Seal resistance for EPDM, FKM, HNBR, PTFE
Medium
Temperature
Sealing material (general operation temperature)
EPDM
-40...+135 °C *
(-40...275 °F)
FKM
-10...+200 °C *
(+14...+392 °F)
HNBR
-25...+140 °C *
(-13...+284 °F)
PTFE *
Stem diaphragm
Water
up to 80 °C (176 °F)
+
+
+
+
Steam
up to 135 °C (275°
F)
+
o
o
+
Steam, approx. 30
min
up to 150 °C (320
°F)
+
o
–
+
Steam, approx. 30
min
up to 160 °C (320
°F)
–
o
–
+
Fuels/hydrocarbons
–
+
+
+
Product with a fat
content of max.
35%
+
+
+
+
Product with a fat
content of more
than 35%
–
+
+
+
Oils
–
+
+
+
* Depending on the installation conditions
Seal resistance - TEFASEP gold
Medium
Temperature
Sealing material (general operation
temperature)
TEFASEP gold *
Alkalis up to 3%
up to 80 °C (176 °F)
+
Alkalis up to 5%
up to 40 °C (104° F)
+
Alkalis up to 5%
up to 80 °C (176 °F)
+
Alkalis more than 5%
+
Inorganic acids up to 3%
up to 80 °C (176 °F)
+
Inorganic acids up to 5%
up to 80 °C (176 °F)
+
Inorganic acids up to 5%
up to 100 °C (212 °F)
+
Water
up to 80 °C (176 °F)
+
Steam
up to 135 °C (275 °F)
+
Steam, approx. 30 min
up to 160 °C (320 °F)
+
Fuels/hydrocarbons
+
Product with a fat content of max. 35%
+
Product with a fat content of more than
35%
+
Oils
+
* Depending on the installation conditions
Technical data
Resistance of the sealing materials
430BAL013307EN_8
04.08.2022
25
Содержание D-tec D
Страница 66: ...Fig 39 Maintenance Assembling the valve 430BAL013307EN_8 66 04 08 2022...
Страница 69: ...Fig 41 Maintenance Assembling the valve 430BAL013307EN_8 04 08 2022 69...
Страница 85: ...Fig 55 Housing Parts list D tec double chamber valve type D DV 430BAL013307EN_8 04 08 2022 85...
Страница 91: ...Fig 58 hard seal Parts list D tec valve insert D DV SV NC NO 430BAL013307EN_8 04 08 2022 91...
Страница 95: ...15 Parts list lift actuator _LB DV Fig 59 Parts list lift actuator _LB DV 430BAL013307EN_8 04 08 2022 95...
Страница 99: ...Fig 61 Dimension sheet double chamber valve type D DV 430BAL013307EN_8 04 08 2022 99...
Страница 105: ...Appendix 430BAL013307EN_8 04 08 2022 105...
Страница 106: ......