Zero Length Reducers 
1.33" OD Conflat Flange (CF) Series 
• 6 Tapped Bolt Holes (8-32 Thread) 
• Uses 133-BT Tapped Bolt Kit
• Special Purpose Flange 
• 304 Stainless 
• Conflat Flange to Conflat Flange Adapter 
• High and Ultra-High Vacuum (UHV) Flange 
 1.33" OD Conflat Flange (CF) Equivalent Names 
CF133, DN16CF, NW16CF, CF16, 133CF, 
1-1/3" Mini Conflat, CFF  
 ZLR Zero Length Reducer Series 
• DNCFxDNCF (CFxCF) 
• Different Size Conflat On Each Side 
• Double-Sided Conflat Flange (CF)  
• Double Faced CF Flange 
• Smaller Flange Has Tapped Holes 
• T2  Indicates Large Flange is Tapped 
• US Inch Threads (Imperial) 
• Knife Edge on Both Sides 
• UHV Vacuum Rating: 1x10-13 Torr (approximately) 
• Temperature Range: -200°C to 450°C 
• Maximum ID of the Small Flange Limits the Bore