When installing suction fan, the fan side of the wall must be well sealed. Especially surrounding the fan can not have gaps. The best way to install suction fan is Hohhot farming fans, fan walls and windows near the surface of this all off, fans across the wall of windows and doors open culture fan, ensure airflow straight line flow. Suction fan installation is a very important project for the future use of suction fan effect is very large impact, must keep in mind throughout the process installation. Suction fan is the latest type of fan, are axial fans, because mainly used negative pressure ventilation cooling works called suction fan. Meaning breeding hens negative pressure ventilation fan cooling ventilation and cooling project includes two aspects, ventilation and cooling issues while addressing. Suction fan is also used in the field of environmental protection curtain positive pressure air conditioning, pressurized air, pressurized hair and so on. Suction fan with a bulky, oversized wind tunnel, large diameter fan, large exhaust volume, ultra-low-power, low-speed, low-noise characteristics. From the structure of the material suction fan is divided into square galvanized sheet steel and glass flared suction fan suction fan. All the market square galvanized sheet suction fan structure and technical parameters of the basic agreement, suction fan type classification will be described in detail. FRP flared suction fan belt from drive mode is divided into different style and straight junction, suction fan type classification will be described in detail. Aquaculture fan oxygen, temperature control equipment Qingzhou Minhua (certified), fan culture by the people of China Qingzhou temperature control equipment plant. Temperature Control Equipment Factory Qingzhou public Hua (www.minhuawenkong.com) is an industry leader in Shandong Weifang, fans, ventilation equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Qingzhou temperature control equipment in China and China leading the staff warmly welcome all inquiries negotiations, China and China Qingzhou temperature control equipment to create a better future.