686 Metal Bellow Mechanical Seal replace Burgmann MFLWT80
Description:
686 Mechanical Seal
For big compressors and industrial pumps
Replacing the mechanical seal of Burgmann MFLWT80
Operational Conditions:
Temperature: -20℃ to +370℃
Pressure: ≤2.0MPa
Speed: ≤23m/s
Materials:
Stationary Ring：TC, Silicon Carbide
Rotary Ring：Carbon ,Silicon Carbide,TC
Secondary Seal：NBR,EPDM,Viton
Bellows：Steel
Spring and Metal Parts：Steel
Applications:
Oil, light hydrocarbon,
aromatic Hydrocarbon,
organic solvents,
week acids, ammonia
| d(mm) | D3 | D2 | L1 | L3 |
| 16 | 38 | 35 | 46.7 | 10 |
| 18 | 40 | 37 | 46.7 | 11.5 |
| 20 | 42 | 40 | 46.7 | 11.5 |
| 22 | 44 | 43 | 46.7 | 11.5 |
| 24 | 46 | 43 | 46.7 | 11.5 |
| 25 | 47 | 45 | 46.7 | 11.5 |
| 28 | 50 | 48 | 46.7 | 11.5 |
| 30 | 52 | 50 | 46.7 | 11.5 |
| 32 | 54 | 56 | 46.7 | 14 |
| 33 | 55 | 56 | 46.7 | 14 |
| 35 | 57 | 58 | 46.7 | 14 |
| 38 | 60 | 61 | 46.7 | 14 |
| 40 | 66 | 63 | 47.7 | 14 |
| 43 | 69 | 66 | 47.7 | 14 |
| 45 | 71 | 70 | 47.7 | 15 |
| 48 | 74 | 73 | 47.7 | 15 |
| 50 | 76 | 75 | 47.7 | 15 |
| 53 | 79 | 78 | 47.7 | 15 |
| 55 | 81 | 80 | 47.7 | 15 |
| 58 | 85 | 83 | 53.2 | 15 |
| 60 | 87 | 85 | 53.2 | 15 |
| 63 | 90 | 90 | 53.2 | 18 |
| 65 | 92 | 92 | 53.2 | 18 |
| 68 | 95 | 97 | 53.2 | 18 |
| 70 | 97 | 97 | 53.2 | 18 |
| 75 | 102 | 105 | 53 | 18.2 |
| 80 | 107 | 110 | 53 | 18.2 |
| 85 | 112 | 115 | 53 | 18.2 |
| 90 | 117 | 120 | 54 | 17.2 |
| 95 | 122 | 125 | 54 | 17.2 |
| 100 | 127 | 134.3 | 54.2 | 20 |
