Mine Pressureless Balanced Air Door, Pneumatic Automatic Mine Ventilation Door for Coal Mine Tunnel

Product Introduction

Pressureless Balanced Air Door (also called no-pressure mine air door) is a key ventilation equipment widely used in underground coal mines, metal mine tunnels. It uses pressure balance structure, converts wind pressure acting on door into internal force. The opening force is very small, easy to open and close, effectively prevent air short circuit in roadway, guarantee stable underground ventilation.

Main Features

1. Pressure balance design, low opening force, stable operation.
2. Excellent sealing performance, low air leakage rate.
3. Multiple control modes: manual, pneumatic, infrared automatic, electric remote control.
4. Door panel material: steel plate, bamboo plywood, stainless steel optional.
5. Customizable size and structure according to site tunnel dimension.
6. With mechanical interlock function, two doors cannot open at the same time, meet mine safety standard.

Application

Used for connecting roadway between intake airway and return airway in coal mine / metal mine underground. Isolate airflow, prevent gas and fire spread, ensure mining safety.