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Aluminum Adaptive Centering Ring NW20 to NW25 (NW20-25-AAR-S)
NW20-25-AAR-S
NW25xNW20 Aluminum 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-AAR-S
NW25xNW20 Aluminum 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)