Table of sealing resistance / permitted operating temperature
Medium
Maximum operating
temperatures
Sealing materials
EPDM
FKM
HNBR
FFKM
Product with a fat content of more than 35%
–
+
+
+
Oils
–
+
+
+
Table sealing materials - temperature resistance
Sealing materials
General temperature resistance*
EPDM
-40...+135 °C
(-40...275 °F)
FKM
-10...+200 °C
(+14...+392 °F)
HNBR
-25...+140 °C
(-13...+284 °F)
FFKM
-10...+230 °C
(+14...+446 °F)
* The general resistance of the material does not correspond to the maximum operating temperature.
5.5
Pipe ends - General table of measurements
Hint!
Not every valve is available in every size. Particulars of available sizes
of valves see Chapter 5, Page 24.
Dimensions for Pipes in DN
Metric DN
Outside
diameter
Wall
thickness
Inside
diameter
Outside
diameter acc.
to DIN 11850
15
19
1.5
16
x
20
23
1.5
20
x
25
29
1.5
26
x
40
41
1.5
38
x
50
53
1.5
50
x
65
70
2.0
66
x
80
85
2.0
81
x
100
104
2.0
100
x
125
129
2.0
125
x
150
154
2.0
150
x
Technical data
Pipe ends - General table of measurements
430BAL008386EN_3
07.02.2022
27
Содержание VARIVENT DN 25
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