AsalAra Welded Bellows Seal Valve – High-Integrity Stem Sealing Solution
Valves equipped with welded metal bellows seals that provide a completely leak-tight barrier, ideal for critical applications requiring zero emissions and maximum operational safety.
AsalAra Welded Bellows Seal Valve – High-Integrity Stem Sealing Solution
Valves equipped with welded metal bellows seals that provide a completely leak-tight barrier, ideal for critical applications requiring zero emissions and maximum operational safety.
The AsalAra Welded Bellows Seal Valve features a precision-manufactured metal bellows hermetically welded between the valve stem and bonnet, creating an absolute seal that prevents any leakage of fluids or gases.
This design eliminates the need for traditional packing materials, thereby eradicating fugitive emissions and minimizing maintenance. The welded bellows seal is engineered for use in the most demanding environments, including hazardous, toxic, and high-purity fluid services.
Manufactured with high-performance alloys such as stainless steel or Inconel, the bellows provides excellent resistance to corrosion, high pressure, and extreme temperatures. These valves are widely used in petrochemical, chemical, nuclear, and pharmaceutical industries where safety and environmental protection are critical.
Key Differentiator
AsalAra Welded Bellows Seal Valves provide a gold standard solution for critical sealing applications, ensuring absolute containment of fluids and gases while delivering superior reliability and environmental compliance.
Size Range
Valve Size (inch/mm)
½" (15 mm) to 24" (600 mm)
Range
Custom sizes available
Pressure Class
Standard
ASME B16.34
Pressure Rating
Class 150 to 900
Materials
Component
Material Options
Bellows
Stainless Steel 304/316, Inconel 625, Alloy 20
Valve Body
Carbon Steel, Stainless Steel, Alloy Steel
Standard Connections
- Flanged (RF, RTJ)
- Butt Weld Ends
- Threaded Ends
Product Line
AsalAra Belloseal Weld Series – Premium Welded Bellows Seal Valves for Zero Leakage Performance
Design Standards
- API 622 – Metal Bellows Stem Seals
- ASME B16.34 – Valve Pressure Ratings and Flanged Ends
- ISO 15848 – Fugitive Emissions Testing
Testing Procedures
- Helium mass spectrometer leak detection
- Pressure cycle endurance testing
- Corrosion resistance and material verification
Customization Options
- Alloy selection for extreme corrosive service
- Custom bellows design for specific valve configurations
- Integration with pneumatic or electric actuators
Feature
Benefit
Fully welded metal bellows seal
Absolute hermetic sealing, zero emissions
High corrosion and temperature resistance
Suitable for aggressive and extreme environments
Maintenance-free sealing system
Reduced downtime and maintenance costs
Eliminates packing gland leakage
Environmental compliance and enhanced safety
Robust construction
Long service life and high reliability
Suitable for hazardous fluids
Protects operators and environment from toxic leaks
- Nuclear power plants
- Petrochemical and refining industries
- Chemical processing plants
- Pharmaceutical manufacturing
- High-purity fluid systems
The AsalAra Welded Bellows Seal Valve features a precision-manufactured metal bellows hermetically welded between the valve stem and bonnet, creating an absolute seal that prevents any leakage of fluids or gases.
This design eliminates the need for traditional packing materials, thereby eradicating fugitive emissions and minimizing maintenance. The welded bellows seal is engineered for use in the most demanding environments, including hazardous, toxic, and high-purity fluid services.
Manufactured with high-performance alloys such as stainless steel or Inconel, the bellows provides excellent resistance to corrosion, high pressure, and extreme temperatures. These valves are widely used in petrochemical, chemical, nuclear, and pharmaceutical industries where safety and environmental protection are critical.
Key Differentiator
AsalAra Welded Bellows Seal Valves provide a gold standard solution for critical sealing applications, ensuring absolute containment of fluids and gases while delivering superior reliability and environmental compliance.
Size Range
Valve Size (inch/mm)
Range
½" (15 mm) to 24" (600 mm)
Custom sizes available
Pressure Class
Standard
Pressure Rating
ASME B16.34
Class 150 to 900
Materials
Component
Material Options
Bellows
Stainless Steel 304/316, Inconel 625, Alloy 20
Valve Body
Carbon Steel, Stainless Steel, Alloy Steel
Standard Connections
- Flanged (RF, RTJ)
- Butt Weld Ends
- Threaded Ends
Product Line
AsalAra Belloseal Weld Series – Premium Welded Bellows Seal Valves for Zero Leakage Performance
Design Standards
- API 622 – Metal Bellows Stem Seals
- ASME B16.34 – Valve Pressure Ratings and Flanged Ends
- ISO 15848 – Fugitive Emissions Testing
Testing Procedures
- Helium mass spectrometer leak detection
- Pressure cycle endurance testing
- Corrosion resistance and material verification
Customization Options
- Alloy selection for extreme corrosive service
- Custom bellows design for specific valve configurations
- Integration with pneumatic or electric actuators
Feature
Benefit
Fully welded metal bellows seal
Absolute hermetic sealing, zero emissions
High corrosion and temperature resistance
Suitable for aggressive and extreme environments
Maintenance-free sealing system
Reduced downtime and maintenance costs
Eliminates packing gland leakage
Environmental compliance and enhanced safety
Robust construction
Long service life and high reliability
Suitable for hazardous fluids
Protects operators and environment from toxic leaks
- Nuclear power plants
- Petrochemical and refining industries
- Chemical processing plants
- Pharmaceutical manufacturing
- High-purity fluid systems