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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  • Feedthrough Feedthrough
    Feedthrough
  • Isolator Isolator
    Isolator
  • Viewport Viewport
    Viewport
  • Vacuum Component Vacuum Component
    Vacuum Component
  • Vacuum Valve Vacuum Valve
    Vacuum Valve
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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. NW / KF standard
  4. Center ring / seal
  5. NW / KF outer center ring SUS / Viton ® / SUS
  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 outer center ring SUS / Viton ® / SUS

NW / KF outer center ring SUS / Viton ® / SUS

NW / KF outer center ring SUS / Viton ® / SUS

▼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 7 type candidate

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

front.product.product_code
Model
 NW/KF A B E The inner ring The outer ring
Stock & Delivery
front.product.price
front.product.tax_included2
26175
NW10CRSVOA
10 12 10 30 SUS 304 SUS 304
stock
3 1-2 Business Days
When out of stock
30 Business Days
2,300JPY (with tax 2,530JPY)
26176
NW16CRSVOA
16 17 16 30 SUS 304 SUS 304
stock
4 1-2 Business Days
When out of stock
30 Business Days
3,700JPY (with tax 4,070JPY)
26177
NW25CRSVOA
25 26 25 41.5 SUS 304 SUS 304
stock
56 1-2 Business Days
When out of stock
30 Business Days
4,700JPY (with tax 5,170JPY)
26178
NW40CRSVOA
40 41 40 56 SUS 304 SUS 304
stock
88 1-2 Business Days
When out of stock
30 Business Days
5,700JPY (with tax 6,270JPY)
26179
NW50CRSVOA
50 52 50 75 SUS 304 SUS 304
stock
85 1-2 Business Days
When out of stock
30 Business Days
7,100JPY (with tax 7,810JPY)
30360
34.211.P06
63 - - - Aluminum Aluminum
stock
5 1-2 Business Days
2,800JPY (with tax 3,080JPY)
30328
34.711.E06
63 - - - SUS 304 Aluminum
stock
34 1-2 Business Days
6,700JPY (with tax 7,370JPY)
NW/KF A B E The inner ring The outer ring
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NW/KF アウターセンターリング SUS/バイトン®/SUS 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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