TP80-80/4 Shaft Seals Manual

56
Pumped liquids
Shaft seals
Solvents
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
Acetone
(dimethyl ketone)
CH
3
COCH
3
Max. temp. [°C] 60 60 60
Max. conc. [%] 100 100 100
Suitability – – ++ – ++ – – – ++ –
Comments
Explosion hazard; highly inflammable; soluble in water; double shaft seal may be required;
flash point: –18°C.
Perchloroethylene
(tetrachloroethene)
C
2
Cl
4
Max. temp. [°C] 70 70 70 70 70
Max. conc. [%]
Suitability – + – ++ – + – + – ++
Comments
Insoluble in water; double shaft seal recommended (highly toxic); avoid contact with
aluminium and copper; risk of corrosion of stainless steel parts if liquid contains water.
Toluene
(methylbenzene)
C
6
H
5
CH
3
Max. temp. [°C]
Max. conc. [%]
Suitability – – – – – – – – – –
Comments
Explosion hazard; highly inflammable; insoluble in water; double shaft seal may be required;
flash point: +4.4°C; FFKM (Kalrez
®) required.
Trichloroethylene
(trichlorethene)
C
2
HCl
3
Max. temp. [°C] 20 20 20 20 20
Max. conc. [%]
Suitability – + – ++ – + – + – ++
Comments
Insoluble in water; double shaft seal recommended (highly toxic); risk of corrosion of stainless
steel parts if the liquid contains water.
White spirit
Max. temp. [°C] 60 60 60
Max. conc. [%]
Suitability – – – ++ – + – – – ++
Comments
Explosion hazard; inflammable; insoluble in water; double shaft seal may be required; flash
point: +41°C.
Xylene
(dimethylbenzene)
C
6
H
4
(CH
3
)
2
Max. temp. [°C]
Max. conc. [%]
Suitability – – – – – – – – – –
Comments
Explosion hazard; highly inflammable; insoluble in water; double shaft seal may be required
(toxic); flash point: +29°C; FFKM (Kalrez
®) required.