Grundfos DDC Data Booklet

Pumped liquids
56
SMART Digital S
9
9. Pumped liquids
The resistance table below is intended as a general
guide for material resistance (at room temperature),
and does not replace testing of the chemicals and
pump materials under specific working conditions.
The data shown are based on information from various
sources available, but many factors (purity,
temperature, abrasive particles, etc.) may affect the
chemical resistance of a given material.
Note: Some of the liquids in this table may be toxic,
corrosive or hazardous. Please be careful when
handling these liquids.
Further information:
http://product-selection.grundfos.com/liquids.html
Pumped liquid (20 °C)
Material
Dosing head Gasket Ball
PE (Accessories)
Description
Chemical
formula
Concentration
%
PP PVDF SS 1.4401 PVC FKM EPDM PTFE Ceramic
Acetic acid CH
3
COOH
25
●●●●
-
●●●●
60
●●●●
-
●●●●
85
●●❍
---
●●
-
Aluminium chloride AlCl
3
40
●●
-
●●●●●●
Aluminium sulphate Al
2
(SO
4
)
3
60
●●●●●●●●●
Ammonia, aqueous NH
4
OH 28
●
-
●●
-
●●●●
Calcium hydroxide ★
7
Ca(OH)
2
●●●●●●●●●
Calcium hypochlorite Ca(OCl)
2
20
❍●
-
●●●●●●
Chromic acid H
2
CrO
4
10
●●●●●●●●●
30 -
●
-
●●❍●●●
50 -
●
-
●●
-
●●●
Copper sulphate CuSO
4
30
●●●●●●●●●
Ferric chloride ★
3
FeCl
3
60
●●
-
●●●●●●
Ferric sulphate ★
3
Fe
2
(SO
4
)
3
60
●●❍●●●●●●
Ferrous chloride FeCl
2
40
●●
-
●●●●●●
Ferrous sulphate FeSO
4
50
●●●●●●●●●
Fluosilicic acid H
2
SiF
6
40
●●❍●
-
❍● ● ●
Hydrochloric acid HCl
< 25
●●
-
●●●●●●
25-37
●●
-
●●❍●●●
Hydrogen peroxide H
2
O
2
30
●●●●●●●●●
Nitric acid HNO
3
30
●●●●●●●●●
40
❍● ● ● ●
-
●●●
70 -
●●
-
●
-
●●❍
Peracetic acid CH
3
COOOH 5-15
❍●❍❍
--
●●❍
Potassium hydroxide KOH 50
●
-
●●
-
●●●●
Potassium permanganate KMnO
4
10
●●●●❍●●●●
Sodium chlorate NaClO
3
30
●●●●●●●●●
Sodium chloride NaCl 30
●●
-
●●●●●●
Sodium chlorite NaClO
2
20
●●
-
❍●●●●●
Sodium hydroxide NaOH
30
●●●●❍●●●●
50
●●●●
-
●●●●
Sodium hypochlorite NaClO 12-15 -
●
-
●●●●●●
Sodium sulphide Na
2
S30
●●●●●●●●●
Sodium sulphite Na
2
SO
3
20
●●●●●●●●●
Sodium thiosulfate Na
2
S
2
O
3
10
●●●●●●●●●
Sulphurous acid H
2
SO
3
6
●●●●●●●●●
Sulphuric acid ★
4
H
2
SO
4
< 80
●●
-
●●❍●●●
80-96
❍●
-
●●
-
●●
-
98 -
●●
-
❍
-
●●
-
● Resistant
★
3
Risk of crystallisation.
❍ Limited resistance
★
4
Reacts violently with water and generates much heat.
(Pump should be absolutely dry before dosing sulphuric acid.)
- Not resistant
★
7
Once the pump is stopped, calcium hydroxide will sediment rapidly.

Grundfos DDC Specifications

General

Brand	Grundfos
Model	DDC
Category	Water Pump
Language	English