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Delta gaskets0 pages
Delta gaskets
Because of their geometric shape, delta gaskets require a
higher level of precision from the seal grooves. As a direct
result of the manufacturing process and its resulting precision, delta gaskets are only used for high-pressure autoclaves and high-pressure connections up to a maximum of
2000 mm, whereby the majority are less than 1000 mm. The
following illustration shows the application as a cover gasket.
is only slightly higher than the sum of the seal groove depths,
therefore if the grooves are reworked at any stage a new
gasket with greater height will be required.
We produce delta gaskets according to your documentation,
from all usual materials. See also the section “Materials
commonly used”.
Gasket profiles
Profile
Cross-section
Material
k0
[mm]
Steel
-
k1
RZ*
[mm] [µm]
1,6
A15
-
bis
3,2
* Recommended maximum roughness of the flange
surfaces.
07
Due to its splined profile, an excellent initial seal is created
by the partial plastic deformation of the opposing peaks of
the gasket when bolt pre-tensioning force is applied. The
radially self-sealing effect arises due to the high internal
pressure resulting from the elastic extension of the gasket.
Delta gaskets are not suitable for dealing with intermittent
pressures. Additional sealing layers are not practical or necessary. Delta gaskets are generally produced from seamless rings. The sealing material should be softer than the
flange material if at all possible. Care should be taken to
ensure adequate creep strength in the material. The gasket
Kempchen Dichtungstechnik GmbH · Tel. +49 (0)208 8482 0 · Fax. +49 (0)208 8482 285 · info@kempchen.de · www.kempchen.de
Delta gaskets
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