The 8-1 Mechanical Seal is a reliable industrial sealing solution designed as a direct replacement for AESSEAL M01S and John Crane 8-1. It is widely used in industrial pumps and rotating equipment, providing stable and efficient sealing performance across various operating conditions.
Engineered with flexible design options, the 8-1 supports multiple seat configurations including P, A, W, and PP types, allowing it to adapt to different application requirements. It also accommodates a wide range of material combinations such as carbon, ceramic, silicon carbide, and stainless steel.
With its multi-spring construction and robust design, this seal ensures reduced wear, improved durability, and long service life, making it ideal for demanding industrial environments.
- Direct replacement for AESSEAL M01S & John Crane 8-1
- Multi-spring mechanical seal design
- Multiple seat options (P / A / W / PP types)
- Supports various materials (Carbon / SIC / Ceramic / SS304)
- High resistance to pressure, wear, and corrosion
- Reduced shaft and sleeve wear
- Reliable performance in industrial applications
| Seal size (inches) | d | d 3 | d 4 | d 6 | d 7 | l 1 | l 3 |
| 0.500 | 12.70 | 26.70 | 30.00 | 14.5 | 25.60 | twenty one | 7.90 |
| 0.625 | 15.87 | 30.70 | 34.00 | 17.5 | 31.95 | 19 | 10.30 |
| 0.750 | 19.05 | 34.00 | 37.00 | twenty one | 35.12 | 22.2 | 10.30 |
| 0.875 | 22.22 | 37.20 | 40.00 | twenty four | 38.30 | twenty four | 10.30 |
| 1.000 | 25.40 | 40.30 | 43.00 | 27.5 | 41.48 | 25 | 11,15 |
| 1.125 | 28.57 | 43.50 | 46.00 | 30.5 | 44.65 | 27 | 11.15 |
| 1.250 | 31.75 | 48.30 | 51.00 | 33.5 | 47.83 | 27 | 11.15 |
| 1.375 | 34.92 | 51.50 | 54.00 | 37 | 51.00 | 29 | 11.15 |
| 1.500 | 38.10 | 54.60 | 58.00 | 40 | 54.18 | 29 | 11.15 |
| 1.625 | 41.27 | 61.00 | 64.00 | 43.5 | 60.53 | 35 | 12.75 |
| 1.750 | 44.45 | 64.20 | 67.00 | 46.5 | 63.70 | 35 | 12.75 |
| 1.875 | 47.62 | 67.30 | 70.00 | 49.5 | 66.88 | 35 | 12.75 |
| 2.000 | 50.80 | 70.50 | 73.00 | 53 | 70.05 | 35 | 12.75 |
| 2.125 | 53.97 | 76.90 | 80.00 | 56 | 76.40 | 43 | 14.33 |
| 2.250 | 57.15 | 80.00 | 83.00 | 59 | 79.58 | 43 | 14.33 |
| 2.375 | 60.32 | 83.20 | 86.00 | 62.5 | 82.75 | 43 | 14.33 |
| 2.500 | 63.50 | 86.40 | 89.00 | 65.5 | 85.93 | 43 | 14.33 |
| 2.625 | 66.67 | 89.60 | 92.00 | 68.5 | 85.93 | 43 | 15.93 |
| 2.750 | 69.85 | 92.70 | 96.00 | 72 | 89.10 | 43 | 15.93 |
| 2.875 | 73.02 | 95.90 | 99.00 | 75 | 95.45 | 43 | 15.93 |
| 3.000 | 76.20 | 97.50 | 100.00 | 78.5 | 98.63 | 43 | 15.93 |
| 3.125 | 79.37 | 100.70 | 104.00 | 81.5 | 101.80 | 43 | 19.84 |
| 3.250 | 82.55 | 105.40 | 108.00 | 84.5 | 104.98 | 43 | 19.84 |
| 3.375 | 85.73 | 108.60 | 111.00 | 88 | 108.15 | 43 | 19.84 |
| 3.500 | 88.90 | 111.80 | 115.00 | 91 | 111.13 | 43 | 19.84 |
| 3.625 | 92.08 | 115.00 | 118.00 | 94 | 114.35 | 43 | 19.84 |
| 3.750 | 95.25 | 118.10 | 121.00 | 97.5 | 117.68 | 43 | 19.84 |
| 3.875 | 98.43 | 121.30 | 124.00 | 100.5 | 120.85 | 43 | 19.84 |
| 4.000 | 104.60 | 124.50 | 127.00 | 103.5 | 124.03 | 43 | 19.84 |
| 4.125 | 104.78 | 130.20 | 134.00 | 107 | 130.38 | 42.9 | 19.84 |
| 4.250 | 107.65 | 133.40 | 137.00 | 110 | 133.55 | 42.9 | 19.84 |
| 4.375 | 111.13 | 136.50 | 140.00 | 113.5 | 136.72 | 42.9 | 19.84 |
| 4.500 | 114.30 | 139.70 | 143.00 | 116.5 | 139.90 | 42.9 | 19.84 |
| 4.625 | 117.48 | 142.90 | 146.00 | 119.5 | 143.08 | 42.9 | 19.84 |
| 4.750 | 120.65 | 146.10 | 146.00 | 122.5 | 146.25 | 42.9 | 19.84 |
| 4.875 | 123.83 | 149.20 | 153.00 | 126 | 149.43 | 42.9 | 19.84 |
| 5.000 | 127.00 | 152.40 | 156.00 | 129 | 152.60 | 42.9 | 19.84 |
| 5.125 | 130.18 | 155.60 | 159.00 | 132 | 155.77 | 42.9 | 19.84 |
| 5.250 | 133.35 | 165.10 | 168.00 | 135.5 | 158.95 | 50.8 | 19.84 |
| 5.375 | 136.53 | 168.28 | 171.45 | 138.5 | 162.12 | 50.8 | 19.84 |
| 5.500 | 139.70 | 171.50 | 175.00 | 141.5 | 165.30 | 50.8 | 19.84 |
| 5.625 | 142.88 | 174.60 | 178.00 | 145 | 168.47 | 50.8 | 19.84 |
| 5.750 | 146.05 | 177.80 | 181.00 | 149 | 177.23 | 50.8 | 25.40 |
| 5.875 | 149.23 | 181.00 | 14.00 | 152.5 | 180.41 | 50.8 | 25.40 |
| 6.000 | 152.40 | 184.20 | 188.00 | 155.5 | 183.59 | 50.8 | 25.40 |
- Industrial pump systems
- Mixers and agitators
- Chemical processing plants
- Oil & gas industries
- Centrifugal pumps and rotating equipment
- General industrial operations