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Balanced mechanical seals

Balanced mechanical seals

  $0.00
Description

DIN 24960

 

 

The following force factors impact the rotating ring of the friction couple: pressure, spring strength, friction of the rubber sealing ring on the shaft and average contact pressure.

The hydraulic relief results from contact pressure reduction in the friction couple, for which purpose the shaft is step-shaped.

Thus, a trouble-free and durable operation of the mechanical seal is ensured at a pressure of up to 25 bars and a speed of up to 20 m/s (the highets Р’РЎ parameter).

The mechanical seal of BV-1 type is often used in pumps in refineries, petrochemical plants and process industry.

The secondary seal is made on the shaft by means of an O-ring or PTFE ring wedgewise.

The seal design ensures low-cost maintenance due to the use of easily replaceable parts.

 

Analog:

AESSEAL M04 / M04S / W07DMB, Burgmann BT-C56.KB / BT-C5.KB / H74N, John Crane 59B / 58B, Vulcan 1659B / 1659BS, Sterling 259B / 259BS, KSB Multitec


 

The materials used for sealing faces:

carbographite

chromium steel

nickel chrome steel

increased rigidity nickel chrome steel

tungsten carbide

silicon carbide

ceramics (AI2O3)

 

Operating limits:

СЂ = 25 bars

t = -20 ... 180В°C

v = 20 m/s

 

 

 

BV-1.1 carbographite pressed into the sealing surface frame

 

 

BV-1.2 silicon carbide pressed into the sealing surface frame

 

 

BV-1.3 seal surface with tungsten carbide soldered on

 

d1

d2

d3

D4

D6

D7

D8

l3

l4

l1k

18

22

36

38

27

33

3

33.5

11.5

45

20

24

38

40

29

35

3

33.5

11.5

45

22

26

40

42

31

37

3

33.5

11.5

45

24

28

42

44

33

39

3

36.0

11.5

47.5

25

30

44

46

34

40

3

36.0

11.5

47.5

28

33

47

49

37

43

3

38.5

11.5

50

30

35

49

51

39

45

3

38.5

11.5

50

32

38

54

58

42

48

3

38.5

11.5

50

33

38

54

58

42

48

3

38.5

11.5

50

35

40

56

60

44

50

3

38.5

11.5

50

38

43

59

63

49

56

4

38.5

14.0

52.5

40

45

61

65

51

58

4

38.5

14.0

52.5

43

48

64

68

54

61

4

38.5

14.0

52.5

45

50

66

70

56

63

4

38.5

14.0

52.5

48

53

69

73

59

66

4

38.5

14.0

52.5

50

55

71

75

62

70

4

42.5

15.0

57.5

53

58

78

83

65

73

4

42.5

15.0

57.5

55

60

80

85

67

75

4

42.5

15.0

57.5

58

63

83

88

70

78

4

47.5

15.0

62.5

60

65

85

90

72

80

4

47.5

15.0

62.5

63

68

88

93

75

83

4

47.5

15.0

62.5

65

70

90

95

77

85

4

47.5

15.0

62.5

70

75

99

104

83

92

4

53.0

17.0

70

75

80

104

109

88

97

4

53.0

17.0

70

80

85

109

114

95

105

4

53.0

17.0

70

85

90

114

119

100

11 0

4

58.0

17.0

75

90

95

119

124

105

115

4

58.0

17.0

75

95

100

124

129

110

120

4

58.0

17.0

75

100

105

129

134

115

125

4

58.0

17.0

75

+ customized seals as per your drawings and specifications

Name
BV-1 Balanced mechanical seals
pcs.
  $0.00
Description

DIN 24960

 

 

The mechanical seal design of BV-2 type prevents the springs from contacting the delivery fluid and due to this problems which occur with other multi-spring seals are avoided. The profiled sealing surface of the rotating part provides for good hydraulic relief, making it possible to use the BV-2 type mechanical seal at a pressure of up to 40 bars.

Different types of sealing materials can be easily used due to the simple replacement process and commonality of the sealing surface.

The replacement of all seal components is easy and requires minimal cost, which makes seal repair an easy and inexpensive procedure.

 

Analog:

AESSEAL SAI / M010, Burgmann HJ92N / HJ97N, Roten EHS, Grundfos NGK, Hecker HN 435, KSB, Ropac Propac 50


 

Materials used for sealing faces:

carbographite

chromium steel

nickel chrome steel

increased rigidity nickel chrome steel

tungsten carbide

silicon carbide

ceramics (Al2O3)

 

Operating limits:

СЂ = 42 bars

t = -20 ... 180В°C

v = 10 m/s

 

 

d1

d3

D4

D6

D7

D8

l3

l4

llk

18

32

34

27

33

3

30

7.5

37.5

20

34

36

29

35

3

30

7.5

37.5

22

36

38

31

37

3

30

7.5

37.5

24

38

40

33

39

3

32.5

7.5

40

25

39

41

34

40

3

32.5

7.5

40

28

42

44

37

43

3

34

8.5

42.5

30

44

46

39

45

3

34

8.5

42.5

32

46

48

42

48

3

34

8.5

42.5

33

47

49

42

48

3

34

8.5

42.5

35

49

51

44

50

3

34

8.5

42.5

38

54

58

49

56

4

36.5

8.5

45

40

56

60

51

58

4

36.5

8.5

45

43

59

63

54

61

4

36.5

8.5

45

45

61

65

56

63

4

36.5

8.5

45

48

64

68

59

66

4

36.5

8.5

45

50

66

70

62

70

4

36.5

11

47.5

53

69

73

65

73

4

36.5

11

47.5

55

71

75

67

75

4

36.5

11

47.5

58

78

83

70

78

4

41.5

11

52.5

60

80

85

72

80

4

41.5

11

52.5

63

83

88

75

83

4

41.5

11

52.5

65

85

90

77

85

4

41.5

11

52.5

68

88

93

81

90

4

41.5

11

52.5

70

90

95

83

92

4

49

11

60

75

99

104

88

97

4

49

11

60

80

104

109

95

105

4

46

14

60

85

109

114

100

110

4

46

14

60

90

114

119

105

115

4

51

14

65

95

119

124

110

120

4

51

14

65

100

124

129

115

125

4

51

14

65

+ Customized seals as per your drawings and specifications

Name
BV-2 Balanced mechanical seals
pcs.
  $0.00
Description

DIN 24960

 

 

By installing a case on the shaft in the seal location, or by having a shaft outpur with a different diameter in the seal location, the resulting seal design uses the pressure of the substance to balance forces on the sealing surfaces of the mechanical seal.

Thus, a trouble-free and durable operation of the mechanical seal is ensured at a pressure of up to 25 bars and a speed of up to 20 m/s (the highest ""DC"" value).

The sealing face combination is selected in accordance with the substance used and operating conditions.

The secondary seal is made of O-rings having a quality grade consistent with the substance.

The other elements of the seal are made of nickel chrome steel.

 

Analog:

AESSEAL T01DB, Burgmann H12N, Hecker HN 430N

 

 

Sealing face materials:

carbographite

chromiium steel

nickel chrome steel

Increased rigidity nickel chrome steel

tungsten carbide

silicon carbide

ceramics (AI2O3)

 

Operating limits:

p = 25 bars

t = -20 ... 180В°C

v = 20 m/s

 

 

 

BT-1.1 carbographite pressed into the sealing surface frame

 

 

BT-1.2 silicon carbide pressed into the sealing surface frame

 

 

BT-1.3 sealing surface with tugsten carbide soldered on

 

d

d1

d2

D4

D7

l2

l3

l4

10

14

24

17

21

18

26

10

12

16

26

19

23

18

27

10

14

18

31

21

25

18

30

10

16

20

34

23

27

18

32

10

18

22

36

27

33

20

33

11

20

24

38

29

35

20

33

11

22

26

40

31

37

20

33

11

24

28

42

33

39

20

33

11

25

30

44

34

40

20

34

11

28

33

47

37

43

20

36

11

30

35

49

39

45

20

36

11

32

38

54

42

48

20

40

11

33

38

54

42

48

20

40

11

35

40

56

44

50

20

44

11

38

43

59

49

56

23

47

11.5

40

45

61

51

58

23

48

11.5

43

48

64

54

61

23

50

11.5

45

50

66

56

63

23

53

11.5

48

53

69

59

66

23

53

11.5

50

55

71

62

70

25

58

12

53

58

78

65

73

25

58

14

55

60

80

67

75

25

60

14

58

63

83

70

78

25

60

14

60

65

85

72

80

25

60

14

+ customized seals as per your drawings and specifications

Name
BT-1 Balanced mechanical seals
pcs.
  $0.00
Description

 

BV-3 hydraulically balanced mechanical seal with spring kit

 

Analog:

Burgmann HRN

 

Design with a set of small springs.

Springs are not in contact with the pumped liquid.

Ideal for viscous fluids, abrasive fluids, etc.

Fixed spring assembly.

Hydraulically unloaded.

It does not depend on the direction of rotation of the shaft.

Dimensions to DIN 24960 (EN12756).

 

Materials of friction pair:

- carbon graphite (A, B)

- tungsten carbide (U3)

- silicon carbide (Q1, Q2)

- ceramic Al O (V) 2 3

 

Elastomers:

- fluorine rubber, FKM (V)

- nitrile rubber (P)

- ethylene-propylene rubber, EPDM (E)

- perfluorinated rubber, FFKM (e.g. KalrezВ®)

- fluoropolymer in fluoroplastic sheath, FEP

 

Parameters:

- p = 25 bars

- t = -50 ... 220В°C

- v = 20 m/s

 

Does not require modification of the pump.

 

To order seals, it is enough to know the brand of the pump or the serial number of the seal.

 

Name
BV-3 Balanced mechanical seals
pcs.
  $0.00
Description

 

BT2V balanced mechanical seal for Hilge pumps, series:

- Contra

- Hygia

- Euro-Hygia

- Hygiana

- Sipla

 

BT2V01 mechanical seals for Hilge pumps

 

 

d1

d3

d7

l3

l4

28

43,0

48

34,5

10,5

38

52,8

57

35,0

10,5

 

BT2V02 mechanical seals for Hilge pumps

 

 

d1

d3

d7

l3

l4

28

43,0

48

38,0

10,5

 

BT2V03 mechanical seals for Hilge pumps

 

 

d1

d3

d7

l3

l4

19

33,5

31

29,0

8,0

28

40,0

43

33,0

9,0

38

52,0

60,5

43,0

11,5

 

Do not require any adaptation of the pump.

 

To order seals, it is sufficient to know the pump grade or the manufacturer's seal number.

 

Name
BT2V Balanced mechanical seals
pcs.
  $0.00
Description

 

BT3V balanced mechanical seals for Tuchenhagen pumps, series:

- Variflow KN

- Variflow TP

 

Do not require any adaptation of the pump.

 

To order seals, it is sufficient to know the pump grade or the manufacturer's seal number.

 

Name
BT3V Balanced mechanical seals
pcs.
  $0.00
Description

 

BV-2/SRL balanced mechanical seals for Grundfos Sarlin pumps, series:

- S1

- S2

- S3

- SA

- SV

 

Analog:

AESSEAL M010S1, Grundfos Sarlin, Roplan 201

 

Do not require any adaptation of the pump.

 

To order seals, it is sufficient to know the pump grade or the manufacturer's seal number.

 

Name
BV-2/SRL Balanced mechanical seals
pcs.
  $0.00
Description

 

BV-1-GF mechanical seals for Grundfos pumps, series:

- РўР 100

- РўР 125

- РўР 150

- РўР 200

- РўР 250

 

Analog:

DBUE

 

 

Shaft diameter

Pump brand

1 5/8""

TP 100

1 7/8""

РўР 125

2""

TP 100

2 1/2""

TP125/TP150

2 3/4""

TP 150

2 5/8""

TP100/TP200

 

Do not require any adaptation of the pump

 

To order seals, it is sufficient to know the pump grade or the manufacturer's seal number

Name
BV-1-GF Mechanical seals
pcs.
  $0.00
Description

 

BV-4/SRL Secondary mechanical seal for Grundfos S series pumps

 

Analog:

AES SSAIS06, Grundfos Sarlin

 

Materials of friction pair:

- carbon graphite (A, B)

- CrNi steel (S)

- silicon carbide (Q1, Q2)

 

Elastomers:

- fluorine rubber, FKM (V)

- nitrile rubber (P)

 

Do not require any adaptation of the pump.

 

To order seals, it is sufficient to know the pump grade or the manufacturer's seal number.

 

Name
BV-4/SRL Secondary mechanical seal
pcs.