Working Principle: The mechanism relies on serrated grooves and a compressible facing layer:
- Grooved Metal Core
- A solid metal ring (stainless steel, carbon steel, or other alloys) is machined with fine concentric serrations on both sides.
- Provides mechanical strength, rigidity, and resistance to blowout even under extreme pressure.
- Soft Facing Layer
- A thin layer of soft material (flexible graphite, PTFE, or ceramic) is bonded or layered onto both faces of the grooved core.
- This facing fills microscopic surface imperfections on the flange faces.
- Concentrated Sealing Points
- The serrations act as multiple concentric sealing lines rather than one continuous flat surface.
- Under bolt load, the soft facing is compressed into these grooves, creating numerous parallel sealing points that enhance leak-tightness.
- Load Distribution and Recovery
- The metal core resists excessive compression, maintaining consistent gasket thickness and preventing crushing.
- The soft facing provides resilience, allowing the gasket to accommodate minor flange surface irregularities and thermal cycling while maintaining seal integrity.
Primary Use: The primary use of a Kammprofile gasket is to provide a robust, high-performance seal for critical flanged joints operating under high pressure, high temperature, and cyclic loading conditions, where reliability and minimal maintenance are essential.
Common Applications: Kammprofile gaskets are widely used in:
- Heat exchangers and shell-and-tube equipment
- High-pressure and high-temperature piping systems
- Petrochemical and refinery process equipment
- Power generation plants (boilers, turbines)
- Pressure vessels and reactors
- Compressor and pump casings
- Critical valve bonnet joints
- Applications requiring fire-safe or fugitive emission-compliant sealing
