TPE80-240/2 Shaft Seals Manual

50
Pumped liquids
Shaft seals
Salts, continued
Legend
++ = Best solution
+ = Suitable
± = Suitable under certain conditions
– = Not suitable
Liquid
Shaft seal (EN 12756)
Rotating face:
Stationary seat:
Secondary seal:
Spring:
Other parts:
Q
Q
E
G
G
Q
Q
V
G
G
B
Q
E
G
G
B
Q
V
G
G
B
V
E
G
G
B
V
V
G
G
U
U
E
G
G
U
U
V
G
G
B
U
E
G
G
B
U
V
G
G
Sodium nitrite
NaNO
2
Max. temp. [°C] 90 90 90 90 90 90 90 90 90 90
Max. conc. [%] 30 30 30 30 30 30 30 30 30 30
Suitability ++ ++ + + + + ++ ++ + +
Comments
Sodium phosphate
Na
3
PO
4
Max. temp. [°C] 80 80 80 80
Max. conc. [%] 20 20 20 20
Suitability ++ + – – – – ++ + – –
Comments Shaft seal with flush/double shaft seal may be required.
Sodium sulphate
Na
2
SO
4
Max. temp. [°C] 80 80 80 80 80 80 80 80
Max. conc. [%] 30 30 30 30 30 30 30 30
Suitability ++ ++ + + – – ++ ++ + +
Comments
Sodium sulphite
Na
2
SO
3
Max. temp. [°C] 80 80 80 80 80 80 80 80 80 80
Max. conc. [%] 20 20 20 20 20 20 20 20 20 20
Suitability ++ ++ + + + + ++ ++ + +
Comments