The working principle and importance of the Globe Valve for subway

The Globe Valve for subway is a device used to protect the safety of the pressure system. Its main function is to release the pressure to prevent the system from overloading or exploding when the pressure exceeds a certain set value. In the subway system, the Globe Valve is usually installed in key locations, such as train carriages, vehicles, track systems, etc., to ensure the safe operation of the system. The working principle is based on the pressure control principle. When the pressure inside the subway system exceeds the set value, the Globe Valve will automatically open and release some gas or liquid to relieve the pressure and avoid system overload. The Globe Valve is usually composed of a spring and a sealing valve. The spring is a key component for setting the pressure value. When the pressure exceeds the set value, the spring will release the sealing valve to allow the medium to flow out until the pressure returns to the normal range.

1. Protect system safety: As a large-scale public transportation system, the subway system carries a large number of passengers. The existence of the Globe Valve can effectively protect the safety of the system and prevent accidents caused by abnormal pressure. 2. Prevent pressure overload: There may be a sudden increase in pressure in the subway system. The Globe Valve can release the pressure in time to keep the system running normally.

3. Enhance system stability: By setting and adjusting the Globe Valve, the pressure inside the subway system can be effectively controlled, and the system's operating stability and reliability can be improved.

4. Rail vehicles: Metro train cars and vehicles are usually equipped with Universal Valve to ensure passenger safety.

5. Rail system: Universal Valve are also installed in the subway rail system to control the gas or liquid pressure inside the rail pipeline.

6. Station facilities: Universal Valve are also required in the heating, ventilation and other systems of subway stations to protect the safe operation of the system.

7. Emergency: When an emergency occurs in the subway system, the Globe Valve can play a role to ensure that the pressure inside the system will not be overloaded and cause an accident.