About 8,000 types of vacuum components in stock at all times.Business Hours： 9:00-18:00, excluding weekends and holidays
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- Cosmotec for Vacuum Components
- Vacuum Component
- Gasket / Center ring / O-ring
- Center ring (NW / KF standard)
- With outer guide (NW / KF standard)
- 34.025032.121.325 Seal NW25 SUS316L / Viton® / SUS316L
34.025032.121.325 Seal NW25 SUS316L / Viton® / SUS316L
▼NW/KF Center Ring
For NW/KF flange (metal piping)
One-touch connection with inner ring guide
With outer ring can be used for high pressure applications.
▼The following types are standardized (List)
Applicable flange (NW): 10, 16, 25, 40, 50
Guide material: SUS, Teflon, aluminum
O-ring material: Viton, Nitrile, Karlez®, FEP
O-ring (Viton® / Nitrile)
※For glass piping (here)
▼We also offer the following products
Blank type: Processable type without a hole in the center
Aluminum edge seal: Ultra high vacuum even with NW flange ( 10-⁹Pa range) even with NW flanges (one-time use only, use clamp for metal seal)
Center Ring with Mesh: Mesh to prevent contamination
Conversion center ring: Converts between NW10 and NW16 without inserting nipples, etc.
▼Options
We can also provide drilling (orifice machining, etc.) and other options for blank types. Please contact us from the "Inquiry" button on the right side of the page.
For precision cleaning requests, click here.
| Basic Information | |
|---|---|
| Seal / gasket material | Viton ® |
| Maximum temperature | 200℃ |
| The lowest temperature | -20℃ |
| Available pressure | Atmospheric pressure ~ 10 |
| Leak rate | <1.3x10-7Pa･㎥/sec |
| Pressurization | ○ |
| Non-magnetic | ○ |
| Clean Room | ○ |
| RoHS2 corresponding | ○ |
front.product.product_code Model |
NW/KF | A | C | J | The inner ring | The outer ring | Stock & Delivery |
front.product.price front.product.tax_included2 |
|---|---|---|---|---|---|---|---|---|
| 25 | 40 | 24 | 33 | SUS 316L | SUS 316L | |||
| NW/KF | A | C | J | The inner ring | The outer ring |
|---|---|---|---|---|---|
| 25 | 40 | 24 | 33 | SUS 316L | SUS 316L |
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RoHS2 Download
Download the RoHS2 compliance report for the following products.
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