275xISO80-CR 
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 
 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 
 Compare to: ISO80x275-CR-VE  P103829  5000711 275XLF80-CR   ANC-275-ISO-80-OF 275xISO80-CR-VE