There are various types of vacuum breaking valves, and according to different classification standards, there can be the following types:
Classification of opening and closing principles:
Pressure balanced vacuum breaking valve: This valve can automatically adjust according to the pressure changes in the system to maintain pressure balance.
Unbalanced vacuum breaking valve: In contrast to pressure balancing, it may not be completely balanced when the system pressure changes, but has specific opening and closing pressure settings.
Pneumatic mechanical vacuum breaking valve: Control the opening and closing of the valve through a pneumatic mechanism.
Self operated plate vacuum breaking valve: uses the pressure change of the fluid itself to drive the opening and closing of the valve.
Special vacuum breaking valve: a special type designed according to specific application requirements.
Classification of structure and function:
Atmospheric vacuum breaking valve: When the pressure inside the water supply pipeline is less than atmospheric pressure, it can introduce the atmosphere to break the vacuum.
Pressure type vacuum breaking valve: When the pressure in the water supply pipeline drops to a certain set pressure, the flow is first cut off, and when a vacuum is generated, it is introduced into the atmosphere to prevent siphon backflow.
Flexible hose vacuum breaking valve: a vacuum breaking valve specifically designed for connecting hoses at the outlet.
Material classification:
Brass vacuum breaking valve
Bronze vacuum breaking valve
Stainless steel vacuum breaking valve
The application range of vacuum breaking valves is wide, mainly including:
In the aerospace field, it is used in important equipment such as propulsion systems, oxygen systems, and fuel systems for spacecraft and aircraft to ensure stable and safe operation of the equipment.
In the field of biomedicine, it is used in bioreactors and separation equipment to prevent excessive bubbles and bloating, ensuring the balance and stability of experimental and production processes.
Electronic device manufacturing: In the process of electronic device manufacturing, it is used to quickly discharge harmful gases, ensuring production quality and product performance.
Water supply and drainage system: used to automatically eliminate the vacuum degree inside the pipeline, prevent siphon backflow, and protect the water quality safety of the drinking water system.
Fire protection system: Inhale air in a timely manner when negative pressure is formed in the system to protect system equipment from damage.
Steam heat exchange equipment: automatically opens when the vacuum in the system reaches a certain value, introducing air or other fluids to eliminate the vacuum inside the equipment and prevent equipment damage.
Overall, there are various types of vacuum breaking valves, and suitable types can be selected based on specific application scenarios and needs. Meanwhile, due to its advantages of simple structure, reliable performance, quick action, and convenient installation, it has been widely applied in various fields.