As the state upgrades the standard for the dust emission concentration in the power industry, the application of high-dusting efficiency bag dusters in the power industry has been popularized extensively.
   Of the bag dusters used in the power plant at present, the long-arm cyclotron tube nozzle bag dusters are popular with the users of the power industry for its suitability for handling dusty gas of big air volume, fewer maintenance for pulse valves, big blowing volume, lower pressure and less energy and show vast potential for development. Among other things, the heart component of the deashing system —electromagnetic pulse valve is usually a big valve of 8 inches imported abroad whereas the aperture of home-made valves is mostly below 3 inches，which fails to meet the requirement for a big blowing volume.
   In order to cater to the needs for fast-growing environmental protection industry, research workers of our company have developed electromagnetic pulse valves of 8, 10, 12 and 14 inches through relentless efforts. Tests show their performance indicators have reached advanced world level and can replace imports. Orders are welcome.