Weights valve type X_R
Size Weight [kg]
DN 25 9
DN 40 13
DN 50 14
DN 65 24
DN 80 25
DN 100 34
OD 1" 9
OD 1.5" 13
OD 2" 13
OD 2.5" 23
OD 3" 24
OD 4" 33
3.2.3 Resistance of the sealing materials
The r
esistance and permitted operating temperature of the sealing materials depend on
the type and temperature of the medium conveyed. The exposure time can adversely
affect the service life of the seals. The sealing materials comply with the regulations of
FDA 21 CFR 177.2600 or FDA 21 CFR 177.1550.
The maximum operating temperature is dened by the sealing type and its mechanical
load.
Due to the versatile conditions of use (e.g. usage duration, switching frequency, type
and temperature of product and cleaning agents as well as usage environment), GEA
Tuchenhagen recommends that the user carries out resistance tests.
Resistance:
●
+ = good r
esistance
●
o = r
educed resistance
●
– = no resistance
Seal resistance / permissible application temperature of the seal materials
Medium Maximum operating temper-
atures
EPDM FKM HNBR
Alkalis up to 3% up to 80 °C (176°F) + o +
Alkalis up to 5% up to 40 °C (104°F) + o o
Alkalis more than 5% up to 80 °C (176°F) + – -
Alkalis more than 5% o – -
30 / 104 - 3.2 Technical data
0000000881 - 001 - EN-GB
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