Gas Dosing / Leak Valves

A gas dosing valve precisely controls gas flow into a vacuum chamber, essential for maintaining safe usage in applications like semiconductor production. These valves can automatically shut or close without losing the set gas flow, preventing leaks during operation. They also help regulate gas lines, ensuring safe and consistent gas delivery.

VAT provides various types of gas dosing and leak valves, including coarse and fine dosing models. For example, the 21.1 series gas dosing valves offer excellent control and safety features. UHV leak valves, like the 59.0/ 59.1 UHV All-Metal Variable Leak Valve, handle more extreme conditions, making them ideal for applications that require safe, reliable operation under the rigors of ultra-high vacuum environments. Ball valves and plug valves may also be used in different types of gas flow regulation systems.

High-performance or UHV leak valves should be used when there is a need for extreme precision in controlling gas flow, particularly in sensitive or safety-critical systems. For example, in propane or other gas applications involving flammable gases, leak valves can help prevent leaks and mitigate the risk of fires or explosions. UHV valves are also used to automatically close in the event of an emergency, ensuring system integrity and safety.

When selecting a gas dosing or leak valve, it’s essential to consider factors like flow rate, valve size, and material compatibility. For instance, some gas dosing valves are equipped with features to automatically shut and maintain safe operation over extended periods. Stainless steel materials may be preferred for durability. The valve’s ability to handle high gas pressures and prevent leaks is critical for ensuring both safety and system performance. Other considerations include installation requirements and ensuring the valve is in good working order to avoid potential system damage.

VAT gas dosing and leak valves are known for their key features, including precise flow control, durability, and safe usage in a variety of industrial applications. These valves are built to withstand the rigors of demanding environments, ensuring safe operation while minimizing wear and tear. Their ability to close securely while maintaining the gas flow setting makes them reliable in preventing leaks and ensuring operational safety.

In ultra-high vacuum applications, certain valve types offer all-metal sealing, bake-out capability, and are available in manual or electrically actuated versions.