Selection principle and steps of pneumatic ball valve
DBV selected the F304 pneumatic ball valve shall meet the following basic principles:Petrochemical, power station, metallurgy and other industries require continuous, stable and long-term operation. Therefore, it is required that the pneumatic ball valve shall have high reliability and high safety factor, and shall not cause major production safety and personal casualty accidents due to the failure of the pneumatic ball valve, so as to meet the requirements of long-term operation of the device.
The pneumatic ball valve shall meet the requirements of using medium, working pressure, working temperature and purpose, which is also the basic requirement for the selection of pneumatic ball valve. If pneumatic ball valve is required to protect against overpressure and discharge excess media, safety valve and overflow valve shall be selected.
The selection steps of pneumatic ball valve generally follow the following steps:
1. Determine the working condition of pneumatic ball valve according to the purpose of pneumatic ball valve in device or process pipeline. For example, working medium, working pressure and working temperature.
2. Determine the sealing performance grade of pneumatic ball valve according to the working medium, working environment and user requirements.
3. Determine the type and driving mode of pneumatic ball valve according to the purpose of pneumatic ball valve. Types such as block valves, regulating valves, safety valves, other special valves, etc. Driving modes such as worm gear, electric, pneumatic, etc.
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