Bellows valve for Ultra-High purity applications
What is a
bellows valve.
Benefits of Flowlink
bellows valve solutions.
Flowlink designs and manufactures valves for ultra-high purity environments, combining precision engineering with strict quality control. Our valves are made to work well under high temperature, pressure, and frequent use. They help ensure stable and clean operation in industries like semiconductor manufacturing, chemical processing, and high-purity gas distribution.
Hermetically sealed design
Each Flowlink bellows valve has a complete sealing design. This design stops any leakage of process media into the air. This design ensures maximum safety and purity, even in critical gas and chemical delivery systems.
zero stem leakage for UHP systems
Thanks to the metal bellows construction, Flowlink bellows valves eliminate stem leakage entirely. This makes them particularly suitable for UHP applications where even microscopic leaks can compromise process performance or safety.
Ideal for high-temperature UHP processes
Bellows valves are well suited for high-temperature applications where elastomer-based sealing solutions may degrade. Flowlink valve design maintain structural integrity and sealing performance under elevated temperatures and thermal cycling.
Long cycle life under demanding conditions
The robust metal bellows is engineered to withstand repeated actuations and pressure variations. This results in a long cycle life, reduced maintenance requirements, and reliable operation in continuous or high-cycle processes.
Complete traceability & customized documentation
Flowlink provides full material traceability and comprehensive documentation for each valve. Customized documentation packages, including material certificates and test reports, are available to meet customer and regulatory requirements.
Technical specifications of
bellows valve designs.
Flowlink valves are developed to meet strict UHP standards and can be adapted to specific process requirements. You can find full details of the valve specifications in our dedicated technical data sheets.
Materials
Bellows valves are made from high-quality stainless steel, like 316L. They have smooth surfaces to reduce particle buildup. All wetted materials are carefully selected for chemical compatibility and traceability.
Helium leak rate
Each valve is tested for strict helium leak rate standards. This confirms the seal’s integrity and meets ultra-high purity needs.
Temperature & Pressure ratings
Flowlink bellows valve designs work well in a wide range of temperatures. They are especially good for high-temperature UHP processes that need stable metal sealing.
These valves are designed for high-pressure use. They provide safe and reliable performance in tough gas and chemical delivery systems.
Options & accessories
Available options include manual or pneumatic actuation, position indicators, various connection types and customized configurations to integrate seamlessly into UHP systems.
High temperature, high pressure, hastelloy body for corrosive gases, position indicators for pneumatic operators, security locket for manual toggle, pneumatic fittings, etc.
Discover our full range of
bellows valve.
FLOWLINK offers a complete range of bellows valve solutions designed for ultra-high purity applications. From standard configurations to fully customized designs, our bellows valves are engineered to match your process conditions and performance requirements. Explore our product range below to identify the right solution for your UHP system.
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Available1/4 TURN BELLOWS VALVE
Ref:BQ3514BAB11111A....285,00 € -
Available2-WAYS BELLOWS VALVE 1/4″ NC
Ref:BC2114AA11111A195,00 € -
Available2-WAYS BELLOWS VALVE 1/4″ NO
Ref:BO2114AA11111A195,00 € -
Available
VANNE A SOUFFLET 1/4″ NO
Ref:BO2114BB11111A195,00 € -
Available
VANNE A SOUFFLET ¼ DE TOUR
Ref:BQ2114AA11111A195,00 € -
Available
VP 214 SW 6,35 NC
Ref:BC2114HH11111A270,00 €
All our ranges of
UHP valves.
Flowlink specializes in the design of standard or custom UHP valves :
- Diaphragm valves
- Bellows valves
- Metering valves
- manifolds
- Check valves
We also provides filters, accessories and fittings.
FAQ about
bellows valve.
Why is a bellows valve suitable for UHP applications ?
A bellows valve is suitable for UHP applications because the metal bellows provides a hermetic seal that completely isolates the process media from the valve stem and external environment. This design minimizes contamination, ensures safety, and supports stable long-term operation.
How does a bellows valve differ from a diaphragm valve ?
Bellows valves use a metal bellows to make a tight seal. In contrast, a diaphragm valve uses a flexible diaphragm. Bellows valves are typically better suited for high-temperature, high pressure, high flow applications and situations requiring zero stem leakage, whereas diaphragm valves often offer lower dead volume.