Mining gas explosion-proof electric butterfly valve is a valve designed specifically for flammable and explosive environments. It adopts an explosion-proof structure and complies with coal safety certification, suitable for scenarios such as coal mines and gas pipelines.
Explosion proof electric butterfly valve for mining gasintroduction
It is a valve designed specifically for flammable and explosive environments, with an explosion-proof structure and coal safety certification, suitable for scenarios such as coal mines and gas pipelines. The following are its core characteristics:
IIExplosion proof electric butterfly valve for mining gasExplosion proof performance
Explosion proof products comply with the GB3836.1-2000 standard, with an explosion-proof rating of d Ⅰ or d Ⅱ BT4. They are suitable for non mining working faces in coal mines and explosive gas mixture environments of T1~T4 groups in Class IIA and IIB factories.
The actuator adopts a fully enclosed squirrel cage motor with a built-in overheat protection switch to prevent motor damage caused by overheating.
Sealing and Material
Adopting soft sealing structure or metal hard sealing, the sealing ring is made of stainless steel material and has bidirectional sealing function, which can be installed in any direction.
The valve body material is ductile cast steel or cast iron, with strong corrosion resistance and a working temperature range of -40~80 ℃.
The switch only needs to rotate the valve stem 90 °, making it flexible to operate; The butterfly plate is made of welded cobalt based hard alloy, which has strong wear resistance and long service life.
Equipped with mechanical/electronic dual limit, reliable manual operation, and can be manually controlled in case of power failure.
Application scenarios
Mainly used for flow regulation and medium cutoff of industrial pipelines such as coal mine gas pipelines, petrochemicals, and power, supporting automation control (such as integration with DCS systems).
Mainly used in coal mine gas drainage systems, mine ventilation systems, mine water treatment systems, and fire protection systems to ensure safe production in mines.
Specific application scenarios
Gas drainage system: used to control gas emissions and prevent gas accumulation from causing explosions.
Mine ventilation system: regulate airflow to ensure that the mine air quality meets safety standards.
Mine water treatment: controlling the flow of water and fluid flow in the sewage treatment process.
Fire protection system: Quickly cut off or regulate water flow in the fire pipeline.
This valve remotely controls the rotation angle of the butterfly plate (0-90 ° or 0-180 °) through an electric actuator to achieve flow regulation or block fluid flow. Its explosion-proof design (explosion-proof level BT4) and bidirectional sealing function are suitable for flammable and explosive environments.