Serrated Gaskets (Kammprofile Gaskets) are machined from solid metals in a variety of shapes. Serrated Gaskets are designed for high pressure,high temperature or highly corrosive applications by selecting the most suitable material and shapes. Serrated Gaskets are made of many kinds of metal. There are SS304 Serrated gasket, SS304L serrated gasket, SS316 serrated gasket, SS316L serrated gasket,carbon steel serrated gasket, copper serrated gasket, tinplate serrated gasket etc. Serrated gaskets can also be made of some special type of materias. The metal of serrated gasket is based on the temperature, preesure and liquid.
Serrated Gaskets (Kammprofile Gaskets) consist of a metal core, stainless steel with concentric grooves on both sides. A sealing layer is usually applied on either side and depending on the service duty. The material for this layer can be expanded graphite, PTFE, asbestos free gasket sheeting materials or some soft metal. It can be used without sealing layers to provide an excellent sealing but there is a risk of flange surface damage especially at high seating pressure. Serrated Gaskets (Kammprofile Gaskets) are the preferred gasket when improved performance at low seating stresses is required. Serrated Gaskets features excellent anti-blow-out properties linked with the reliability of a solid metal-to -metal seal combined with a soft sealing face to provide a tighter joint. It is particularly suitable for applications where high temperature,pressures and fluctuating conditions are encountered. Non-metal cover layers ensure that flanges are not damaged even at extreme loads. This gasket is an ideal replacement of jacketed gaskets for heat exchangers,vessels, reactors and various flange connections.
Material Selection:
Metallic Materials
Code of Germany
Hardness/HB
Temperature
Density g/cm3
Thickness mm
Carbon Steel
1.1003/1.0038
90~120
-60~500
7.85
2
3
4
SS304,SS304L
1.4301/1.4306
130~180
-250~550
7.93
SS316,SS316L
1.4401/1,4404
130~180
-250~550
7.98
Prime Features Of Serrated Gaskets (Kammprofile Gaskets)
> Suitable for a range of chemicals
> Suitable for use in high pressure and high temperature applications
> Can be refurbished and reused
> Can be manufactured to suit standard flange applications and vessels.
> Can be manufactured for use with narrow flanges
> Better leak tightness than spiral wound gasket
Material of construction
Carbon steel, stainless steel, 321, 347, monel 400, inconel, incoloy, nickel, titanium, hastelloy, copper
Coating materials: Graphite, PTFE etc.
Surface Materials:
Flexible Graphite, Asbestos Shet, Non-asbestos sheet,PTFE,Mica,Lead, Aluminum, etc.
APPLICATIONS Of Serrated Gaskets (Kammprofile Gaskets) Accommodates standard ASME flanges as well as weaker and non-circular flanges Economical replacement for jacketed heat exchanger gaskets Seals less-than-perfect flanges Handles pressures from vacuum to Class 2500 Withstands temperatures from cryogenics to 2000°F (1090°C)- depending on sealing material and metal Source: wilsonpipeline Pipe Industry Co., Limited (www.wilsonpipeline.com)
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