7 Start Up / Shut Down
Operation manual mzr-2961, mzr-4661
28
Technical data subject to change without prior notice!
Last update: April 2018
Nature of the handled liquid
Flushing cycle
[min]
Suitable flushing liquid
1
Oils, fats, plastifiers
15-20
isopropanol, ethanol, acetone, benzine
2
Solvents (polar + nonpolar)
5-10
isopropanol, ethanol
3
Other organic liquids
10-15
isopropanol , ethanol
4
Refrigerating and cooling agents
15-20
isopropanol, ethanol
5
Neutral watery solutions
20-25
isopropanol, ethanol
6
Basic solutions
25-30
DI-water (deionized water)
7
Organic acids
30-40
isopropanol, ethanol
8
Weak mineral acids
25-30
DI- water
9
Strong mineral acids
35-45
DI- water
10
Strong oxidizing liquids
35-45
DI- water
11
Paints, varnishes, adhesives
50-60
Not specified - for further information
please contact HNP Mikrosysteme.
table 9
Selection of the flushing liquid (solvent) and the duration of the flushing cycle depending on the delivered
liquid.
Warning
Please make sure that the pump components and particularly O-rings and
sealing are resistant to the employed flushing liquid (see table 10).
Shaft sealing
O-ring material
Flushing liquid
PTFE (Teflon
®
),
graphite-
reinforced
UHMWPE
FPM
(Viton
®
)
EPDM
FFPM
acetone
0
0
3
0
0
benzene
0
3
1
3
0
benzyl alcohol
0
-
0
2
0
benzine
0
0
0
3
0
butanol
0
-
1
0
0
dimethyl sulfoxide (DMSO)
0
0
3
0
0
ethanol
0
0
0
0
0
isopropanol
0
0
0
0
0
methanol
0
0
2
0
0
methylethylketone (MEK)
0
0
3
1
0
oil / fine mechanics oil
0
0
0
3
0
styrene
0
-
1
3
1
toluene
0
1
2
3
0
water
0
0
0
0
0
xylene
0
1
2
3
0
Legend:
0 ... good suitability 1 ... suitability 2 ... conditional suitability 3 ... labile - ... not specified
table 10
Resistance of the sealing materials depending on the flushing liquid (solvent)