Fishbone gasket is the most advance and reliable gasket available in the UK and the world today.
Fishbone gasket has the lowest leak rate of any gasket ever tested and the only gasket on the market that is designed to adapt to pressure changes in your system without live loading/Disc springs .
Fishbone gasket is the only gasket you will ever need.
Fishbone gaskets is now available in the UK form Kem-tron sealing.
Benefits & Advantages
Internally self-energized by fluid pressure for better sealing performance
Interchangeable with all spiral wound and Camprofile gaskets
Will not damage flange like Camprofile and spiral wound gaskets
Prevents over-compression of sealing element
Up to 1000 °C
What makes Fishbone gasket unique.
The Fishbone gasket has been designed to improve on all the design issues Spiral wound and Camprofile gaskets have, like unwinding and damaging of flanges.
The Fishbone gasket is machined out of a solid piece of metal and the flexible bones are energized by pressure, meaning the Fishbone gasket does not rely solely on axil pressure to create a seal because the bones will open when they are exposed to pressure ( activated by pressure ) allowing them to outperform all traditional gaskets without the help of disk springs. In extreme cases of thermal cycling Fishbone gasket can be used with disk springs to give you even more reliability and range for expansion and contraction.
Fishbone gasket product information
Technical Information on the Fishbone gasket
Fishbone Gasket is available in these types or styles
Fishbone gasket will seal just as well in a vacuum but we also offer reversed bone Fishbone with bones facing outwards or inwards and outwards in the IEX version specially designed to seal strong vacuums.
With IEX, Reverse bone or standard Fishbone you can seal the worst application in high pressure or strong vacuums with confidence that you have the best gasket on the market
This video will show you some of the technical advantages Fishbone Gasket has over Spiral wound and Kammprofile/Camprofile other than the flexible bones.
The question is why are you still using old technology like Spiral wound and Kammprofile/Camprofile when they are clearly faulty in there design ?
Fishbone Gasket is manufactured in these metals
Standard Metal Materials:
Non-Standard Metal Materials :
310S ( 2520)
Fishbone Gasket Filler Materials and temperature ranges:
Flexible Graphite -212 to 400 °c
Hi-temp Graphite -250 to 500 °c
PTFE -240 to 260 °c
ePTFE ( Expanded ) -240 to 260 °c
Mica -212 to 1000 °c
Fishbone flange gasket is available in all international standards:
EN 1514 EN 12560 ASME B16.20a ANSI B 16.21 API 601
BS 4865 BS 3381 JPI-7S-41 JIS B2404 DIN 2690~2692
We can all manufacture custom sizes
Standard sizes for Fishbone flange sizes:
NPS ( in) 1/2" ~ 60 " Class ( lbs): 150~2500
DN ( mm): 10~2000 PN ( bar): 2.5~400
Fishbone gasket can be made in in bespoke sizes also
Applications for Fishbone gasket :
FIshbone gasket can be used in sealing of almost any fluid or gas with the right combination of metal carrier and filler .
Typical applications for Fishbone gasket are:
Flange gasket for steam
Flange gasket for water hot or cold at high pressures
Flange gaskets in Chemical application
Flange gaskets in petroleum
Flange gasket for gases
Pipe flange gaskets
Heat exchanges end caps
Valves join gaskets
Reaction Vessel gaskets
Storage tank gaskets
Fishbone gasket Certification & tests
Fishbone gasket has been tested and complies and even exceeds all of the international test standards, some of the certificates and approvals are listed here . Fishbone outperforms all other gaskets on the market..