Non pressure air door function Non pressure air door manufacturer

Description :

　　Non pressure dampers (pressure balanced dampers) are mainly used in each connecting roadway between the underground intake and return airways and the main intake and return airway in mines, and are currently a substitute for all dampers.

　　This air door is currently an ideal type of air door in coal mines in China, mainly used in each connecting roadway between the intake and return air ducts and the main intake and return air ducts. It breaks the traditional structure of air doors that have been used for a long time, cleverly converting the wind pressure acting on the air door into an internal force through a balanced structure, fully demonstrating the unique structure, simple use, safety and reliability of this air door. It has been highly praised by experts and users and is a substitute for the air doors currently used in these air ducts.

　　Main characteristics of non pressure air door

　　1. The opening force of the air door is small, and the opening force is independent of the wind pressure and direction;

　　2. Bidirectional air isolation with minimal air leakage, eliminating the need for a reverse air damper;

　　3. Steel structure, simple structure, sturdy and durable;

　　4. Close smoothly, safely and reliably;

　　5. Good fire resistance, can effectively prevent possible fires in belt conveyor tunnels, prevent fires and harmful gases from entering other tunnels;

　　6. The pressure balanced damper can be operated manually or by power. If an additional control system is added, the damper can be automatically opened;

　　7. The two air doors can be mutually locked. zmjt055

AfterSalesService :

• Non pressure air door