TP80-80/4 Shaft Seals Manual

ManualsBrandsGrundfos ManualsCirculator PumpsTP80-80/4 Direct Coupled In-Line Circulator, 1-1/2 HP, BUBE Seal, Cast Iron, 115/208-230V, GF 80 Flange Mount

Table Of Contents

47

Pumped liquids

Shaft seals

Acids, 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

Salicylic acid

C

6

H

4

(OH)COOH

Max. temp. [°C] 80 80 80 80 80 80 80 80

Max. conc. [%] 5555 5555

Suitability +++++––++++

Comments Shaft seal with flush may be a good choice due to low solubility.

Sulphamic acid

NH

2

SO

3

H

Max. temp. [°C] 20 20

Max. conc. [%] 5 5

Suitability – ++ – + – – – – – –

Comments

Sulphuric acid

H

2

SO

4

Max. temp. [°C] 20 20 20 20

Max. conc. [%] 5555

Suitability ++++––––––

Comments

Sulphurous acid

H

2

SO

3

Max. temp. [°C] 60 60 20 20

Max. conc. [%] 6 6 2 2

Suitability + – + – – – ± – ± –

Comments