CobaSeal0 pages

Mechanical Seals
Compressor Seals · Barrier seals
CobaSeal
Features
Gas-lubricated
Bi-directional
Aerostatic lift-off
Ready-to-fit cartridge unit
Advantages
The revolutionary oil barrier / separation seal.
CobaSeal, the oil barrier/separation seal for Dry
Gas Seals, is a co-axial gas lubricated seal,
which eliminates all disadvantages of existing
systems such as labyrinths used currently in
the industry.
The seal is designed similarly to a gas seal,
consisting of a ductile rotating seat and a
stationary spring-loaded seal face. In contrast
to conventional mechanical seal systems, the
separation gas is led through the stationary
seal face into the middle of the sliding face by
means of axial bores. The separation gas is
separated into two leakage streams, towards
the inside and the outside diameter of the
sliding face. The coaxial seal is a dual system
which is integrated in one sealing stage.
The aerostatic lift-off results in a contact-free
operation without any wear. Innovative design
combined with state-of-the-art face material
features unbeatable low separation gas
consumption while ensuring reliable operation.
There are no restrictions whatsoever with
regards to “slow roll”, “turning gear” and “coast
down” operation.
Due to the stable sealing gap between rotating
seat and stationary seal face, a contact-free
operation is ensured even in case of equipment
upsets, e.g. vibrations.
Item Description
1 Seal face, stationary
2 Seat, rotating
3 Thrust ring
4 Spring
5 Shaft sleeve and seat retainer
6 Housing (adapted in size to the installation space)
7 Oil slinger ring
D Separation gas
13.09.2012 (c) EagleBurgmann
EagleBurgmann Germany
GmbH & Co. KG
Äußere Sauerlacher Straße 6-10
82515 Wolfratshausen /Germany
Phone +49 (8171) 23-0
Fax +49 (8171) 23-1214
info@eagleburgmann.com
www.eagleburgmann.com
All technical specifications are based on extensive tests and our many years of
experience. The diversity of possible applications means, however, that they can serve
only as guide values. We must be notified of the exact conditions of application
before we can provide any guarantee for a specific case. Subject to change.