The 109 Mechanical Seal is a high-performance industrial sealing solution designed as a direct replacement for AESSEAL M01 and John Crane 109. It is widely used in industrial pumps, mixers, and agitators, delivering reliable sealing performance across various operating conditions.
Engineered with advanced materials such as carbon, ceramic, silicon carbide, PTFE, and stainless steel, the 109 offers excellent resistance to corrosion, wear, and chemical exposure. Its robust design ensures stable operation even in demanding environments involving aggressive fluids.
With multi-spring construction and compliance with API standards, this seal provides enhanced reliability, reduced shaft wear, and long service life, making it ideal for heavy-duty industrial applications.
- Direct replacement for AESSEAL M01 & John Crane 109
- Multi-spring mechanical seal design
- Suitable for pumps, mixers, and agitators
- High resistance to corrosion, chemicals, and wear
- Supports multiple materials (Carbon / SIC / Ceramic / PTFE / SS304)
- Reduced shaft and sleeve wear
- Compliant with API standards
| Seal size d(inches) | d 3 | d 4 | d 6 | d 7 | l 1 | l 3 |
| 0.500 | 26.7 | 29 | 13.4 | 25.40 | 20.6 | 7.95 |
| 0.625 | 30.7 | 34 | 16.6 | 31.75 | 19.0 | 10.3 |
| 0.750 | 34.0 | 37 | 19.7 | 34.93 | 22.2 | 10.3 |
| 0.875 | 37.2 | 40 | 22.9 | 38.10 | 23.8 | 10.3 |
| 1.000 | 40.3 | 43 | 26.1 | 41.28 | 25.4 | 11.1 |
| 1.125 | 43.5 | 46 | 29.4 | 44.45 | 27.0 | 11.1 |
| 1.250 | 48.3 | 51 | 32.4 | 47.63 | 27.0 | 11.1 |
| 1.375 | 51.5 | 54 | 35.6 | 50.80 | 28.6 | 11.1 |
| 1.500 | 54.6 | 58 | 38.8 | 53.98 | 28.6 | 11.1 |
| 1.625 | 61.0 | 64 | 42.4 | 60.33 | 35.0 | 12.7 |
| 1.750 | 64.2 | 67 | 45.5 | 63.50 | 35.0 | 12.7 |
| 1.875 | 67.3 | 70 | 48.7 | 66.68 | 35.0 | 12.7 |
| 2.000 | 70.5 | 73 | 51.9 | 69.85 | 35.0 | 12.7 |
| 2.125 | 76.9 | 80 | 55.0 | 76.20 | 43.0 | 14.3 |
| 2.250 | 80.0 | 83 | 58.2 | 79.38 | 43.0 | 14.3 |
| 2.375 | 83.2 | 86 | 61.4 | 82.55 | 43.0 | 14.3 |
| 2.500 | 86.4 | 89 | 64.6 | 85.73 | 43.0 | 14.6 |
| 2.625 | 89.6 | 92 | 67.7 | 85.73 | 43.0 | 15.9 |
| 2.750 | 92.7 | 96 | 70.9 | 88.90 | 43.0 | 15.9 |
| 2.875 | 95.9 | 99 | 74.1 | 85.25 | 43.0 | 15.9 |
| 3.000 | 97.5 | 100 | 77.3 | 98.43 | 43.0 | 15.9 |
| 3.125 | 100.7 | 104 | 80.5 | 101.60 | 43.0 | 19.8 |
| 3.250 | 105.4 | 108 | 83.6 | 104.78 | 43.0 | 19.8 |
| 3.375 | 108.6 | 111 | 86.8 | 107.95 | 43.0 | 19.8 |
| 3.500 | 111.8 | 115 | 90.0 | 111.13 | 43.0 | 19.8 |
| 3.625 | 115.0 | 118 | 93.1 | 114.30 | 43.0 | 19.8 |
| 3.750 | 118.1 | 121 | 96.3 | 117.48 | 43.0 | 19.8 |
| 3.875 | 121.3 | 124 | 99.5 | 120.65 | 43.0 | 19.8 |
| 4.000 | 124.5 | 127 | 102.7 | 123.83 | 43.0 | 19.8 |
| 4.125 | 127.7 | 131 | 106.3 | 130.18 | 43.0 | 19.8 |
| 4.250 | 130.8 | 134 | 109.5 | 133.35 | 43.0 | 19.8 |
| 4.375 | 134.0 | 137 | 112.7 | 136.53 | 43.0 | 19.8 |
| 4.500 | 137.2 | 140 | 115.9 | 139.70 | 43.0 | 19.8 |
| 4.625 | 149.9 | 153 | 119.0 | 142.88 | 51.0 | 19.8 |
| 4.750 | 153.1 | 156 | 122.2 | 146.05 | 51.0 | 19.8 |
| 4.875 | 156.2 | 159 | 125.4 | 149.23 | 51.0 | 19.8 |
| 5.000 | 159.4 | 165 | 128.6 | 152.40 | 51.0 | 19.8 |
| 5.125 | 162.6 | 168 | 131.7 | 155.58 | 51.0 | 19.8 |
| 5.250 | 165.8 | 172 | 134.9 | 158.75 | 51.0 | 19.8 |
| 5.375 | 168.9 | 175 | 138.1 | 161.93 | 51.0 | 19.8 |
| 5.500 | 172.1 | 178 | 141.3 | 165.10 | 51.0 | 19.8 |
| 5.625 | 175.3 | 181 | \ | \ | 51.0 | \ |
| 5.750 | 178.5 | 184 | \ | \ | 51.0 | \ |
| 5.875 | 181.6 | 187 | \ | \ | 51.0 | \ |
| 6.000 | 184.8 | 191 | \ | \ | 51.0 | \ |
- Industrial pump systems
- Mixers and agitators
- Chemical and petrochemical industries
- Oil & gas processing
- Centrifugal pumps and rotating equipment
- Heavy-duty industrial operations