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ISO63 to 4.50" OD Conflat
Straight Reducer

ISO63x450-VE
ISO63 to 4-1/2" OD Conflat
Flange to Flange Adapter

Vacuum Essential
• Tube OD: 2.50"
• A: 4.33"
• B: 2.37"
• Straight Reducing Nipple
• OD Polish
• 304 Stainless

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, MF



4-1/2" OD Conflat Flange (CF):
• 8-Clearance (Thru) Holes
• 0.332" Bolt Hole Diameter
• Non-Rotatable

4.50" OD Conflat Flange (CFF) Equivalents
• 450CF, DN63CF, NW63CF, CF63, CF64 CF450



ISO63 to 4.50" OD Conflat Straight Reducer
ISO63x450-VE

ISO63x450-VE$252.00

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ISO63 Series Hardware


4.50" OD Conflat Series Hardware


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Custom Adapters and Nipples


ISO x Conflat Adapters




ISO63 Flange:
• Flange OD: Ø3.74"

4.50" OD Conflat Flange:
8-Clearance Holes
• Non-Rotatable

***This Vacuum Essential Includes***
• Straight Reducer: ISO63x450
• (4) Aluminum Double Claw Clamps (ISO63/100-DC)
• (1) Centering Ring, Stainless/Viton (ISO63-250-SR-V)

• 1-Bolt Kit (450-BK Series)
• 10-Copper Gaskets (450-CG Series)

Contact LDS with any questions:
Phone (407) 862-4643 via Fax (407) 862-8723 or info@ldsvacuum.com

LDS Vacuum Products is a 100% woman owned company.
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