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O Ring Colour Identification

O rings come in various colours, and it's important to understand what these colours indicate as the o rings you choose will affect your overall process application.  Ultimately, different o ring colours are used to help differentiate between different materials. ...

Spiral Wound Gasket Compressibility and Pressure Ratings

In order to form a reliable seal, spiral wound gaskets do require a certain degree of pressure.   The applied pressure allows the gasket to be compressed tightly between the mating surfaces preventing any leaks from occurring.  Factors such as operating temperature...

Elastomeric Compounds

What is elastomer?  Elastomeric compounds are rubber seals produced using natural rubbers or manufactured by the chemicals industry.  Elastomeric sealing compounds consist of between 50-60% rubber; the remainder of the compound consists of fillers,...

Is there such a thing as the right flange gasket?

We cannot stress enough how important gaskets and seals can be. Gaskets are vital for an application's reliability and integrity, and trust us when we say, choosing the right gasket now can help you avoid costly issues in the future.  Taking a closer look at pipe...

Plastic gaskets, the best alternative to metal

Plastic gaskets and seals are not that uncommon.  In fact, they’re used in many devices due to the longevity and functionality they offer.  Helping to prevent leaks and maintain temperature control, plastic gaskets help equipment and appliances operate to the best of...

Protecting your seals

Dust gets everywhere.  We see it across the surfaces of our homes and even in our workplaces, especially when the light shines through to show it in its full glory!  However, dust that seeps and builds up within engineering equipment can be disastrous.  Causing damage...

Importance of durometer testing

Durometer or shore durometer is a way for industry professionals to measure how hard such things as plastic, rubber, and non-metallic materials genuinely are.  Its focus is to measure on a Shore A or Shore D scale, looking at how robust material is when examining its...

Metal Detectable O Rings

Metal detectable o rings became a necessary must when it was identified that some chemicals, exposure to extreme temperatures, and continuous vibrations could cause failings in standard o rings.  Failings that not only mean a breaking of the seal, but there is also an...

Tips for best o ring maintenance

If o rings are not maintained, leaks can occur, and water and other fluids can enter the appliance or application, and even product in the mix!  If this happens, damage can occur to internal parts and mechanisms, causing deployment failings, potential false readings,...

What you need to know about O Ring Lubricants

Silicone grease and lubricants aren’t just a nice to have for o rings, but they can quite often be a must-have.  However, with so many greases and lubricants to choose from, it can often be a minefield choosing the best ones and the right ones for your o ring and...

Kammprofile Gaskets for Your Industry 

Kammprofile Gaskets are grooved; covered metal gaskets consisting of a serrated metallic core with a soft facing material. The Kammprofile style gasket is mainly used in vessel applications where often the gasket width is limited. Kammprofiles are also often used as an upgrade on applications currently using metal jacketed gaskets due to the improved leak tightness, ease of installation and the possibility of reuse.

The depth and profile of the groove is specially designed to facilitate densification of the facing material and create a very leak tight seal even at relatively low bolt loads and with use on flanges with face imperfections.

Kammprofile Gaskets

Properties and Benefits of Kammprofile Gaskets 

  • Low Sealing Stress required for installation 
  • Suitable for a range of chemicals 
  • Suitable for use in high temperature and high pressure applications 
  • Can be manufactured to suit standard flange applications and vessels 
  • Can be manufactured for use with narrow flanges 
  • Can be used with uneven bolt loading situations 
  • Soft Facing material prevents damage to flange surface 
  • Can be refurbished and re-used 

Kammprofile Styles
Core Design Profiles 

The standard Core design is to have parallel grooves across the sealing face offering the advantages of even stress distribution.  

Alternatively, a convex profile is available reducing the depth of the groove towards the sealing face centre. This alternative style of design ensures a high sealing stress in the centre of the sealing surface making it more effective for low bolt load applications 

Expanded Graphite is the most commonly used facing material but others can also be used, PTFE for chemically aggressive duties and Mica for high temperature applications. 

Kammprofile Styles
Facing Material Maximum Temperature 
Graphite 550C 
PTFE 260C 
Mica 1000C 
Kammprofile Styles

The central steel core can also be manufactured from a large choice of materials 

Winding / Inner / Outer Ring Material Combinations Maximum Temperature 
Carbon Steel 500C 
304 Stainless Steel 550C 
316/L Stainless Steel 550C 
316 Ti Stainless Steel 650C 
321 Stainless Steel 650C 
347 Stainless Steel 650C 
Duplex 800C 
Nickel 200 600C 
Monel 400 600C 
Titanium 350C 
Hastelloy B-2 450C 
Hastelloy C-276 450C 
Inconel 600 950C 
Inconel 625 450C 
Inconel X-750 1000C 
Incoloy 825 450C 
Kammprofile gaskets are often used in heat exchangers and can be manufactured with many bar configurations. The gasket’s core can also be refurbished and reused.
Kammprofile Bar Configurations
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