Click to enlargeISO80 to 2.75" OD Conflat 
Conical Reducer

275xISO80-CR-VE
ISO80 to 2.75" OD Conflat Flange
Flange to Flange
Conflat to ISO High Vacuum Adapter
Conical Reducing Nipple

• A: 4.03"
• Conical Reducing Nipple
• 304 Stainless
Vacuum Essential
ISO80x275-CR-VE


2.75" OD CF to ISO80
Conical Reducer
(275xISO80-CR-VE)

275xISO80-CR-VE$259.00

Click to enlarge
Click to enlarge
ISO80 Series Hardware


2.75" OD Conflat Series Hardware


Click to enlarge
Click to enlarge
Custom Adapters and Nipples


ISO x Conflat Adapters



ISO80 (ISO-K) Series
• High Vacuum Flange OD: Ø4.33"
• Tube OD: 3.00"
• ISO-K Claw Clamp Style

ISO80 High Vacuum Flange Equivalents:
ISO-80, LF80, NW80, NW-80, Large Flange, ISO-LF



2-3/4" OD CF Conflat Flange:
• 1.50" Tube OD
• 6 Clearance (Thru) Holes
• 0.265" Bolt Hole Diameter
• Non-Rotatable

2.75" OD CF Conflat Flange (CFF) Equivalents
275CF, CF35, CF38, CF40, CF275
DN35CF, DN40CF, NW35CF



**This Vacuum Essential Includes**
• Conical Reducer: 275xISO80-CR
4-Aluminum Double Claw Clamps (ISO63-100-DC)
1-Stainless/Viton Centering Ring (ISO80-300-SR-V)

1-Bolt Kit (275-BK Series)
10-Copper Gaskets (275-CG Series)

Contact LDS Vacuum 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 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