Operating Parameters
d1-18...200mm
0.625"...8"IP1=16(25)bar
230(360)PSI/t=-50...220℃. (-20...180℃*)Vg=20m/s(10/s*) 66(33)ft/s*) Limit for shrink-fitted carbide seal faces with d1=105mm
Axial movement:d15100mm±0.5mm d1>100mm±2.0mm
Profile
Double seal / Unbalanced / Independent of direction of rotation / Multiple springs
Having "M7N" series of the same design, except the installation length of the drive collar, the other dimensions (d1 <100MM)in line with DIN 24960 standards.
Technical Dimensions for M74D Mechanical Seal (Unit: mm)
| d₁ | d₃ | d₆ | d₇ | d₈ | d₉ | d₁₁ | d₁₂ | dₛ | l₁ | l₃ | l₄ |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 18 | 33 | 27.0 | 33.0 | 3 | 4 | 24.0 | 30.0 | - | 61.0 | 38 | 19.0 |
| 20 | 35 | 29.0 | 35.0 | 3 | 4 | 29.5 | 35.0 | - | 61.0 | 38 | 19.0 |
| 22 | 37 | 31.0 | 37.0 | 3 | 4 | 29.5 | 35.0 | 42 | 61.0 | 38 | 19.0 |
| 24 | 39 | 33.0 | 39.0 | 3 | 4 | 32.0 | 38.0 | 44 | 61.0 | 38 | 19.0 |
| 25 | 40 | 34.0 | 40.0 | 3 | 4 | 32.0 | 38.0 | 45 | 61.0 | 38 | 19.0 |
| 28 | 43 | 37.0 | 43.0 | 3 | 4 | 36.0 | 42.0 | 47 | 62.0 | 39 | 19.5 |
| 30 | 45 | 39.0 | 45.0 | 3 | 4 | 39.2 | 45.0 | 49 | 62.0 | 39 | 19.5 |
| 32 | 47 | 42.0 | 48.0 | 3 | 4 | 42.2 | 48.0 | 51 | 62.0 | 39 | 19.5 |
| 33 | 48 | 42.0 | 48.0 | 3 | 4 | 44.2 | 50.0 | 51 | 62.0 | 39 | 19.5 |
| 35 | 50 | 44.0 | 50.0 | 3 | 4 | 46.2 | 52.0 | 54 | 62.0 | 39 | 19.5 |
| 38 | 55 | 49.0 | 56.0 | 4 | 4 | 49.2 | 55.0 | 59 | 69.0 | 41 | 20.5 |
| 40 | 57 | 51.0 | 58.0 | 4 | 4 | 52.2 | 58.0 | 61 | 70.0 | 42 | 21.0 |
| 43 | 60 | 54.0 | 61.0 | 4 | 4 | 53.3 | 62.0 | 65 | 70.0 | 42 | 21.0 |
| 45 | 62 | 56.0 | 63.0 | 4 | 4 | 55.3 | 64.0 | 66 | 70.0 | 42 | 21.0 |
| 48 | 65 | 59.0 | 66.0 | 4 | 4 | 59.7 | 68.4 | 69 | 70.0 | 42 | 21.0 |
| 50 | 67 | 62.0 | 70.0 | 4 | 4 | 60.8 | 69.3 | 71 | 73.0 | 43 | 21.5 |
| 53 | 70 | 65.0 | 73.0 | 4 | 4 | 63.8 | 72.3 | 75 | 73.0 | 43 | 21.5 |
| 55 | 72 | 67.0 | 75.0 | 4 | 4 | 66.5 | 75.4 | 76 | 73.0 | 43 | 21.5 |
| 58 | 79 | 70.0 | 78.0 | 4 | 5 | 69.5 | 78.4 | 83 | 86.0 | 56 | 28.0 |
| 60 | 81 | 72.0 | 80.0 | 4 | 5 | 71.5 | 80.4 | 85 | 86.0 | 56 | 28.0 |
| 63 | 84 | 75.0 | 83.0 | 4 | 5 | 74.5 | 83.4 | 88 | 85.0 | 55 | 27.5 |
| 65 | 86 | 77.0 | 85.0 | 4 | 5 | 76.5 | 85.4 | 95 | 85.0 | 55 | 27.5 |
| 68 | 89 | 81.0 | 90.0 | 4 | 5 | 82.7 | 91.5 | 93 | 91.0 | 55 | 27.5 |
| 70 | 91 | 83.0 | 92.0 | 4 | 5 | 83.0 | 92.0 | 95 | 92.0 | 56 | 28.0 |
| 75 | 99 | 88.0 | 97.0 | 4 | 5 | 90.2 | 99.0 | 105 | 92.0 | 56 | 28.0 |
