Technical Data
3A0411A
41
Fluid Temperature Range
* The maximum temperature listed is based on the ATEX standard for T4 temperature classification. If you are
operating in a non-explosive environment, FKM fluoroelastomer’s maximum fluid temperature in aluminum pumps is 320°F
(160°C).
NOTICE
Temperature limits are based on mechanical stress only. Certain chemicals will further limit the fluid operating tem-
perature range. Stay within the temperature range of the most-restricted wetted component. Operating at a fluid
temperature that is too high or too low for the components of your pump may cause equipment damage.
Diaphragm/Ball/Seat Material
Fluid Temperature Range
Aluminum Pumps
Polypropylene Pumps
Acetal
10° to 180°F -12° to 82°C 32° to 150°F 0° to 66°C
Buna-N
10° to 180°F -12° to 82°C 32° to 150°F 0° to 66°C
FKM Fluoroelastomer*
-40° to 275°F -40° to 135°C 32° to 150°F 0° to 66°C
Geolast
®
-40° to 150°F -40° to 66°C 32° to 150°F 0° to 66°C
Polychloroprene overmolded diaphragm
or Polychloroprene check balls
0° to 180°F
-18° to 82°C 32° to 150°F 0° to 66°C
Polypropylene
32° to 150°F
0° to 66°C
32° to 150°F 0° to 66°C
PTFE overmolded diaphragm
40° to 180°F
4° to 82°C
40° to 150°F 4° to 66°C
PTFE check balls
40° to 220°F
4° to 104°C 40° to 150°F 4° to 66°C
Santoprene
®
or two-piece PTFE/Santo-
prene diaphragm
-40° to 180°F -40° to 82°C 32° to 150°F 0° to 66°C
TPE
-20° to 150°F -29° to 66°C 32° to 150°F 0° to 66°C
