Self-Bleeding Liquid End; Viscosity; Material Data - ProMinent Beta BT4b Operating Instructions Manual

Technical data
15.2.2

Self-Bleeding Liquid End

15.3

Viscosity

15.4

Material Data

Standard liquid ends
48
* - at max. stroke length and max. operating pressure for all material
versions
** - at constant conditions and min. 30 % stroke length
As the self-bleeding liquid end is used with outgassing media and when
operating with air bubbles, no dosing accuracy or reproducibility can be
provided.
The recommended minimum stroke length with self-bleeding dosing
pumps is 50 %.
The liquid ends are suitable for the following viscosity ranges:
Version Range
standard 0 ... 200
With valve springs 200 ... 500
Self-bleeding (SEK) 0 ... 50
HV (highly viscous) 500 ... 3000*
* Only when the installation is correctly adjusted
Version Dosing head Suction/Dis‐
PPE Polypropy‐
lene
PPB Polypropy‐
lene
PPT Polypropy‐
lene
NPE Acrylic glass
NPB Acrylic glass
NPT Acrylic glass
PVT PVDF
TTT PTFE with
carbon
SST Stainless
steel 1.4404
Only the self-bleeding version in PPE, PPB, NPE and NPB material
models with a valve spring made of hastealloy C and a valve insert made
of PVDF. Diaphragm with a PTFE coating.
FPM = fluororubber
Unit
mPas
mPas
mPas
mPas
Seals
charge con‐
nector
Polypropy‐ EPDM
lene
Polypropy‐ FPM
lene
PVDF PTFE
PVC EPDM
PVC FPM
PVDF PTFE
PVDF PTFE
PTFE with PTFE
carbon
Stainless PTFE
steel 1.4404
Valve balls
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic