Volzhsky,
Volgograd region, K. Nechaeva Street,
6 "b" Volzhsky Chemical Complex
E-mail: vh1999@mail.ru

Asbestos gland packing AFT

AFT (impregnated with a fluoroplastic suspension with talc) is an elastic cord of square or rectangular cross-section, woven of asbestos thread, impregnated with a suspension of fluoroplastic with talc.

Application:
AFT is used in stuffing box seals: fittings working with liquefied gases (oxygen, nitrogen, etc.) and organic products (gasoline, benzene, toluene, acetone, furan, tetrahydrofuran, etc.) at pressure of 150 MPa and temperature from - 200 to +300°С; ethylene -- at pressure of 150 MPa and temperatures up to +250°С, at sliding speed of up to 2 m/s; designed for pumps operating with organic, acidic and alkaline environs, ammonia at pressure and temperature for centrifugal pumps 3 MPa and + 300°С, for piston pumps - 34 MPa and +250°С, at sliding speed - up to 15 and 2 m/s, respectively; used in stuffing box seals of centrifugal pumps pumping sea water at a pressure of 4.5 MPa and temperatures from -2 to +50°C, at sliding speed of up to 10 m/s.

Characteristics:

Density, g/cm3: 1.2

pH of working environment: 1-14

Working environ

Sealing unit

Operating temp,  °C

Pressure, MPa

Sliding speed, m/s

Liquefied gases, organic products

Fitting

from -200 to +300

25

2

Organic products, ammonia, alkaline environs

Centrifugal pumps

+300

3

15

Organic products, ammonia, alkaline environs

Piston pumps

+250

34

2

Seawater

Centrifugal pumps

from -2 to +50

4,5

10

 

AFT, density 5152-84 - n / m 1.2 g/m3

Size of

Single layer weaving

Diagonal weaving

Multilayer weaving

Section, mm

Density,

Weight, 1 r.m,

Density,

Weight, 1 r.m,

Density,

Weight, 1 r.m,

 

g/cm3

g

g/cm3

g

g/cm3

g

4x4 through weaving

1,5

24

-

-

-

-

4x4

1,55

25

-

-

-

-

5x5

1,4

35

-

-

-

-

6x6

1,53

55

-

-

-

-

7x7

1,3

64

-

-

-

-

8x8

1,38

88

-

-

-

-

10 х 10

1,4

140

-

-

-

-

12x12

1,27

183

-

-

-

-

13 х 13

1,33

225

-

-

-

-

14x14

1,3

255

-

-

-

-

16 х 16

1,3

333

-

-

1,3

333

18 х 18

1,25

405

-

-

1,3

421

19x19

1,2

433

1,23

444

1,2

433

20x20

-

-

1,23

492

-

-

22x22

-

-

1,2

581

-

-

25x25

-

-

1,2

750

-

-

28x28

-

-

1,2

941

-

-

30x30

-

-

1,2

1080

-

-

32x32

-

-

1,2

1229

-

-

35x35

-

-

1,2

1470

-

-