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NW20 To NW25
Adaptive Centering Ring
304 Stainless
Silicone O-Ring

NW25xNW20 Stainless Adaptive Centering Ring
Silicone O'Ring

• NW20 to NW25 (KF20 to KF25)
• Centering Ring Reducing
• NW20xNW25 High Vacuum Hardware

Silicone O-Ring
• Chemical Applications
• 200°C Maximum

Change Your Flange Size With One Centering Ring!

The use of Adapter Centering Rings is simple:
One side of the ring is NW20 and the other NW25.
By using this centering, you CONVERT a
NW20 flange size to a NW25 Flange

NW, KF, QF Series High Vacuum Flanges

NW20 (KF20) OD: 1.57" – Centering Ring Counter Bore: 0.86"

NW25 (KF25) OD: 1.57" – Centering Ring Counter Bore: 1.03"

NW20 Flanges Are Sometimes Used Overseas (Uncommon)

NW20-25-ASR-S Compare to: K100087-CRS 710032

Stainless Adaptive Ring NW20 to NW25

NW20-25-ASR-SPrice: $14.00Sale: $9.50

Click to enlarge
Click to enlarge
Uses NW25 Series

Uses NW25 Series

Click to enlarge
All NW20 to NW25
Adaptive Rings

Contact LDS Vacuum with any questions:
Phone (407)862-4643 via Fax (407)862-8723 or

LDS Vacuum Products is a 100% woman owned company and
certified Woman Owned Small Business (WOSB)
The logos and/or trademarks appearing on this page are not owned by or registered to LDS but, rather, designate products sold by LDS, and are owned and/or registered to the manufacturers or suppliers of the products.
Images Shown May Be For Reference Only

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