Bellows for sealing globe valves
Cost: Bellows for sealing globe valves are significantly more expensive than standard packed valves due to the complex bellows assembly.
Bellows for sealing globe valves are used in：
- Pressure and Temperature Limits: The bellows is the limiting component. It has maximum pressure and temperature ratings that must not be exceeded.
- Stroke Length: The bellows design limits the maximum stroke of the valve, which can affect flow characteristics (Cv value).
- Bellows Fatigue: The bellows is a pressure-containing component that undergoes fatigue with each cycle. Its design life must be suitable for the application's required cycle count.
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