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AS-M481: Burgmann M481 mechanical seal
Structure Description
Equivalent to Burgmann M481
For top entry drives, type M481 to DIN
Single or double seals
Unbalanced
Independent of direction of rotation
Multiple springs rotating
Liquid-lubricated
Cartridge unit
Operating range
DIN 28138 T2
Shaft diameter: d3 = 40 ... 220 mm (1,57" .... 8,66")
Single seals:
Pressure: p1 = vacuum ... 6 bar (87 PSI), p3 = pressureless
Temperature: t1* = -40 °C ... +150 (250) °C (-40 °F ... +302 (482) °F)
Double seals:
Pressure: p1 = vacuum ... 16 bar (232 PSI), p3 = max. 18 bar (261 PSI)
Temperature: t1* = -40 °C ... +200 (350) °C (-40 °F ... +392 (662) °F)
Sliding velocity: vg = 0 ... 5 m/s (0 ... 16 ft/s)
For applications beyond this range, please inquire.
* Higher or lower temperatures on request.
Materials
According to application and customer's specification
Structure Description
Equivalent to Burgmann M481
For top entry drives, type M481 to DIN
Single or double seals
Unbalanced
Independent of direction of rotation
Multiple springs rotating
Liquid-lubricated
Cartridge unit
Operating range
DIN 28138 T2
Shaft diameter: d3 = 40 ... 220 mm (1,57" .... 8,66")
Single seals:
Pressure: p1 = vacuum ... 6 bar (87 PSI), p3 = pressureless
Temperature: t1* = -40 °C ... +150 (250) °C (-40 °F ... +302 (482) °F)
Double seals:
Pressure: p1 = vacuum ... 16 bar (232 PSI), p3 = max. 18 bar (261 PSI)
Temperature: t1* = -40 °C ... +200 (350) °C (-40 °F ... +392 (662) °F)
Sliding velocity: vg = 0 ... 5 m/s (0 ... 16 ft/s)
For applications beyond this range, please inquire.
* Higher or lower temperatures on request.
Materials
According to application and customer's specification
| AS-M481 Dimensions(mm) | |||||||||||||||
| d3* | d71) | d1 | n×d2 | d4 | d0 | k | L1 | L2 | LW* | l1 | l2 | A | M1 | M1 | A1B |
| 40 | 38 | 175 | 4×18 | 110 | 90 | 142 | 87 | 136 | 143 | 15 | 28 | 122 | M12 | M16 | G3/8 |
| 50 | 48 | 240 | 8×18 | 176 | 135 | 210 | 89 | 149 | 148 | 17 | 28 | 157 | M12 | M16 | G3/8 |
| 60 | 58 | 240 | 8×18 | 176 | 135 | 210 | 93.5 | 156 | 158 | 17 | 28 | 168 | M12 | M16 | G3/8 |
| 80 | 78 | 275 | 8×22 | 204 | 155 | 240 | 104.5 | 189 | 168 | 20 | 34 | 203 | M16 | M20 | G1/2 |
| 100 | 98 | 305 | 8×22 | 234 | 190 | 270 | 109 | 190 | 178 | 20 | 34 | 228 | M16 | M20 | G1/2 |
| 125 | 120 | 330 | 8×22 | 260 | 215 | 295 | 110 | 205 | 203 | 20 | 40 | 268 | M20 | M20 | G1/2 |
| 140 | 135 | 395 | 12×22 | 313 | 250 | 350 | 124 | 222 | 208 | 20 | 40 | 285 | M20 | M20 | G1/2 |
| 160 | 150 | 395 | 12×22 | 313 | 265 | 350 | 127.5 | 219.5 | 213 | 25 | 40 | 297 | M20 | M20 | G1/2 |
| 180 | 170 | 445 | 12×22 | 364 | 310 | 400 | 132.5 | 230 | 233 | 25 | 45 | 332 | M20 | M20 | G1/2 |
| 200 | 190 | 445 | 12×22 | 364 | 310 | 400 | 137.5 | 237.5 | 243 | 25 | 45 | 352 | M20 | M20 | G1/2 |
| 220 | 210 | 505 | 16×22 | 422 | 340 | 460 | 149.5 | 249.5 | 263 | 25 | 50 | 381 | M20 | M20 | G1/2 |
| * To DIN 28154 | |||||||||||||||
