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NS-1 / NS-DN Mechanical seal with a conical spring

 

Simple, inexpensive single seal for undemanding operating conditions. For water pumps.

Tapered spring design.

Hydraulically not relieved.

Depends on the direction of shaft rotation.

 

Analog:

AESSEAL T04 / T04D, Burgmann BT-FN / BT-FN.NU, Roten 3 / Uniten 3, Vulcan 13, Sterling SR3 / SU3, Flowserve 43 / 43D, Latty T901 / T901D, Roplan R62 / R62D, Lowara CEA120

 

Materials for friction rings:

Seal rotating part:

ceramics Рђl203 (V)

silicon carbide (Q1,Q2)

 

Seal mating part:

carbographite (Рђ, Р’)

silicon carbide (Q1,Q2)

 

Parameters:

СЂ = 10 bars

t = -20 ... 180°С

v = 20 m/s

Allowable axial movement В±0,5 mm

 

 

NS-DN type

dimensions as per DIN 24960 (EN 12756)

d

d2

d1

L1

L2

10

20

21

15

7

12

22

23

18

7

14

24

25

22

7

16

26

27

23

7

18

32

33

24

10

20

33

35

25

10

22

36

37

25

10

24

37.4

39

27

10

25

38

40

27

10

28

42

43

29

10

30

44

45

30

10

32

45.5

48

30

10

33

46.5

48

39

10

35

49

50

39

10

38

56

56

42

13

40

58

58

42

13

 

NS-1 type

dimensions as per DIN 24960 (EN 12756)

d

d2

d1

L1

L2

10

19.5

18.1

15

5.5

11

22

20.6

18

5.5

12

23

20.6

18

5.5

13

25

23.1

22

6

14

25

23.1

22

6

15

28.7

26.9

22

7

16

28.7

26.9

23

7

17

28.7

26.9

23

7

18

32.7

30.9

24

8

19

32.7

30.9

25

8

20

32.7

30.9

25

8

21

37.5

35.4

25

8

22

37.5

35.4

25

8

23

37.5

35.4

27

8

24

37.5

35.4

27

8

25

40

38.2

27

8.5

28

45.5

43.3

29

9

29

45.5

43.3

30

9

30

45.5

43.3

30

9

32

45.5

43.3

30

9

33

48

53.5

39

11.5

35

50

53.5

39

11.5

38

56

60.5

39

11.5

40

58

60.5

39

11.5

 

Description

 

Simple, inexpensive single seal for undemanding operating conditions. For water pumps.

Tapered spring design.

Hydraulically not relieved.

Depends on the direction of shaft rotation.

 

Analog:

AESSEAL T04 / T04D, Burgmann BT-FN / BT-FN.NU, Roten 3 / Uniten 3, Vulcan 13, Sterling SR3 / SU3, Flowserve 43 / 43D, Latty T901 / T901D, Roplan R62 / R62D, Lowara CEA120

 

Materials for friction rings:

Seal rotating part:

ceramics Рђl203 (V)

silicon carbide (Q1,Q2)

 

Seal mating part:

carbographite (Рђ, Р’)

silicon carbide (Q1,Q2)

 

Parameters:

СЂ = 10 bars

t = -20 ... 180°С

v = 20 m/s

Allowable axial movement В±0,5 mm

 

 

NS-DN type

dimensions as per DIN 24960 (EN 12756)

d

d2

d1

L1

L2

10

20

21

15

7

12

22

23

18

7

14

24

25

22

7

16

26

27

23

7

18

32

33

24

10

20

33

35

25

10

22

36

37

25

10

24

37.4

39

27

10

25

38

40

27

10

28

42

43

29

10

30

44

45

30

10

32

45.5

48

30

10

33

46.5

48

39

10

35

49

50

39

10

38

56

56

42

13

40

58

58

42

13

 

NS-1 type

dimensions as per DIN 24960 (EN 12756)

d

d2

d1

L1

L2

10

19.5

18.1

15

5.5

11

22

20.6

18

5.5

12

23

20.6

18

5.5

13

25

23.1

22

6

14

25

23.1

22

6

15

28.7

26.9

22

7

16

28.7

26.9

23

7

17

28.7

26.9

23

7

18

32.7

30.9

24

8

19

32.7

30.9

25

8

20

32.7

30.9

25

8

21

37.5

35.4

25

8

22

37.5

35.4

25

8

23

37.5

35.4

27

8

24

37.5

35.4

27

8

25

40

38.2

27

8.5

28

45.5

43.3

29

9

29

45.5

43.3

30

9

30

45.5

43.3

30

9

32

45.5

43.3

30

9

33

48

53.5

39

11.5

35

50

53.5

39

11.5

38

56

60.5

39

11.5

40

58

60.5

39

11.5

 

Name
NS-1 / NS-DN Mechanical seal with a conical spring