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Category: CF Blank Flange Rotatable

Rotatable ConFlat (CF) Blank Flanges with untapped bolt holes, also referred to as Rotatable blind flanges with through-holes, incorporate a seal mechanism using a knife-edge machined beneath the flange’s flat surface. Tightening the bolts of a flange-pair results in the knife-edges creating annular grooves on both sides of a soft metal gasket. The extruded metal effectively fills any machining marks and surface defects in the flange, ensuring a secure and leak-tight seal.

Assembly instructions for CF Flanges:
• Apply a small amount of high temperature anti-seize compound to the bolt threads.
• Check that both flange surfaces are clean and sealing edges are free from nicks and scratches.
• Use clean, lint free gloves, unpack gasket.
• Place gasket in the knife edge.
• Align the mating hole pattern and leak test grooves.
• Install the proper bolts and tighten hand tight. Check to see that the flange faces are parallel.
• Tighten the bolts 1/4 to 1/2 turns using a circular clockwise pattern until the flange faces are metal to metal.

Dimensions: DN19-DN350
Material: SS304 & SS316L

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