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SS-MFLWT: Burgmann MFLWT replacement

Description:
SS-MFLWT: Metal bellows seal, Replacement of Burgmann MFLWT mechanical seal

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Features
Equivalent to Burgmann MFLWT
For unstepped shafts
Single Seal
Balanced
Independent of direction of rotation
Metal bellows rotating
Operating range
Shaft diameter: d1 = 16 ... 150 mm (0.63" … 6")
Externally pressurized:
p1 = … 25 bar (363 PSI)
Internally pressurized:
p1 p1 p1 Stationary seat lock necessary
Temperature: t = -40 °C … +400 °C (-148 °F … +752 °F)
Sliding velocity: vg = 20 m/s (66 ft/s)
Materials
Seal face: Carbon graphite antimony impregnated (A), Silicon carbide (Q12)
Seat: Silicon carbide (Q1)
Bellows: Inconel® 718 hardened (M6), Hastelloy® C-276 (M5)
Metal parts: CrNiMo steel (G), Duplex (G1), Carpenter® 42 (T4), Hastelloy® C-4 (M)
SSMFLWT90(Equivalent to Bergmann MFLWT90
Shaft diameter: d1 = 16 … 150 mm (0.64" … 6")
Internally pressurized: p1 = … 16 bar (232 PSI)
Externally pressurized: p1 = 10 bar (145 PSI)
Temperature: t = -20 °C ... +400 °C (-4 °F ... +752 °F), stationary seat lock necessary.
Sliding velocity: vg = 20 m/s (66 ft/s)
Advantages
For extreme high temperature ranges
No dynamically loaded O-Ring
Self cleaning effect
Short installation length possible
Pumping screw for highly viscous media available (dependent on direction of rotation).
Recommended applications
Refining technology
Power plant technology
Chemical industry
Hot media
Highly viscous media
Pumps
Special rotating equipment

d1 d3 d6 d7 d8 l1 l3 l5 l6 l7 l8 l9 f k mx
16 38 29.0 35.0 3 58.0 46.5 2.0 5 9 19.5 11.5 5 5 M5
18 40 31.0 37.0 3 58.0 46.5 2.0 5 9 19.5 11.5 5 5 M5
20 42 34.0 40.0 3 58.0 46.5 2.0 5 9 19.5 11.5 5 5 M5
22 44 37.0 43.0 3 58.0 46.5 2.0 5 9 19.5 11.5 5 5 M5
24 46 37.0 43.0 3 58.0 46.5 2.0 5 9 19.5 11.5 5 5 M5
25 47 39.0 45.0 3 58.0 46.5 2.0 5 9 19.5 11.5 5 5 M5
28 50 42.0 48.0 3 58.0 46.5 2.0 5 9 19.5 11.5 5 5 M6
30 52 44.0 50.0 3 58.0 46.5 2.0 5 9 19.5 11.5 5 5 M6
32 54 49.0 56.0 4 60.5 46.5 2.0 6 9 22.0 14.0 5 5 M6
33 55 49.0 56.0 4 60.5 46.5 2.0 6 9 22.0 14.0 5 5 M6
35 57 51.0 58.0 4 60.5 46.5 2.0 6 9 22.0 14.0 5 5 M6
38 60 54.0 61.0 4 60.5 46.5 2.0 6 9 22.0 14.0 5 5 M6
40 66 56.0 63.0 4 61.5 47.5 2.0 6 9 22.0 14.0 5 6 M6
43 69 59.0 66.0 4 61.5 47.5 2.0 6 9 22.0 14.0 5 6 M6
45 71 62.0 70.0 4 62.5 47.5 2.5 6 9 23.0 15.0 5 6 M6
48 74 65.0 73.0 4 62.5 47.5 2.5 6 9 23.0 15.0 5 6 M6
50 76 67.0 75.0 4 62.5 47.5 2.5 6 9 23.0 15.0 5 6 M6
53 79 70.0 78.0 4 62.5 47.5 2.5 6 9 23.0 15.0 5 6 M6
55 81 72.0 80.0 4 62.5 47.5 2.5 6 9 23.0 15.0 5 6 M6
58 85 75.0 83.0 4 68.0 53.0 2.5 6 9 23.0 15.0 5 6 M6
60 87 77.0 85.0 4 68.0 53.0 2.5 6 9 23.0 15.0 6 6 M8
63 90 81.0 90.0 4 71.0 53.0 2.5 7 9 26.0 18.0 6 6 M8
65 92 83.0 92.0 4 71.0 53.0 2.5 7 9 26.0 18.0 6 6 M8
68 95 88.0 97.0 4 71.0 53.0 2.5 7 9 26.0 18.0 6 6 M8
70 97 88.0 97.0 4 71.0 53.0 2.5 7 9 26.0 18.0 6 6 M8
75 102 95.0 105.0 4 71.0 52.8 3.0 7 9 26.2 18.2 6 6 M8
80 107 100.0 110.0 4 71.0 52.8 3.0 7 9 26.2 18.2 6 6 M8
85 112 105.0 115.0 4 71.0 52.8 3.0 7 9 26.2 18.2 6 6 M8
90 117 110.0 120.0 4 71.0 53.8 3.0 7 9 25.2 17.2 6 6 M8
95 122 115.0 125.0 4 71.0 53.8 3.0 7 9 25.2 17.2 6 6 M8
100 127 122.2 134.3 5 74.0 54.0 3.0 9 11 30.0 20.0 6 6 M8

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