TP40-160/2 Shaft Seals Manual

58
Pumped liquids
Shaft seals
Organic compounds
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
Benzene
(petroleum naphtha)
C
6
H
6
Max. temp. [°C]
Max. conc. [%]
Suitability – – – – – – – – – –
Comments
Explosion hazard; highly inflammable; toxic; insoluble in water; double shaft seal may be
required; flash point: –11°C; FFKM (Kalrez
®) recommended.
Butanol (butyl alcohol)
C
4
H
7
OH
Max. temp. [°C] 40 80 40 80 40 80
Max. conc. [%] 100 100 100 100 100 100
Suitability + + +++++ – – +++
Comments
Explosion hazard; highly inflammable; soluble in water; double shaft seal may be required;
flash point: +37°C.
Seal face needs to be SiC
G
.
Hexane
C
6
H
14
Max. temp. [°C] 20 20 20
Max. conc. [%] 100 100 100
Suitability + + –++–+– – –++
Comments
Explosion hazard; highly inflammable; insoluble in water; double shaft seal may be required;
flash point: –22°C.
Seal face needs to be SiC
G
.
Isopropyl alcohol
CH
3
CHOHCH
3
Max. temp. [°C] 70 80 70 80 70 80 70 80 70 80
Max. conc. [%] 100 100 100 100 100 100 100 100 100 100
Suitability + + + ++ + + + + + ++
Comments
Explosion hazard; highly inflammable; soluble in water; double shaft seal may be required;
flash point: +11.7°C.
Naphthalene
C
10
H
8
Max. temp. [°C] 80 80 80 80 80
Max. conc. [%] 100 100 100 100 100
Suitability – ++ – + – + – ++ – +
Comments Insoluble in water; inflammable; double shaft seal recommended: flash point:+ 79°C.
Propanol (propyl
alcohol)
CH
3
CH
2
CH
2
OH
Max. temp. [°C] 80 80 80 80 80 80 80 80 80 80
Max. conc. [%] 100 100 100 100 100 100 100 100 100 100
Suitability + + + ++ + + + + + ++
Comments
Explosion hazard; highly inflammable; soluble in water; double shaft seal may be required;
flash point: +22°C.
Triethanolamine
N(C
2
H
4
OH)
3
Max. temp. [°C] 60 60 60 60 60
Max. conc. [%] 10 10 10 10 10
Suitability ++ – + – + – ++ – + –
Comments Soluble in water.