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