Kammprofile Gasket

Kammprofile Serrated Gaskets


IDT-Kammprofile gasket is perfectly suited for secure sealing of flange connections in extreme operating conditions. They combine the specific properties of non- metallic gaskets [good elasticity to the flange surface] and metal gaskets [high stability and bursting strength]. The design allows high compression of the non- metallic layer, promoting low diffusion, and ensures that the serrated tips remain covered with non-metallic material, even in high surface pressure applications. In a compressed stage, the coverage of the serrated tip is still at approx. 0,1 mm. Flange surface roughnesses of Rz <=80 µm are recommended. Kammprofile gasket are described in DIN EN 1514-6 with regards to base body profiling, thickness and material of the layers. It complies with TA Luft 2002 [VDI 2440/2200]; the calculatory leakage proof for VDI 2290 can also be supplied.


  • Temperature resistance depending on non-metallic layer and selected metallic carrier material
  • Constant temperature range for graphite layer:
    -200 °C to approx. 450 °C; higher temperatures are possible depending on the design
  • Constant temperature range for PTFE layer:-200°C to approx.250 °C •
  • Very high operating pressures [400 bar]
  • Media resistance depending on non-metallic layer and selected metallic carrier material
  • High operational safety due to broad range of applications
  • Very low leakage rates for gases and liquids
  • Complies with TA Luft 2002[VDI 2440/2200] leakage requirements
  • Complies VDI 2290 [with calculatory leakage certificate following DIN EN 1591-1]
  • Fire Safe Test [Graphite
  • BAM-test report for liquid and gaseous oxygen [graphite]
  • Blow-out resistance [graphite]
  • No ageing and brittling even at high temperatures
  • Does not present a health risk
  • Very good handling during transport,installation and dismant-ling,mechanically stable
  • No excess pressing with standard tension devices
  • Individual labeling of every gasket on the centring ring
  • Use of low chloride graphite layers [chloride content < 25 ppm] and adhesive [chloride content < 12 ppm] allows the safe use of Kammprofile gasket even with parts made from austenitic materials


  • Kammprofile Gasket for pipeline flanges, device and container flanges,pumps and valves
  • Kammprofile Gasket are widely used in the chemical and petrochemical sector, in conventional power stations band nuclear power plants, for steam generation and in device construction, especially wherever high temperatures and pressures have to be managed safely
  • Flange roughness of Rz <=80 µm is recommended
  • For higher temperatures >= 550 °C with non-metallic layer made from mica or silver and metallic carrier material made from 1.4828


  • Carrier
    Standard material 1.4571, additional materials upon request
  • Layers
    SIGRAFLEX®-graphite foil [WS 3800, WS 3803, WS 3805]
    Dyneon™ TFM™ 1600 [WS 7110] or unsintered PTFE [WS 7739]
    Silver, mica
    Additional materials upon request

Product Range

  • Dimensions and set-up following DIN EN 1514-6, DIN EN 12560-6; standard design with respective non- metallic material
  • Carrier serrated on both sides, partition 1.0 mm; with integral centering ring and pre-determined breaking point for raised face flanges:KD20
  • Carrier serrated on both sides, partition 1.0 mm;with floating centering ring for raised face flanges:KD30 [recommended upward of DN 150]
  • Dimensions and set-up following DIN EN 1514-1,DIN EN 12560-1, form TG, SR; standard design with respective non-metallic material
  • Carrier serrated on both sides; partition 1.0 mm;for tongue/groove flanges or groove/groove flanges or male/female flanges

Design Variations

  • Serrated partition 1.5 mm
  • Additional inner eyelet KD0
  • PTFE-envelope instead of layer KD04 I KD13 I KD23 I KD3
  • Convex geometry KD06 | KD24 | KD34
  • PTFE-layers clipped [without adhesive] KD09
  • Non-standard profile for carriers with less thicknes
  • For apparatuses: With cross sections according to customer specification, bend and welded designs


  • Manufacture
  • Nominal width
  • Nominal pressure stage
  • Carrier material
  • Layer material

Sealmax has now tied up with KWO and IDT Germany for marketing their product range in India