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BV-1 Balanced mechanical seals

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

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