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.