Negative pressure fan is a synonym, with negative pressure for exhaust and positive pressure for exhaust. Negative pressure fans are widely used in areas such as factory ventilation and greenhouse aquaculture, with excellent results. The advantages and disadvantages of negative pressure fans include the size of exhaust air volume, sound level, energy consumption, and service life.

Recently, the market for wind turbine models was uneven, and the market prices were also very chaotic; This mainly includes traditional white iron sheet fans, fiberglass shell three leaf fans, and other categories, with different specifications, technical parameters, and production materials from each household. However, generally speaking, the above two types of fans belong to traditional fans, most of which are used in greenhouses and animal husbandry.

Given that traditional white iron sheet fans have always had defects such as high equipment failure rates and increased customer maintenance costs. The three leaf fan with a fiberglass reinforced plastic shell also has a defect of particularly high sound exposure. In order to comprehensively improve the application of negative pressure fans in factory ventilation, our company is focusing on improving the direct connection transmission system, seven leaf and nine leaf negative pressure fans, which can effectively reduce noise and maintenance costs; Achieve characteristics such as high oil and air volume, low volume, high efficiency, and long service life. It can be said that the negative pressure fan is truly efficient in environmental protection.