|
Chemical inertness
Chemical resistance
Vitrified clay pipes and fittings are immune to attack by all alkalis or acids contained in waste water and ground water or in the earth, with the exception of hydrofluoric acid.
Physical properties
The most important properties which might be required for calculation purposes are listed in the following table:
| Specific weight |
kN / m3 |
22 |
| Bending tensile strength |
N / nm2 |
15 - 40 |
| Compression strength |
N / nm2 |
100 - 200 |
| Tensile strength |
N / nm2 |
10 - 20 |
| Hardness to "Mohs" |
|
>7 |
| Modulus of elasticity |
N / nm2 |
>50.000 |
| Coefficient of thermal expansion |
1 / k |
> 5 * 10-6 |
| Thermal conductivity |
W / m*k |
>1,2 |
| Key table chemical resistance of Keramo-Steinzeug materials |
| Column 1 |
Tested liquid |
| Column 2 |
Jointing material
- rubber joint: L-DN 100mm up to 200mm
- polyurethane joint: K-DN 200mm up to 1400mm |
| Column 3 |
Temperature (rtO= room temperature between 18OC and 25O C) |
| Column 4 |
- concentrated solution in water (%)
- pure = concentrated trade solution |
| Column 5 |
Measured and calculated pH-value |
| Column 6 |
Test period (w=weeks, m- months, y=years) |
| Column 7 |
Pieces
- pieces = tested on joint pieces
- assembly = tested on connections |
| Column 8 |
Evaluation
- testing on pieces of the jointing material:
1 = excellent resistance
2 = sufficient resistance
3 = relatively resistance
4 = not resistent
- tests on complete joints and tightness test afterwards:
A = tight, no damage
B = tight, slight damage
C = doubtful, damage
D = leak, damage |
| Product |
joint |
Temp. |
Concen-tration |
Ph |
Period |
Pieces or assembly or sample |
Result |
| Aceton |
L |
rt° |
5% |
|
2w |
pieces |
1 |
| |
|
rt° |
pure |
|
1w |
pieces |
4 |
| |
|
|
|
|
|
|
|
| |
K |
rt° |
5% |
|
2w |
pieces |
1 |
| |
|
rt° |
pure |
|
1w |
pieces |
4 |
| |
S |
|
pure |
|
|
sample |
4 |
| Accumulator acis |
S |
rt |
pure |
|
|
sample |
1 |
| Ajax toilet |
L |
rt° |
10,00 % |
|
1w |
pieces |
1 |
| |
K |
rt° |
10,00% |
|
1w |
pieces |
1 |
| Ammonium- |
L |
rt° |
20,00% |
11,8 |
2w |
pieces |
1 |
| hydroxide |
L |
40 |
10,00% |
11,6 |
1w |
assembly |
A |
| |
|
70 |
10,00% |
11,6 |
1w |
assembly |
B |
| |
K |
rt° |
20,00% |
11,8 |
2w |
pieces |
1 |
| |
|
40° |
10,00% |
11,6 |
1w |
assembly |
A |
| |
|
70° |
10,00% |
11,6 |
1w |
assembly |
B |
| |
S |
rt° |
pure |
|
|
sample |
1 |
| Ammonia- |
|
|
|
|
|
|
|
| solution |
S |
rt° |
|
|
|
sample |
1 |
| Acetic acid |
L |
rt° |
15,00% |
2,2 |
1w |
pieces |
1 |
| |
L |
rt° |
20,00% |
2,1 |
3w |
pieces |
2 |
| |
L |
rt° |
3,00% |
2,5 |
1m |
pieces |
1 |
| |
K |
rt° |
20,00% |
2,1 |
3w |
pieces |
2 |
| |
K |
rt° |
3,00% |
2,5 |
1m |
pieces |
1 |
| |
S |
rt° |
25,00% |
|
|
sample |
2 |
| Brake oil |
L |
rt° |
pure |
|
2w |
pieces |
1 |
| |
K |
rt° |
pure |
|
2w |
pieces |
1 |
| Butyric acid |
L |
rt° |
10,00% |
1,5 |
1w |
pieces |
1 |
| |
L |
rt° |
|
2,9 |
2m |
pieces |
1 |
| |
K |
rt° |
|
2,9 |
0,5m |
pieces |
1 |
| |
S |
rt° |
pure |
|
|
|
2 |
| Calcium- |
L |
rt° |
saturated |
|
1w |
pieces |
1 |
| carbonate |
K |
rt° |
saturated |
|
1w |
pieces |
1 |
| |
S |
|
pure |
|
|
sample |
1 |
| Calcium chlorid |
L |
rt° |
saturated |
|
1w |
pieces |
1 |
| |
K |
rt° |
saturated |
|
1w |
pieces |
1 |
| Citric acid |
L |
rt° |
10,00% |
1,8 |
1w |
assembly |
A |
| |
K |
rt° |
10,00% |
1,8 |
1w |
pieces |
1 |
| |
|
rt° |
10,00% |
1,8 |
1w |
assembly |
A |
| |
S |
rt° |
pure |
|
|
sample |
1 |
| Copper-chlorid |
L |
rt° |
saturated |
|
3w |
pieces |
1 |
| |
L |
70° |
saturated |
|
3w |
pieces |
1 |
| |
K |
rt° |
saturated |
|
3w |
pieces |
1 |
| |
K |
70° |
saturated |
|
3w |
pieces |
1 |
| |
S |
rt° |
pure |
|
|
sample |
1 |
| Diesel |
L |
rt° |
pure |
|
4m |
pieces |
2 |
| |
|
rt° |
pure |
|
4m |
pieces |
B |
| |
|
rt° |
pure |
|
1w |
pieces |
A |
| |
K |
rt° |
pure |
|
4m |
pieces |
1 |
| |
|
rt° |
pure |
|
4m |
assembly |
A |
| |
|
rt° |
pure |
|
1w |
pieces |
A |
| EDTA |
L |
rt° |
saturated |
|
2w |
pieces |
1 |
| |
K |
rt° |
saturated |
|
2w |
pieces |
1 |
| Engine oil |
L |
rt° |
pure |
|
4m |
pieces |
1 |
| |
K |
rt° |
pure |
|
4m |
pieces |
1 |
| Formaline |
K |
rt° |
0,25% |
|
1w |
assembly |
A |
| Formic acid |
L |
rt° |
20,00% |
1,5 |
1w |
pieces |
1 |
| |
L |
rt° |
10,00% |
1,7 |
1w |
assembly |
A |
| |
L |
rt° |
38,00% |
0,7 |
1m |
pieces |
1 |
| |
K |
rt° |
10,00% |
1,7 |
1w |
assembly |
A |
| |
K |
rt° |
|
3,7 |
4m |
pieces |
1 |
| |
S |
rt° |
pure |
|
|
sample |
2 |
| Galactose |
L |
rt° |
2,00% |
|
1w |
pieces |
1 |
| |
K |
rt° |
2,00% |
|
1w |
pieces |
1 |
| Glycerine |
L |
rt° |
pure |
|
1w |
pieces |
1 |
| |
K |
rt° |
pure |
|
1w |
pieces |
1 |
| |
S |
|
pure |
|
|
sample |
1 |
| Hydrochloric acid |
L |
rt° |
38,00% |
0,00 |
1w |
pieces |
1 |
| |
L |
70° |
20,00% |
0,00 |
1w |
pieces |
1 |
| |
L |
rt° |
6,50% |
0,1 |
1w |
assembly |
A |
| |
L |
70° |
6,50% |
0,1 |
1w |
assembly |
A |
| |
L |
rt° |
7,00% |
<0,2 |
4m |
pieces |
1 |
| |
K |
rt° |
10,00% |
0 |
1w |
pieces |
1 |
| |
K |
rt° |
6,50% |
0,1 |
1w |
assembly |
A |
| |
K |
rt° |
4,00% |
0,4 |
2m |
pieces |
1 |
| |
S |
rt° |
30,00% |
|
|
sample |
1 |
| Kerosene |
L |
rt° |
pure |
|
1w |
assembly |
B |
| |
K |
rt° |
pure |
|
1w |
pieces |
1 |
| Lactic acid |
L |
rt° |
10,00% |
2,00 |
1w |
assembly |
A |
| |
L |
70° |
10,00% |
2,00 |
1w |
assembly |
A |
| |
L |
rt° |
90,00% |
<0,1 |
9m |
pieces |
1 |
| |
K |
rt° |
10,00% |
2,00 |
1w |
assembly |
A |
| |
|
70° |
10,00% |
2,00 |
1w |
assembly |
B |
| |
|
rt° |
1% |
2,3 |
2m |
pieces |
1 |
| |
S |
rt° |
pure |
|
|
sample |
1 |
| Methylene chloride |
L |
rt° |
0,50% |
|
1w |
pieces |
1 |
| |
K |
rt° |
0,50% |
|
1w |
pieces |
1 |
| Nitric acid |
L |
rt° |
10,00% |
0,00 |
1w |
pieces |
1 |
| |
L |
90° |
2,50% |
0,4 |
1w |
assembly |
A |
| |
L |
rt° |
6,10% |
1,25 |
2m |
pieces |
1 |
| |
K |
rt° |
6,10% |
1,25 |
2 |
pieces |
1 |
| |
K |
90° |
2,50% |
0,4 |
1w |
assembly |
A |
| |
S |
80° |
30,00% |
|
|
sample |
2 |
| Oxalic acid |
L |
rt° |
20,00% |
1,8 |
1w |
pieces |
1 |
| |
K |
rt° |
20,00% |
1,8 |
1w |
pieces |
1 |
| |
S |
|
pure |
|
|
sample |
1 |
| Petrol |
L |
rt° |
pure |
|
4m |
assembly |
A/B |
| Phosphoric acid |
L |
rt° |
50% |
0,00 |
1w |
pieces |
1 |
| |
L |
70° |
50,00% |
0,00 |
1w |
pieces |
2 |
| |
L |
rt° |
58,00% |
0,00 |
6m |
pieces |
1 |
| |
K |
rt° |
10,00% |
0,6 |
1w |
pieces |
1 |
| |
K |
rt° |
0,20% |
2 |
1w |
assembly |
A |
| |
K |
rt° |
|
0,8 |
4m |
pieces |
1 |
| |
S |
rt° |
45% |
|
|
sample |
1 |
| Sodium Hydroxide |
L |
rt° |
32,00% |
14,00 |
1w |
pieces |
1 |
| |
L |
70° |
32,00% |
14,00 |
1w |
pieces |
1 |
| |
L |
70° |
3,00% |
12,8 |
1w |
assembly |
A |
| |
L |
rt° |
30% |
14,00 |
7m |
pieces |
1 |
| |
K |
70° |
6,00% |
12,8 |
1w |
pieces |
1 |
| |
K |
70° |
3,00% |
12,8 |
1w |
assembly |
A |
| |
K |
rt° |
30,00% |
14 |
7m |
pieces |
1 |
| |
S |
rt° |
25,00% |
|
|
sample |
1 |
| |
L |
rt° |
pure |
|
3w |
pieces |
1 |
| |
K |
rt° |
pure |
|
3w |
pieces |
1 |
| |
K |
rt° |
1,0 mol/l |
14 |
1w |
assembly |
A |
| Starch solution |
K |
rt° |
10,00% |
|
1w |
pieces |
1 |
| |
|
70° |
10,00% |
|
1w |
pieces |
1 |
| Sulfuric acid |
L |
rt° |
50,00% |
0,00 |
1w |
pieces |
1 |
| |
L |
70° |
10,00% |
0,00 |
1w |
pieces |
1 |
| |
L |
rt° |
25,00% |
0,00 |
1w |
assembly |
A |
| |
L |
rt° |
9,25% |
0,20 |
6m |
pieces |
1 |
| |
K |
70° |
10,00% |
0,00 |
1w |
pieces |
1 |
| |
K |
rt° |
5,00% |
0,6 |
4m |
pieces |
1 |
| |
K |
rt° |
0,5 mol/l |
0,00 |
1w |
assembly |
A |
| |
K |
rt° |
fuming |
|
2w |
assembly |
A |
| |
K |
rt° |
68% |
|
1 year |
assembly |
A |
| |
S |
rt° |
50% |
|
|
sample |
1 |
| |
L |
70° |
10,00% |
2,35 |
1w |
pieces |
1 |
| |
K |
rt° |
20,00% |
1,8 |
1w |
pieces |
1 |
| Tetra-chlorethylen |
L |
rt° |
5,00% |
|
2w |
pieces |
1 |
| |
K |
rt° |
5,00% |
|
2w |
pieces |
1 |
| Tri-chlorethylen |
L |
rt° |
5,00% |
|
2w |
pieces |
1 |
| |
K |
rt° |
5,00% |
|
2w |
pieces |
1 |
| Xylentoluen |
K |
rt° |
5,00% |
|
1w |
assembly |
A |
|
