Kammprofile gaskets: "Guardian" in the field of high-pressure and high-temperature sealing

1. Product structure design

Metal skeleton: One-piece stainless steel (304/316L), titanium alloy or nickel-based alloy (such as Inconel 625) core, hardness up to HRB 80-90, providing compressive strength ≥ 200MPa support force to resist flange deformation.

Serrated groove: The surface of the Kammprofile gaskets are precision-machined concentric saw teeth (tooth height 0.2-0.5mm, density 8-12 teeth/cm), forming a labyrinth sealing channel with multi-point line contact. The higher the pressure, the tighter the seal.

Soft sealing layer: The surface of the toothed gasket is covered with flexible graphite or PTFE, filling microscopic defects, and is pressed into the tooth groove under preload to form a high-density sealing ring.

Sealing principle: Under pressure, the soft layer and the metal tooth groove form a mechanical interlocking, the metal skeleton maintains rigidity at high temperature, and the soft layer compensates for thermal deformation to achieve a "self-tightening effect".

2. High pressure and high temperature resistance

• Adaptability to special working conditions

High temperature resistance: The metal core can withstand 650-1180°C high temperature, and the graphite layer can withstand 800°C high temperature in an inert environment.

High pressure resistance: Working pressure ≤25MPa (up to 30MPa), preload force can reach y=70MPa, much higher than rubber gasket (y≈10MPa).

Alternating load: During thermal cycles or pressure fluctuations, metal rebound compensates for bolt stress relaxation to avoid leakage.

• Sealing performance is higher than that of traditional gaskets