Vacuum Isolation Valve

The Vacuum Isolation Valve is a specialized valve designed to separate vacuum systems from atmospheric pressure or other pipeline sections, preventing air infiltration and maintaining the integrity of the vacuum environment. Adopting a casting and forging structure, our valves feature a parallel dual-seal pair semi-forced bidirectional seal, realizing zero leakage through the step-by-step action of the sealing surface positioning movement and wedge quick wedging movement. With excellent airtightness, easy operation, and durable construction, it is an indispensable part of any vacuum system that requires strict isolation and control.

We offer multiple configurations to meet diverse application needs, including flange and welding connection types, as well as manual and electric drive modes, ensuring flexible adaptation to different installation scenarios and operational requirements. Our valves are manufactured in strict accordance with international technical standards, guaranteeing consistent quality and compatibility with global industrial equipment.

1.Zero Leakage Sealing : Equipped with a vacuum sealing structure in the valve cover packing chamber, which has a self-expanding and compressing effect. All joint surfaces are sealed with high-strength expansion materials to completely isolate the system from the atmosphere, achieving excellent airtightness and zero leakage performance, effectively protecting the vacuum environment from contamination.

2.Durable & Wear-Resistant : The main body adopts a high-quality casting and forging structure, with strong structural stability and long service life (up to 10 years or more). The sealing surface has a small movement friction force, enabling light opening and closing, and is equipped with an automatic wear compensation function, reducing maintenance frequency and extending the service life of the valve.

3.Flexible Configuration : Available in two connection forms (flange and welding) and two drive modes (manual and electric), suitable for different pipeline sizes and operational needs. It can be customized according to specific working conditions, such as high-temperature resistance, corrosion resistance, and special flange standards.

4.Easy Installation & Maintenance : The structure is simple and compact, with a reasonable design that facilitates on-site installation and disassembly. Routine maintenance only requires simple inspection and replacement of wearing parts, reducing downtime and operational costs for your equipment.

5.Wide Temperature Adaptability : Suitable for working temperatures up to 425°C or 550°C (depending on the model), compatible with working media such as water, steam, and air, and can adapt to harsh working environments such as high temperature and vacuum negative pressure.

6.Compliance with International Standards : Manufacture and acceptance technical conditions comply with GB/T12234 and GB/T12235, valve structure length complies with GB/T12221, and flange size complies with JB/T78-79 and GB/T9112-9124, ensuring compatibility with global industrial equipment and easy integration into existing systems.

- Power Plants : Particularly suitable for steam turbine condensation and vacuum negative pressure systems, playing a role in vacuum isolation and sealing to ensure the stable operation of power generation equipment.

- Semiconductor & Electronics : Used in vacuum chambers, thin-film coating, and semiconductor manufacturing processes to maintain a clean vacuum environment and prevent air contamination, ensuring product quality.

- Chemical & Pharmaceutical Industry : Suitable for vacuum distillation, drying, and reaction processes, isolating corrosive media and ensuring the safety and stability of the production process. Corrosion-resistant configurations are available for harsh chemical environments.

- Scientific Research : Applied in laboratory vacuum systems, particle accelerators, and vacuum testing equipment, providing reliable vacuum isolation for scientific experiments and research work.

- Other Industries : Also used in food and beverage vacuum packaging, vacuum metallurgy, and other fields, meeting the diverse vacuum isolation needs of different industries.

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