Category: CF Bored Flange Non-Rotatable Tapped

Non-Rotatable CF Bored Flanges – Precision Fit for Ultra-High Vacuum Systems

Our Non-Rotatable ConFlat (CF) Bored Flanges—also known as CF fixed bored flanges—are designed for perfect alignment and secure sealing in ultra-high vacuum (UHV) applications. Available in bore sizes in both inches and millimeters, these flanges are engineered to pair seamlessly with a rotatable CF flange, making installation and alignment effortless.

Key Advantages:

• Material Excellence: Crafted from corrosion-resistant stainless steel (SS304 & SS316L) for durability.
• Vacuum-Tight Seal: A flat copper gasket positioned between two knife edges ensures a leak-free connection.
• Sexless Design: Identical profiles on mating flanges eliminate compatibility issues—no need to stock two types.
• Size Range: Available from DN19 to DN350.

Quick Assembly Guide

1. Apply a small amount of high-temperature anti-seize compound to bolt threads.
2. Ensure flange surfaces are clean and free from scratches.
3. Use lint-free gloves and unpack the gasket.
4. Place gasket in the knife edge.
5. Align hole pattern and leak test grooves.
6. Install bolts and tighten hand-tight, ensuring faces are parallel.
7. Tighten bolts ¼ to ½ turns in a clockwise circular pattern until faces are metal-to-metal.