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TYPE VD12
APPLICATION
High-performance VD12 metal bellows type. The VD12 type metal bellows mechanical seal is designed to operate under extremely demanding conditions. It is widely used in the refinery, petrochemical, chemical, paper-making, and pharmaceutical industries, where temperature is a critical factor. It is suitable for both low-temperature and high-temperature applications.
| Item | Description |
| 1. | Stationary seat |
| 2. | Stationary housing |
| 3. | Metal bellows |
| 4. | Secondary seal |
| 5. | Rotary seal ring |
| 6. | Secondary seal |
| 7. | Rotary housing |
| 8. | Secundary seal |
| 9. | Tightening ring |
| 10. | Fixing screw |
| 11. | Tightening screw |
| LIMITING FACTORS |
| D1= 16… 80 mm |
| p1= 69 bar |
| t= -75°C to 425°C |
| Vg= 17 m/s |
| pV= 170 bar m/s |
Features
Single mechanical seal
Inner
Metal bellows mechanical seals
Independent of the shaft rotating direction
Materials
Seal face: SiC, TC, Carbon Antimony impregnated
Stationary seat: SiC, TC
Secondary seal: Flexible Carbon
Metal Parts: AM 350, SS 316L, Inconel 718, Hastelloy C, Carpenter 42
Optional materials on request
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