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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    Isolator
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    Vacuum Component
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Contact Us
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 outer guide (NW / KF standard)
  6. NW/KF Center ring Aluminum/SUS/Viton® (NW/KF)

NW/KF Center ring Aluminum/SUS/Viton® (NW/KF)

NW/KF Center ring Aluminum/SUS/Viton® (NW/KF)

▼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 200℃
The lowest temperature -20℃
Available pressure Atmospheric pressure ~ 10
Leak rate <1.3x10-7Pa･㎥/sec
Pressurization ○
Non-magnetic ○
Clean Room ○
RoHS2 corresponding ○
Inquiry for this subcategory

We have 16 type candidate

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

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
30253
34.121.516
16 30 16 23 SUS 316L Aluminum
30238
34.121.716
16 - - - Aluminum Aluminum
30145
34.121.816
16 30 16 23 Aluminum Aluminum
30132
34.121.325
25 40 24 33 SUS 316L SUS 316L
30138
34.121.525
25 40 24 33 SUS 316L Aluminum
30146
34.121.825
25 40 24 33 Aluminum Aluminum
30134
34.121.340
40 55 40 48 SUS 316L SUS 316L
30139
34.121.540
40 55 40 48 SUS 316L Aluminum
30241
34.121.740
40 - - - Aluminum Aluminum
30147
34.121.840
40 55 40 48 Aluminum Aluminum
30136
34.121.350
50 75 50 59 SUS 316L SUS 316L
30140
34.121.550
50 75 50 59 SUS 316L Aluminum
30260
34.121.750
50 - - - Aluminum Aluminum
30511
34.121.363
63 87 68 77 SUS 316L SUS 316L
30191
34.212.E08
80 - - - SUS 304 Aluminum
30192
34.212.E10
100 - - - SUS 304 Aluminum
NW/KF A C J The inner ring The outer ring
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NW/KF センターリング アルミ/SUS/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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