The MA-J04 – MA-J05 Mechanical Seal is a high-performance metal bellows seal designed for extreme industrial applications requiring both high pressure and high temperature resistance. This model is available in single-ply and double-ply bellows configurations, allowing it to adapt to different pressure demands.
With operating limits up to 2 MPa (single ply) and up to 6.9 MPa (double ply), speeds up to 25 m/s, and a wide temperature range from -75°C to +425°C, this seal is engineered for the most demanding environments. The flexible carbon secondary seal ensures a completely elastomer-free design, making it ideal for high-temperature applications.
Constructed from premium materials such as silicon carbide, carbon, and advanced alloys including AM350, Inconel 718, Titanium, and Hastelloy-C, the MA-J04 / J05 provides exceptional resistance to heat, pressure, corrosion, and mechanical stress.
- Metal bellows seal (single & double ply options)
- Elastomer-free design (flexible carbon secondary seal)
- Pressure:
- ≤2 MPa (single ply)
- ≤6.9 MPa (double ply)
- Speed: ≤25 m/s
- Temperature: -75°C to +425°C
- Sealing faces: SiC / Carbon / TC
- Excellent resistance to extreme pressure and temperature
| d (mm) | d 1 | d 3 | d 4 | l 1 | l 2 |
| 40 | 91 | 175 | 110 | 115 | 165 |
| 50 | 107 | 240 | 176 | 115 | 175 |
| 60 | 120 | 240 | 176 | 125 | 195 |
| 80 | 149 | 275 | 204 | 140 | 215 |
| 100 | 174 | 305 | 234 | 140 | 230 |
| 125 | 199 | 330 | 260 | 160 | 255 |
| 140 | 218 | 395 | 313 | 170 | 275 |
| 160 | 237 | 395 | 313 | 170 | 275 |
| 180 | 263 | 445 | 364 | 190 | 300 |
| 200 | 288 | 445 | 364 | 190 | 320 |
| 220 | 326 | 505 | 422 | 200 | 335 |
- High-pressure industrial pumps
- Petrochemical and refinery plants
- Thermal oil and heat transfer systems
- Power generation facilities
- Chemical processing (extreme conditions)
- Heavy-duty industrial environments
