EAGLEBURGMANN
34
Rubber-steel gaskets
Features
Rubber-steel gasket for load bearing
connections. Metal support ring completely
jacketed with rubber gives added strength
while ensuring perfect sealing at lower bolt
loads for large bore flanges.
Features
Replaceable EPDM sealing lip, mounted on
metal supporting ring which performs both
a centering and a load-restricting function.
It absorbs the tightening forces necessary
for high pressures while protecting the
rubber seal from excessive compression.
With coated flanges we recommend
selecting an outside diameter of coating
that permits the sealing lip on the
atmosphere side to lie within the area
of the steel. If necessary, please discuss
exact sizes with EagleBurgmann.
Advantages
• The metal core increases the stability of
the gasket and results in better blow-out
safety
• Due to the spherical elastomer body the
precompression can be reduced and still
give better sealabilty
• This gasket can also be used for fragile
components like plastic flanges
Advantages
• The supporting ring does not come
into contact with the medium. Uniform
distribution of stresses is guaranteed by
special sealing lip geometry combined
with elastomer of the highest quality
• The permissible contact pressures
and transverse loads, which are a vital
factor in soft rubberized flanges, are not
exceeded
• For flange connections with flat faces in
all areas of industry, e.g. general piping,
process equipment and pipe flanges
made of plastics and glass, also rubber-
coated steel flanges, waste exhaust
treatment plants with rubber-coated
flanges and tubes
Operating range
Pressure: p = 25 bar
Temperature:
t = –30 °C ... +120 °C (EPDM)
t = –25 °C ... +70 °C (NBR)
t = –20 °C ... +200 °C (FPM)
Operating range
Pressure: p = 64 bar
Temperature: t = temperature resistance
EPDM
Sustained operation: –30 °C ... +130 °C,
a few hours: –30 °C ... +150 °C,
a few minutes: –30 °C ... +200 °C
Forms of supply
Complete seal with support ring made of
stainless steel 37.
Sizes acc. to EN 1514-1 or EN 12560-1.
Forms of supply
Complete seal with supporting ring made
of St 37.
Other ring materials and elastomeric
materials available.
Notes
Other ring materials and elastomeric
materials available.
Notes
制造:
up to DN 800 or 32" the sealing lips are
manufactured by injection molding. The
更高的维度al accuracy achieved
by injection molding makes it superior
to the frequently applied method of
production by displacement with an open
compression mold. For diameters >DN 800
the sealing lips are extruded and their
joints vulcanized to form the sizes needed
for installation. Recommended surface
roughness Rz ≤100 μm.
Generally: the smoother the surface, the
更高的the achievable tightness.
Sealing characteristics (N/mm
2
)
q
vu
= 2
q
vo
= 10
m = 1.3
Load values (q)
Elastomer gasket:
The surface load with
the flange in locked position is
q
max.
= approx. 10 N/mm
2
at room temp.
q
max.
= approx. 6 N/mm
2
at 100 °C
Sealing face requirements
Recommended surface roughness
R
Z
= ≤100 μm. As a basic rule: The finer
the surface, the tighter the seal.
材料
Sealing ring EPDM metal supporting
ring (stainless steel 37 galvanized and
chromated)
Recommended applications
• Power plant industry
• Water and waste water industry
• Building services industry
• Flange connections
• Pipe connections
Recommended applications
• Power plant technology
• Water and waste water technology
• Building services industry
• Flange connections
• Pipe connections
KH rubber-steel gasket 9107/KH
KN rubber-steel gasket 9107/KN
Surface pressure (Mpa)
10
8
6
4
2
Distribution of contact forces with an
EagleBurgmann 9107/KN gasket in a non-load
bearing, rubberized flange connection.