- Mechanical Bellows Seal Valve
Falcon Flow Control Mechanical Bellows Seal Valve
Valves equipped with mechanical bellows seals designed to provide superior sealing performance by combining flexible metal bellows with mechanical sealing elements, ideal for demanding industrial applications.
Full Description
The Falcon Flow Control Mechanical Bellows Seal Valve integrates a metal bellows seal with an additional mechanical sealing mechanism, offering enhanced sealing reliability for valve stems in critical process environments. The flexible metal bellows ensures a hermetic barrier against leakage, while the mechanical seal element provides additional protection against fugitive emissions.
This dual sealing system is engineered to operate under high pressure, extreme temperatures, and corrosive media, making it suitable for petrochemical, chemical, power generation, and pharmaceutical industries. The mechanical bellows seal valve significantly reduces maintenance needs and environmental impact by eliminating traditional packing materials and ensuring long-lasting, leak-tight operation.
Constructed from high-quality stainless steel and alloy materials, Falcon’s mechanical bellows seal valves offer exceptional resistance to fatigue, corrosion, and thermal cycling.
Features & Benefits
Combination of bellows and mechanical seal
Superior leak-tight performance and redundancy
Flexible metal bellows
Hermetic sealing with excellent fatigue resistance
Robust mechanical sealing element
Added protection against fugitive emissions
High corrosion and temperature resistance
Suitable for harsh chemical and thermal environments
Reduced maintenance requirements
Lower operational costs and downtime
Environmentally compliant
Meets stringent regulations on emissions
Customization Options
- Custom alloy selections for extreme environments
- Tailored bellows and mechanical seal designs for specific valve types
- Integration with actuator systems
Application Segments
Petrochemical and refining plants
Power generation
Chemical processing
Pharmaceutical manufacturing
Critical valve applications requiring high safety and reliability
Product Line
Falcon Flow Control MechBell Series
Advanced Mechanical Bellows Seal Valves for Enhanced Sealing and Durability
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
- Bellows: Stainless Steel 304/316, Inconel 625
- Mechanical Seal: Carbon Steel, Stainless Steel
- Valve Body: Carbon Steel, Stainless Steel, Alloy Steel
Standard Connections
- Flanged (RF, RTJ)
- Butt Weld Ends
- Threaded Ends
Design Standards
- API 622 – Metal Bellows Seals for Valve Applications
- ASME B16.34 – Valve Pressure Ratings and End Connections
- ISO 15848 – Fugitive Emissions Testing
Testing Procedures
- Helium leak detection tests
- Pressure cycling endurance testing
- Corrosion and material compatibility assessments