Click to enlargeNW40 To ISO63
Conical Reducer
304 Stainless
A: 2.78"
B: 2.37"
C: 1.37"

NW40xISO63 Conical Reducer
Vacuum Essential

• Conical Reducing Nipple
• ISO-MF to ISO-KF Conical Adapter
• ISO to NW, Flange to Flange (ISO63xNW40)
• High Vacuum Fitting
• OD Polish

NW40 to ISO63 Conical Reducing Nipple Adapter

ISO63 (ISO-K) Series
• High Vacuum Flange OD: Ø3.74"
• ISO-K Claw Clamp Style

ISO63 High Vacuum Flange Equivalents:
ISO-63, LF63, NW63, NW-63, Large Flange,

NW40 (KF40) Flange OD: Ø2.18"
• NW40 Centering Ring Counter Bore: 1.62"

NW40 High Vacuum Flange Equivalents
KF40, KF-40, K150, NW-40, QF40, ISO-QF

Conical Reducing Nipple


Click to enlarge
Click to enlarge
All NW40 Hardware

ISO63 Series Hardware

**This Vacuum Essential Includes**
NW40 to ISO63 Straight Reducer: NW40xISO63

ISO63 Series
4 Aluminum Double Claw Clamps ISO63-100-DC
1 Stainless/Viton Centering Ring ISO63-250-SR-V

NW40 Series
1 Aluminum Wing Clamp NW40-150-CW
1 Stainless/Viton Centering Ring NW40-150-SR-V

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