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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(Hours 9:00 to 18:00 except Saturdays, Sundays, and holidays)
- Cosmotec for Vacuum Components
- Vacuum Component
- Gasket / Center ring / O-ring
- Center ring (NW / KF standard)
- With inner guide (NW / KF standard)
- NW / KF center ring SUS / Viton®
NW / KF center ring SUS / Viton®
▼NW/KF Center Ring
Center ring for vacuum (10-⁷Pa level)
For NW/KF flange (metal piping)
One-touch connection with inner ring guide
With outer ring can be used for high pressure applications
Viton® O-rings can be used up to 200°C
Calrez® for high temperature applications can be used up to 315°C
Inner ring material is aluminum or stainless steel (SUS316L)
Inner ring also serves to prevent excessive clamping torque
▼The following types are standardized (list)
Applicable flanges (NW): 16, 25, 40, 50, 63, 80, 100, 125, 160, 200, 250
Guide material: SUS, Teflon, aluminum
O-ring material: Viton, Karlez®, FEP
O-ring (Viton®)
※For glass piping (here)
※For JIS-VF/VG flange here.
※For ISO flanges, here.
▼We also have the following products
Blank type: Machinable 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 | |
|---|---|
| The inner ring | SUS 316L |
| Seal / gasket material | Viton ® |
| Maximum temperature | 200℃ |
| The lowest temperature | -20℃ |
| Available pressure | Atmospheric pressure ~ 10 |
| Leak rate | <1.3x10-7Pa･㎥/sec |
| Non-magnetic | ○ |
| chemical resistance | ○ |
| Clean Room | ○ |
| RoHS2 corresponding | ○ |
| Pressurization | △ |
We have 11 type candidate
※ Please click on the product code or model for more information.
front.product.product_code Model |
NW/KF | B | C | K | C1 | J | Stock & Delivery |
front.product.price front.product.tax_included2 |
|---|---|---|---|---|---|---|---|---|
| 16 | 17 | 16 | 25 | - | - | You need to sign in to show price and stock Sign in | ||
| 25 | 26 | 24 | 35 | - | - | You need to sign in to show price and stock Sign in | ||
| 40 | 41 | 40 | 49 | - | - | You need to sign in to show price and stock Sign in | ||
| 50 | 52 | 50 | 61.5 | - | - | You need to sign in to show price and stock Sign in | ||
| 63 | 70 | 68 | 80 | - | - | You need to sign in to show price and stock Sign in | ||
| 80 | - | 83 | - | 81 | 98 | You need to sign in to show price and stock Sign in | ||
| 100 | - | 102 | - | 100 | 118 | You need to sign in to show price and stock Sign in | ||
| 125 | - | 127 | - | 125 | 144 | You need to sign in to show price and stock Sign in | ||
| 160 | - | 153 | - | 151 | 167 | You need to sign in to show price and stock Sign in | ||
| 200 | - | 213 | - | 211 | 227 | You need to sign in to show price and stock Sign in | ||
| 250 | - | 261 | - | 259 | 275 | You need to sign in to show price and stock Sign in | ||
| NW/KF | B | C | K | C1 | J |
|---|---|---|---|---|---|
