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Product FlyersProduct Overview BrochureThis brochure provides a comprehensive overview of Technetics Group's product line, offering custom sealing solutions for critical industries. -
Market BrochuresAerospace BrochureThis brochure provides an overview of Technetics Group products for the aerospace market along with platforms where we have a... -
Product FlyersQualiseal® Mechanical Seals BrochureTurn to Qualiseal® for custom-engineered mechanical sealing solutions that deliver unmatched performance for the most demanding applications. -
Product FlyersMetal Seals Master CatalogTechnetics Group is committed to providing the highest quality metal seals and sealing systems. We provide seals for use in... -
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Market BrochuresAbout Qualiseal® TechnologyMeet the global leader in custom-engineered mechanical seals for demanding aerospace applications.
Sometimes, operating conditions are so harsh ordinary secondary seals won’t do the job. That’s when it’s time to call in the big guns— Technetics Qualiseal® metal bellows seals. We offer metal bellows as a secondary sealing option for mechanical face seals. Providing exceptional sealing performance in highly toxic, corrosive, high temperature and/or high-pressure environments, a metal bellows design can be the optimal solution to solve the most difficult sealing challenges. The bellows function as the secondary seal, as the spring to hold the primary seal against the mating ring, and as the anti-rotational lock. Only the most complex and demanding applications require a bellows seal’s high performance and reliability.
Features & Benefits
Benefits:
- Enables high chemical resistance
- No dynamic O-ring required, eliminating the possibility of hang-ups or compatibility issues
- Hydraulically balanced metal bellows allow the seal to handle more pressure without heat buildup
- Can fit into same space as existing face seals
- Moderate operating lengths with compact construction
Features:
- Can utilize either an O-ring on the outer diameter in a slip fit application, or can be designed to press-fit into the seal bore of your unit
- Unbalanced or balanced designs
- Seal designs incorporate seal face material grades to encompass a wide range of applications, including high-pressure velocity (PV) or extreme vibration applications
Product Applications
Ideal For:
- Extremely high-temperature fuel, oils and gases
- Extremely low temperatures such as liquid oxygen refrigeration systems
- Examples include aircraft engines and rocket propulsion systems
Specifications
| Rubbing Speeds | Temperature | Pressure | Primary Face Materials |
|---|---|---|---|
| To 50,000 FPM (254 m/s) | -65°F (-54°C) to over 1,000°F (537°C) | Full vacuum to 100 PSID (689 kPa) |
Carbon
Bronze
Silicon Carbide
Tungsten Carbide
|
