In traditional central air-conditioning systems, the supply and distribution system of cooling water, chilled water and hot water consumes 1/3 of the whole system's energy. To correct this apparently unreasonable phenomenon, BROAD has pioneered and improved packaged pumping distribution system which saves an average of 75% energy consumption instantly. Simultaneously, the reliability and quality control of the pumping distribution system has been raised to the same level as that of BROAD chiller.This incredible energy saving miracle is indeed not mysterious, it's attributed to the “zero-resistance filter”and“optimal variable flow intelligent control technology”BROAD has invented. Another BROAD industrial research solution for the 21^st century, to replace “inefficient methods of field erected systems” with high quality factory production and low energy engineered systems for our customers.