Vacuum Value

High Vacuum Manual Bellows Sealed Angle Valve for Laboratory and Industrial Use

High Vacuum Manual Bellows Sealed Angle Valve for Laboratory and Industrial Use

This high-performance manual bellows-sealed angle valve is engineered for small-to-medium high vacuum systems. Utilizing high-pressure die-casting for superior density and bellows sealing for zero-leakage performance, it offers exceptional stability and durability. Available in aluminum or stainless steel with standard ISO-KF and ISO-K flange options, it is the ideal solution for precise manual control in research labs, semiconductor tools, and analytical instrumentation.

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Product Details

This high-performance High Vacuum Manual Flapper Valve is a versatile vacuum isolation component specifically designed for small to medium-sized high vacuum systems, laboratory/pilot plant conditions, and manual operation scenarios. Utilizing a high-pressure vacuum die-cast angle structure, it is suitable for the full range from high vacuum to atmospheric pressure (5×10⁻⁸ Pa to 1×10⁵ Pa). It enables precise manual sealing, isolation, and flow control for vacuum pipelines and chambers.

The equipment boasts core advantages such as high-density die-casting, stable dynamic balance, dual-material adaptability, and bellows sealing. It is widely used in scientific research laboratories, small-scale vacuum system setups, analytical instruments, and semiconductor micro-vacuum systems, serving as a standard core valve for reliable manual isolation.

Core Features

High-Density Die-Casting Structure: Manufactured using high-pressure vacuum die-casting technology, ensuring high density, superior strength, and a sleek, compact design that guarantees airtightness and structural stability.
Dual-Material Adaptability: Available in both Aluminum Alloy and Stainless Steel. Aluminum alloy offers lightweight, corrosion resistance, and low outgassing for clean high-vacuum environments, while stainless steel provides excellent resistance to corrosion and high temperatures for harsh process environments.
High-Reliability Bellows Sealing: Features a bellows-sealed structure that is leak-free and particle-free. This superior sealing performance meets the rigorous requirements of high vacuum systems and is suitable for bakeable and high-cleanliness applications.
Full Compatibility with Standard Flanges: Equipped with standard ISO-KF flange (DN25~50) and ISO-K (DN60~250) connections, making it compatible with various small and medium vacuum lines and chambers for easy installation.
Precise Manual Control: The manual drive mode offers flexible operation and precise positioning, ideal for laboratory and small-scale vacuum devices where manual intervention and flow adjustment are required.
Stable Dynamic Balance & Long Service Life: The overall design ensures stable dynamic balance, smooth opening/closing without vibration, and long-term stable operation in demanding vacuum environments.

Product Specifications

Bore Size	Flange Type	Main Material	Actuator	Example Model
DN25~50	ISO-KF	Aluminum Alloy	Manual with Bellows	VAvat-B3144-11-B-DN25~50
DN25~50	ISO-KF	Stainless Steel	Manual with Bellows	VAvat-B3144-12-B-DN25~50
DN60~250	ISO-K	Aluminum Alloy	Manual with Bellows	VAvat-B3144-11-B-DN60~160
DN60~250	ISO-K	Stainless Steel	Manual with Bellows	VAvat-B3144-12-B-DN60~160

Application Fields

1. Small/Medium High Vacuum Isolation: Used for manual isolation and on-off control in general-purpose laboratory and small-scale vacuum devices.

2. Scientific Research Labs: Ideal for university and research institute experimental setups, material analysis equipment, and vacuum chamber isolation where manual operation is preferred.

3. Semiconductor Micro-Systems: Suitable for micro-process chambers and analytical detection equipment requiring high cleanliness and zero particle contamination.

4. Vacuum Analytical Instruments: Provides reliable isolation for mass spectrometers, leak detectors, and small vacuum furnaces with compact piping layouts.

5. Small Industrial Vacuum Equipment: Applied in small-scale industrial vacuum equipment, coating machines, and vacuum ovens for high-vacuum manual isolation.

Why Choose Our High Vacuum Manual Flapper Valve?

This valve is the ideal choice for manual operations in high vacuum environments. Its core strength lies in the combination of high-pressure die-casting + dual material options + bellows sealing + dynamic stability. Compared to standard manual valves, it is optimized for high vacuum, offering better balance and more reliable sealing.

High Density & Durability: The vacuum die-casting process ensures a dense structure and aesthetic appeal. Whether you choose aluminum or stainless steel, the valve is built for a long service life in high vacuum conditions.

Smooth Operation: The dynamic balance ensures that manual opening and closing are smooth, vibration-free, and impact-free, protecting the stability of your vacuum system.

Zero Leakage: The bellows seal ensures no leakage and no particle generation, meeting the strictest cleanliness standards for bakeable systems.

Frequently Asked Questions (FAQ)

1. What is the primary use of this valve?

It is primarily used for manual isolation and flow control in small to medium high vacuum systems, particularly in labs and small-scale industrial setups.

2. Which material should I choose?

Aluminum alloy is recommended for lightweight and standard high vacuum needs. Stainless steel is preferred for corrosive or high-temperature environments.

3. What makes the sealing reliable?

The use of a high-quality bellows seal ensures a hermetic, particle-free barrier, which is essential for maintaining high vacuum integrity.

4. Is it compatible with my existing system?

Yes, with standard ISO-KF and ISO-K flange options, it integrates seamlessly with most international standard vacuum piping.

Conclusion: The High Vacuum Manual Flapper Valve is Suitable for laboratory research, pilot plants, and small-scale industrial vacuum systems. The core advantage is its high-density vacuum die-cast structure combined with reliable bellows sealing and dual-material flexibility for diverse environments.

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