14.3 Wetted materials
DN 25 ball valve
Material version Liquid end, suc‐
tion/pressure con‐
nector
Seals* Valve balls Valve seats Integral relief
valve
PVT PVDF PTFE Glass PTFE PVDF / FPM or
EPDM
SST Stainless steel
1.4581
PTFE Stainless steel
1.4401
PTFE Stainless steel /
FPM or EPDM
DN 32 plate valves
Material version Liquid end, suc‐
tion/pressure con‐
nector
Seals* Valve plates /
valve springs
Valve seats Integral relief
valve
PPT PP PTFE Ceramic / hast. C
+ CTFE**
PTFE PVDF / FPM or
EPDM
PCT PVC PTFE Ceramic / hast. C
+ CTFE**
PTFE PVDF / FPM or
EPDM
PVT PVDF PTFE Ceramic / hast. C
+ CTFE**
PTFE PVDF / FPM or
EPDM
SST Stainless steel
1.4581
PTFE Stainless steel
1.4404 / Hast. C
PTFE Stainless steel /
FPM or EPDM
* Metering diaphragm is PTFE coated
** The valve spring is coated with CTFE (resistance similar to PTFE)
14.4 Ambient conditions
14.4.1
Ambient temperatures
Data Value Unit
Storage and transport temperature -10 ... +50 °C
Ambient temperature in operation (drive +
motor):
-10 ... +45 °C
14.4.2 Media temperatures
Data Value Unit
Max. temperature long-term at max. oper‐
ating pressure
60 °C
Max. temperature for 15 min at max. 2 bar 100 °C
Minimum temperature -10 °C
Data Value Unit
Max. temperature long-term at max. oper‐
ating pressure
45 °C
Max. temperature for 15 min at max. 2 bar 60 °C
Pump, compl.
PP liquid end
PC liquid end
Technical data
47
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