Enactus-M74-D Burgmann M74-D Replacement
Features
For plain shafts
Dual seal
Unbalanced
Rotating multiple springs
Independent of direction of rotation
Seal concept based on the M7 range
Variant with pumping screw available (M74F-D)
Advantages
Efficient stock keeping due to easily interchangeable faces
Extended selection of materials
Flexibility in torque transmissions
EN 12756 (For connection dimensions d1 up to 100 mm (3.94"))
Recommended applications
Chemical industry
Process industry
Pulp and paper industry
Low solids content and low abrasive media
Toxic and hazardous media
Media with poor lubrication properties
Adhesives
Chemical standard pumps
Operating range
Shaft diameter:
d1 = 18 ... 200 mm (0.71" … 7.87")
Pressure:
p1 = 25 bar (363 PSI)
Temperature:
t = -50 °C ... 220 °C
(-58 °F … 428 °F)
Sliding velocity:
vg = 20 m/s (66 ft/s)
Axial movement:
d1 up to 100 mm: ±0.5 mm
d1 from 100 mm: ±2.0 mm
Materials
Seal face: Special cast CrMo steel (S),Website:, Silicon carbide (Q1, Q2)
Seat G9: Carbon graphite antimony impregnated (A), Carbon graphite resin impregnated (B), Silicon carbide (Q1*, Q2*)
Seat G4: Silicon carbide (Q1*, Q2*)
Seat G6: Silicon carbide (Q1*, Q2*)
Seat G13: Carbon graphite antimony impregnated (A), Carbon graphite resin impregnated (B)
* Cannot be combined with seal face made of S
Service
Provide special design
According to the requirements and conditions for the custom processing
imensions in mm
d1
d3
d6
d7
d8
d9
d11
d12
ds
l1
l3
l4
l5
l6
l7
l8
l9
l10
l11
l12
l13
l14
l15
l16
l28
l31
l35
mx
t
R
18
33
27
33
3
4
24
30
–
61
38
19
2
5
9
19.5
11.5
8.5
12.5
9
10
8
1.5
5
7.5
17
15
M5
3.5
1.5
20
35
29
35
3
4
29.5
35
–
61
38
19
2
5
9
19.5
11.5
8.5
12.5
8.5
9.5
7.5
1.5
5
7.5
17
15
M5
3.5
1.5
22
37
31
37
3
4
29.5
35
42
61
38
19
2
5
9
19.5
11.5
8.5
12.5
8.5
9.5
7.5
1.5
5
7.5
17
15
M5
3.5
1.5
24
39
33
39
3
4
32
38
44
61
38
19
2
5
9
19.5
11.5
8.5
12.5
8.5
9.5
7.5
1.5
5
7.5
17
15
M5
3.5
1.5
25
40
34
40
3
4
32
38
45
61
38
19
2
5
9
19.5
11.5
8.5
12.5
8.5
9.5
7.5
1.5
5
7.5
17
15
M5
3.5
1.5
28
43
37
43
3
4
36
42
47
62
39
19.5
2
5
9
19.5
11.5
8.5
14
10
11
9
1.5
5
7.5
17.5
15
M6
3.5
1.5
30
45
39
45
3
4
39.2
45
49
62
39
19.5
2
5
9
19.5
11.5
8.5
14
11.5
11
10.5
1.5
5
7.5
17.5
15
M6
3.5
1.5
32
47
42
48
3
4
42.2
48
51
62
39
19.5
2
5
9
19.5
11.5
8.5
14
11.5
11
10.5
1.5
5
7.5
17.5
15
M6
3.5
1.5
33
48
42
48
3
4
44.2
50
51
62
39
19.5
2
5
9
19.5
11.5
8.5
14.5
12
11.5
10.5
1.5
5
7.5
17.5
15
M6
3.5
1.5
35
50
44
50
3
4
46.2
52
54
62
39
19.5
2
5
9
19.5
11.5
8.5
14.5
12
11.5
11
1.5
5
7.5
17.5
15
M6
3.5
1.5
38
55
49
56
4
4
49.2
55
59
69
41
20.5
2
6
9
22
14
10
14.5
11.3
11.5
10.3
1.5
5
9
18.5
15
M6
3.5
1.5
40
57
51
58
4
4
52.2
58
61
70
42
21
2
6
9
22
14
10
14.5
11.8
11.5
10.8
1.5
5
9
19
15
M6
3.5
1.5
43
60
54
61
4
4
53.3
62
65
70
42
21
2
6
9
22
14
10
17
13.2
14.3
12
2
6
9
19
15
M6
3.5
2.5
45
62
56
63
4
4
55.3
64
66
70
42
21
2
6
9
22
14
10
17
12.8
14.3
11.6
2
6
9
19
15
M6
3.5
2.5
48
65
59
66
4
4
59.7
68.4
69
70
42
21
2
6
9
22
14
10
17
12.8
14.3
11.6
2
6
9
19
15
M6
3.5
2.5
50
67
62
70
4
4
60.8
69.3
71
73
43
21.5
2.5
6
9
23
15
10.5
17
12.8
14.3
11.6
2
6
9.5
19.5
15
M6
3.5
2.5
53
70
65
73
4
4
63.8
72.3
75
73
43
21.5
2.5
6
9
23
15
12
17
13.5
14.3
12.3
2
6
11
19.5
15
M6
3.5
2.5
55
72
67
75
4
4
66.5
75.4
76
73
43
21.5
2.5
6
9
23
15
12
18
14.5
15.3
13.3
2
6
11
19.5
15
M8
3.5
2.5
58
79
70
78
4
5
69.5
78.4
83
86
56
28
2.5
6
9
23
15
12
18
14.5
15.3
13.3
2
6
11
23.5
19
M8
3.5
2.5
60
81
72
80
4
5
71.5
80.4
85
86
56
28
2.5
6
9
23
15
12
18
14.5
15.3
13.3
2
6
11
23.5
19
M8
3.5
2.5
63
84
75
83
4
5
74.5
83.4
88
85
55
27.5
2.5
6
9
23
15
12
18
14.2
15.3
13.3
2
6
11
24.5
19
M8
3.5
2.5
65
86
77
85
4
5
76.5
85.4
95
85
55
27.5
2.5
6
9
23
15
12
18
14.2
15.3
13
2
6
11
24.5
19
M8
3.5
2.5
68
89
81
90
4
5
82.7
91.5
93
91
55
27.5
2.5
7
9
26
18
12.5
19
14.9
16
13.7
2
6
11.3
24.5
19
M8
3.5
2.5
70
91
83
92
4
5
83
92
95
92
56
28
2.5
7
9
26
18
12.5
18
14.2
15.3
13
2
6
11.3
23.5
19
M8
3.5
2.5
75
99
88
97
4
5
90.2
99
105
92
56
28
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