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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Shipping accepted on the day on orders until 17:00
(Hours 9:00 to 18:00 except Saturdays, Sundays, and holidays)
  1. Cosmotec for Vacuum Components
  2. Vacuum Component
  3. Gasket / Center ring / O-ring
  4. Center ring (NW / KF standard)
  5. With inner guide (NW / KF standard)
  6. NW / KF center ring Viton ®
  1. Cosmotec for Vacuum Components
  2. Vacuum Component
  3. NW / KF standard
  4. Center ring / seal
  5. NW / KF center ring Viton ®

NW / KF center ring Viton ®

NW / KF center ring Viton ®

▼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.

see next
Basic Information
Seal / gasket material Viton ®
Maximum temperature 150℃
The lowest temperature -20℃
RoHS2 corresponding ○
Inquiry for this subcategory

We have 13 type candidate

※ Please click on the product code or model for more information.

front.product.product_code
Model
 NW/KF A B The inner ring
Stock & Delivery
front.product.price
front.product.tax_included2
20111
NW10CRSV
10 12 10 SUS 304
25522
NW16CRSVA
16 17 16 SUS 304
25523
NW25CRSVA
25 26 25 SUS 304
25524
NW40CRSVA
40 41 40 SUS 304
25525
NW50CRSVA
50 52 50 SUS 304
30268
34.121.850-iz
50 52 50 Aluminum
21978
NW63CRSV
63 70 68 SUS 304
30247
34.211.808
80 83 81 Aluminum
30184
34.211.810
100 102 100 Aluminum
30471
34.211.812
125 127 125 Aluminum
30432
34.211.816
160 153 151 Aluminum
30612
34.211.820
200 213 211 Aluminum
30185
34.211.825
250 261 269 Aluminum
NW/KF A B The inner ring
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Flange

The inner ring

NW/KF センターリング バイトン® admin.label.item.catalog_image
Shipping accepted on the day on orders until 17:00 Hours 9:00 to 18:00 except Saturdays, Sundays, and holidays
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