AsalAra Multi-Ply Bellows Seal Valve
- Multi-Ply Bellows Seal Valve
The AsalAra Multi-Ply Bellows Seal Valve is engineered with multiple layers (plies) of thin metal bellows welded together, creating a robust and highly flexible sealing element that provides exceptional stem sealing performance.
The multi-ply bellows design significantly enhances flexibility, allowing the valve stem to operate smoothly while maintaining a hermetic seal that prevents fugitive emissions and fluid leakage. This construction also offers improved resistance to fatigue and mechanical stresses compared to single-ply bellows, making these valves suitable for frequent operation cycles and harsh process environments.
Manufactured from premium alloys such as stainless steel and Inconel, these valves are designed to withstand high pressure, extreme temperatures, and corrosive media, making them ideal for critical applications in petrochemical, chemical, pharmaceutical, and power industries.
Valve Size (inch/mm)
Range
½" (15 mm) to 24" (600 mm)
Custom sizes available
Standard
Pressure Rating
ASME B16.34
Class 150 to 900
- Bellows: Multi-layer Stainless Steel 304/316, Inconel 625
- Valve Body: Carbon Steel, Stainless Steel, Alloy Steel
- Flanged (RF, RTJ)
- Butt Weld Ends
- Threaded Ends
AsalAra MultiPlySeal Series
Multi-Ply Bellows Seal Valves for High Performance and Reliability
Multiple thin metal bellows plies
Enhanced flexibility and fatigue resistance
Hermetic sealing
Zero leakage and environmental compliance
High durability and mechanical strength
Suitable for frequent cycling and demanding applications
High resistance to corrosion and temperature
Long service life in harsh environments
Maintenance-free operation
Reduced downtime and operational costs
Elimination of packing gland leakage
Meets stringent emission control regulations
Petrochemical and refining industries
Chemical processing plants
Pharmaceutical manufacturing
Power generation
High-cycle valve operations in critical process lines
- API 622 – Metal Bellows Seals
- ASME B16.34 – Valve Pressure Ratings and End Connections
- ISO 15848 – Fugitive Emissions Testing
- Helium leak detection testing
- Pressure cycling endurance testing
- Corrosion resistance and material validation
- Alloy and ply count customization for specific application needs
- Special bellows geometry for optimized flexibility
- Integration with automated actuators
AsalAra Multi-Ply Bellows Seal Valves combine the resilience of multi-layer bellows with premium materials to deliver outstanding sealing reliability, superior fatigue resistance, and compliance with the most stringent environmental standards.