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NW25 Sintered Metal Filter

NW25 (KF25) Centering Ring to Sintered Metal Filter

• NW25 (KF25, QF25) Series
• Viton (Fluorocarbon, FKM) O-Ring
• Viton: 200°C Maximum
• 0.02 mm Pore Size
• Mesh: 20µm (20 Microns) (750 Mesh)

NW25 (KF25) Flange OD: Ø1.57"
• NW25 Tube OD: 1"
• NW25 Centering Ring Counter Bore: 1.03"

NW25 High Vacuum Flange Equivalents
KF25, KF-25, K100, NW-25, QF25, ISO-QF

NW25 Throughput: 4.2m3/h*
*Air at 20°C, 200 mbar pressure differential

LEY-88352 88352 P105323 KF Mesh Screen Ring

NW25 Centering Ring Sintered Metal Filter


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NW25 O-Rings (All)

Larger Mesh Screen Rings

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NW25 Series Clamps

All NW25 Hardware

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.
Viton® is a registered trademark of DuPont Dow Elastomers
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