Operating Manual
MG1/dw-00 page 11 / 20
en MG1/dw-00 / June 13, 2006 Rev. 10.1
Description and function
single seal
unbalanced
bi-directional
stationary seat (2)
o-ring (3)
rotating seal face (1.1)
elastomeric bellow (1.2)
cylindrical single spring (1.5)
no glued joints
materials of the sliding parts
replaceable
for media containing solids (e.g.
sewage applications)
rotating, torsion-free elastomeric
bellows serving as
! face housing
! secondary sealing element
! drive collar
torque transmission from the seal face by means of "L"-rings and a rotating,
cylindrical single spring
axial movability
d
w
: 10 … 12 mm ±0,5 mm
d
w
: 14 … 18 mm ±1,0 mm
d
w
: 20 … 26 mm ±1,5 mm
d
w
: 28 … 100 mm ±2,0 mm
Required space, connecting dimensions
The required mounting space for the mechanical seal is decisive for the design of the
housing parts by the machine manufacturer. The connecting dimensions have to be
checked by the machine manufacturer by means of the BURGMANN drawing before
mounting the mechanical seal.
Supply of M.S.
The mechanical seal has to be constantly wetted by liquid medium. The medium to
be sealed must not damage the M.S. neither chemically (e.g. corrosion,
embrittlement) nor physically (e.g. erosion, abrasion).
For a safe operation of the mechanical seal we recommend to apply at inboard the
most suitable type of circulation described in API 610 / 682. This measure protects
the seal cavity from deposition of solids.
To operate multiple seals special supply systems are required. Please contact
BURGMANN.
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