1.
process the metal flat gasket to teeth-shaped metal gasket of 90°contained angle. Internal and external positioning ring. To protect flange and ensure effective sealing, the surface sealing layer can be adhibited. The materials may be PTEE, graphite, and specially-processed silver and aluminum.

2. choosing materials
Soft steel, copper, silver, stainless steel, chrome steel, Monel alloy steel, alloy aluminum and other metal slabs or sticks are processed to be ring teeth-shaped surface after mechanical processing.
3. relevant data
Maximum operation pressure: 250Kg/cm3
Minimum preloaded specific pressure: y＞Kg/cm3700 Kg/m3
Gasket Coefficient : m ＞4.25
Maximum processing dimension: 3000MM

4. application range
Steam dynamo of power plant (or nuclear power plant), heat exchanger gasket or fully-sealing gasket of shipping dynamo and manhole gasket can be used in the high temperature and high pressure of chemical industry.

5. production reference (mm)
Outer diameter of gasket gasket thickness T chimb thickness t distance between tooth peak P

BELOW 100 3.0 2.0 1.0
100—250 4.5 3.0 1.0
250—630 6.0 4.5 1.0
630--1600 8.0 6.0 1.0

6. Others:
the contact with other sealing surfaces is linear contact of many concentric circles, so very high pressing force is not needed to ensure good sealing, but the roughness of the sealing surface should be over Ra1.6um.