Bellows sealed globe valves are emission-free and maintenance-free. A continuous metal barrier is located between the pipeline and the environment. Components that undergo relative movements during valve operation are welded to the ends of a metal bellows that absorbs and compensates for movement. Therefore, these valves are suitable for any fluid and are recommended when zero emission performance is required to protect the environment and workers' health from contaminating leaks, to prevent costly waste due to wasted energy and fluid, and to eliminate significant costs. replacement of packaging. In conclusion, the valves are especially suited for hazardous, flammable, deadly and explosive environments.