AsalAra Metal Bellows Stem Seal – Hermetic Sealing Solution for High-Performance Valves
A flexible, corrosion-resistant metal component designed to provide a hermetic seal around valve stems, eliminating leakage and protecting the environment in demanding industrial applications.
AsalAra Metal Bellows Stem Seal – Hermetic Sealing Solution for High-Performance Valves
A flexible, corrosion-resistant metal component designed to provide a hermetic seal around valve stems, eliminating leakage and protecting the environment in demanding industrial applications.
The AsalAra Metal Bellows Seal is engineered to offer a reliable, leak-tight sealing solution for valve stems in critical service environments. Manufactured from high-grade stainless steel or nickel alloys, the metal bellows is a convoluted, flexible tube that accommodates axial and lateral movement of the valve stem while maintaining a perfect hermetic seal.
This sealing technology eliminates the need for traditional packing, significantly reducing fugitive emissions and maintenance requirements. The bellows seal is ideal for applications involving toxic, hazardous, or high-purity fluids where environmental compliance and operational safety are paramount.
The metal bellows is designed to withstand high pressure, extreme temperatures, and corrosive media, making it suitable for petrochemical, power generation, pharmaceutical, and chemical industries.
Key Differentiator
AsalAra Metal Bellows Seals deliver unmatched hermetic sealing performance combining flexible, robust design with premium corrosion-resistant materials to ensure environmental safety and operational reliability in the most demanding industrial applications.
Size Range
Stem Diameter (mm)
10 mm – 150 mm
Range
Customized sizes available
Pressure Class
Standard
ASME B16.34
Pressure Rating
Class 150 to 600
Materials
Component
Material Options
Bellows
Stainless Steel 304/316, Inconel 625, Monel 400
End Fittings
Stainless Steel, Alloy Steel
Standard Connections
- Welded directly to valve stem and bonnet (per ASME, API standards)
- Flanged or threaded adapters as required
Product Line
AsalAra Belloseal Series – Advanced Metal Bellows Seals for Leak-Free Valve Operation
Design Standards
- API 622 – Metal Bellows Seals for Valve Applications
- ASME B16.34 – Valves Flanged, Threaded and Welding End
- ISO 15848 – Industrial valves – Measurement, test and qualification procedures for fugitive emissions
Testing Procedures
- Helium leak testing for hermetic integrity
- Pressure and cyclic endurance testing
- Corrosion and material compatibility tests
Customization Options
- Tailored bellows geometry for specific valve designs
- Choice of exotic alloys for highly corrosive environments
- Integration with actuator and valve assembly customization
Feature
Benefit
Hermetic sealing technology
Eliminates stem leakage and fugitive emissions
High flexibility and fatigue resistance
Accommodates valve stem movement and thermal expansion
Corrosion-resistant materials
Suitable for aggressive and corrosive media
Maintenance-free design
Reduces downtime and maintenance costs
High temperature and pressure rating
Reliable operation in extreme conditions
Eliminates need for traditional packing
Improves environmental compliance and operator safety
- Petrochemical and refining plants
- Power generation facilities
- Pharmaceutical and biotech industries
- Chemical processing
- Nuclear power and critical safety valves
The AsalAra Metal Bellows Seal is engineered to offer a reliable, leak-tight sealing solution for valve stems in critical service environments. Manufactured from high-grade stainless steel or nickel alloys, the metal bellows is a convoluted, flexible tube that accommodates axial and lateral movement of the valve stem while maintaining a perfect hermetic seal.
This sealing technology eliminates the need for traditional packing, significantly reducing fugitive emissions and maintenance requirements. The bellows seal is ideal for applications involving toxic, hazardous, or high-purity fluids where environmental compliance and operational safety are paramount.
The metal bellows is designed to withstand high pressure, extreme temperatures, and corrosive media, making it suitable for petrochemical, power generation, pharmaceutical, and chemical industries.
Key Differentiator
AsalAra Metal Bellows Seals deliver unmatched hermetic sealing performance combining flexible, robust design with premium corrosion-resistant materials to ensure environmental safety and operational reliability in the most demanding industrial applications.
Size Range
Stem Diameter (mm)
Range
10 mm – 150 mm
Customized sizes available
Pressure Class
Standard
Pressure Rating
ASME B16.34
Class 150 to 600
Materials
Component
Material Options
Bellows
Stainless Steel 304/316, Inconel 625, Monel 400
End Fittings
Stainless Steel, Alloy Steel
Standard Connections
- Welded directly to valve stem and bonnet (per ASME, API standards)
- Flanged or threaded adapters as required
Product Line
AsalAra Belloseal Series – Advanced Metal Bellows Seals for Leak-Free Valve Operation
Design Standards
- API 622 – Metal Bellows Seals for Valve Applications
- ASME B16.34 – Valves Flanged, Threaded and Welding End
- ISO 15848 – Industrial valves – Measurement, test and qualification procedures for fugitive emissions
Testing Procedures
- Helium leak testing for hermetic integrity
- Pressure and cyclic endurance testing
- Corrosion and material compatibility tests
Customization Options
- Tailored bellows geometry for specific valve designs
- Choice of exotic alloys for highly corrosive environments
- Integration with actuator and valve assembly customization
Feature
Benefit
Hermetic sealing technology
Eliminates stem leakage and fugitive emissions
High flexibility and fatigue resistance
Accommodates valve stem movement and thermal expansion
Corrosion-resistant materials
Suitable for aggressive and corrosive media
Maintenance-free design
Reduces downtime and maintenance costs
High temperature and pressure rating
Reliable operation in extreme conditions
Eliminates need for traditional packing
Improves environmental compliance and operator safety
- Petrochemical and refining plants
- Power generation facilities
- Pharmaceutical and biotech industries
- Chemical processing
- Nuclear power and critical safety valves