TP40-160/2 Shaft Seals Manual

57
Pumped liquids
Shaft seals
Oxidants
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
Hydrogen peroxide
H
2
O
2
Max. temp. [°C] 20 20 20 20 20 20
Max. conc. [%] 30 30 30 30 30 30
Suitability ++ ++ ++ ++ ++ ++ – – – –
Comments Double shaft seal recommended for high concentration.
Sodium hypochlorite
(bleaching liquid)
NaClO
Max. temp. [°C] 20 20
Max. conc. [%] 1 1
Suitability ± ± – – – – – – – –
Comments Risk of pitting on stainless steel parts.