17.3 Viscosity
Tab. 28: The liquid ends are suitable for the following viscosity ranges:
Design Viscosity in mPas
Standard 0 ... 200
With valve springs 201 ... 500
With HV head 501 ... 3000*
Self-degassing (SEK) 0 ... 50
* Even significantly higher with correctly adjusted installation. Contact Technical Support in Heidelberg.
Tab. 29: General information on selection according to viscosity.
Viscosity in mPas Options Stroke rate (strokes/minute)
0 ... 200 No specific options required Any stroke rate.
201 ... 500 Valves fitted with springs HV1 mode: Stroke rate max. 160
strokes/minute.
501 ... 1000 Valves fitted with springs.
HV head recommended.
A positive flow is required.
Stroke length >75%.
HV 2 mode: Stroke rate max. 120
strokes/minute.
1001 ... 3000 Select an HV head.
Valves fitted with springs.
A positive flow is required.
Stroke length >75%.
HV 3 mode: Stroke rate max. 80
strokes/minute.
> 3000 Contact Customer Service to select a suitable pump.
17.4 Material specifications
Design Dosing head Valves Seals Balls
PPT Polypropylene PVDF PTFE Ceramic
NPT Clear acrylic PVDF PTFE Ceramic
PVT PVDF PVDF PTFE Ceramic
PPE Polypropylene EPDM EPDM Ceramic
PPB Polypropylene FKM FKM Ceramic
NPE Clear acrylic EPDM EPDM Ceramic
NPB Clear acrylic FKM FKM Ceramic
TTT PTFE PTFE PTFE Ceramic
SST Stainless steel
1.4404
Stainless steel
1.4404/1.4571
PTFE Ceramic
Diaphragm: with PTFE coating.
FKM = fluorine rubber.
Standard liquid ends
Technical data
118
DosingPump.ir
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