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Metal Bellows Mechanical Seals
STM85 Fitting Dimension(mm)
| Model | D1(h6) | D2(max) | D3(H11) | D4(H8) | D5 | L1(±0.5) | L2 | L3 |
| ST-M85-16 | 16 | 30.0 | 23 | 27 | 3 | 32.5 | 10.0 | 17.5 |
| ST-M85-18 | 18 | 32.0 | 27 | 33 | 3 | 30.5 | 7.0 | 14.0 |
| ST-M85-20 | 20 | 33.5 | 29 | 35 | 3 | 30.5 | 7.0 | 14.0 |
| ST-M85-22 | 22 | 36.5 | 31 | 37 | 3 | 30.5 | 7.0 | 14.0 |
| ST-M85-24 | 24 | 39.0 | 33 | 39 | 3 | 28.5 | 11.5 | 19.5 |
| ST-M85-25 | 25 | 39.6 | 34 | 40 | 3 | 28.5 | 11.5 | 19.5 |
| ST-M85-28 | 28 | 42.8 | 37 | 43 | 3 | 31.0 | 11.5 | 19.5 |
| ST-M85-30 | 30 | 45.0 | 39 | 45 | 3 | 31.0 | 11.5 | 19.5 |
| ST-M85-32 | 32 | 46.0 | 42 | 48 | 3 | 31.0 | 11.5 | 19.5 |
| ST-M85-33 | 33 | 48.0 | 42 | 48 | 3 | 31.0 | 11.5 | 19.5 |
| ST-M85-35 | 35 | 49.2 | 44 | 50 | 3 | 31.0 | 11.5 | 19.5 |
| ST-M85-38 | 38 | 52.3 | 49 | 56 | 4 | 31.0 | 14.0 | 22.0 |
| ST-M85-40 | 40 | 55.5 | 51 | 58 | 4 | 31.0 | 14.0 | 22.0 |
| ST-M85-43 | 43 | 57.5 | 54 | 61 | 4 | 31.0 | 14.0 | 22.0 |
| ST-M85-45 | 45 | 58.7 | 56 | 63 | 4 | 31.0 | 14.0 | 22.0 |
| ST-M85-48 | 48 | 61.9 | 59 | 66 | 4 | 31.0 | 14.0 | 22.0 |
| ST-M85-50 | 50 | 65.0 | 62 | 70 | 4 | 32.5 | 15.0 | 23.0 |
| ST-M85-55 | 55 | 70.0 | 67 | 75 | 4 | 32.5 | 15.0 | 23.0 |
| ST-M85-60 | 60 | 74.6 | 72 | 80 | 4 | 37.5 | 15.0 | 23.0 |
| ST-M85-65 | 65 | 84.1 | 77 | 85 | 4 | 37.5 | 15.0 | 23.0 |
| ST-M85-70 | 70 | 87.3 | 83 | 92 | 4 | 42.0 | 18.0 | 26.0 |
| ST-M85-75 | 75 | 95.0 | 88 | 97 | 4 | 42.0 | 18.0 | 26.0 |
| ST-M85-80 | 80 | 98.4 | 95 | 105 | 4 | 41.8 | 18.2 | 26.2 |
| ST-M85-85 | 85 | 104.7 | 100 | 110 | 4 | 41.8 | 18.2 | 26.2 |
| ST-M85-90 | 90 | 111 | 105 | 115 | 4 | 46.8 | 18.2 | 26.2 |
| ST-M85-95 | 95 | 114 | 110 | 120 | 4 | 47.8 | 17.2 | 25.2 |
| ST-M85-100 | 100 | 117.4 | 115 | 125 | 4 | 47.8 | 17.2 | 25.2 |