS-330 |
| KF10CRNS | KF10 | 304.S.S | NBR | AS-311 |
| KF16CRNS | KF16 | 304.S.S | NBR | AS-314 |
| KF25CRNS | KF25 | 304.S.S | NBR | AS-320 |
| KF40CRNS | KF40 | 304.S.S | NBR | AS-326 |
| KF50CRNS | NW50 | 304.S.S | NBR | AS-330 |
| KF10CRNA | KF10 | AL | NBR | AS-311 |
| KF16CRNA | KF16 | AL | NBR | AS-314 |
| KF25CRNS | KF25 | AL | NBR | AS-320 |
| KF40CRNA | KF40 | AL | NBR | AS-326 |
| KF50CRNA | NW50 | AL | NBR | AS-330 |
* Special Sizes Available Upon Request.
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