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 resistance 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 defined 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 resistance
●
o = reduced 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
Summary of Contents for VARIVENT X R Series
Page 9: ...1 4 Declarations of conformity 1 4 Declarations of conformity 9 104...
Page 12: ...12 104 1 4 Declarations of conformity 0000000881 001 EN GB...
Page 40: ...40 104 5 5 Checking the pneumatic connection 0000000881 001 EN GB...
Page 44: ...44 104 7 3 Shutdown 0000000881 001 EN GB...
Page 88: ...88 104 9 7 Maintenance 0000000881 001 EN GB...
Page 90: ...90 104 9 7 Maintenance 0000000881 001 EN GB...
Page 98: ...98 104 12 2 Spare parts lists 0000000881 001 EN GB...
Page 103: ...13 2 List of abbreviations 103 104...
