Seal Type |
Metal Bellows Mechanical Seal |
Integrates elasticity and torque transmission |
Key Features |
- Continuous bellows structure for high sealing reliability
- High elasticity compensates for shaft vibration/misalignment
- No auxiliary O-rings (reduces leakage points) |
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Temperature Range |
-196°C ~ +650°C |
Depends on material (e.g., stainless steel vs. exotic alloys) |
Pressure Range |
0 ~ 30 MPa |
Varies by design (low-pressure to high-pressure applications) |
Bellows Material |
Stainless Steel (304/316L), Hastelloy, Monel |
Selected for corrosion/temperature resistance |
Seal Face Materials |
- Primary: Tungsten Carbide (WC), Silicon Carbide (SiC)
- Secondary: Graphite, PTFE |
Hardness: WC ≥1800 HV, SiC ≥1300 HV |
Shaft Diameter Range |
10 mm ~ 200 mm |
Standard sizes for pumps, compressors, and turbines |
Rotational Speed |
≤20 m/s |
Linear velocity limit for high-speed applications |
Media Compatibility |
Corrosive fluids, high-temperature gases, cryogenic liquids, abrasive slurries |
Suitable for harsh industrial environments |
Industry Applications |
Petrochemical, Power Generation, Pharmaceutical, Food & Beverage, Aerospace |
Critical systems requiring zero leakage or high reliability |
Standards Compliance |
API 682, ISO 21049, ASME B73.1/B73.2 |
Certified for heavy-duty and hygienic applications |
Installation Type |
Cartridge-mounted (pre-assembled) or split-design |
Tool-free alignment for field installation |