FRP square cooling tower is an improved model on structure and technology from the traditional square FRP cooling tower. Every internal component is appropriately used. All parts and materials are rigidly checked and tested to make sure their service life and operation. Unique improved mechanized technology not only ensures the high quality of the cooling tower, but also effectively reduces the dead weight of the tower, making the BHD series endowed with advantages of small in size, light in weight, high efficient, long service life and stable operation. Equipped with frequency inverter, this series can automatically regulate the fan speed as the cooling water temperature changes under different temperature and load, which can save energy and lower noise. This function saves operation cost for the users