RV03/04 series volume type heat exchanger is a new patent from the Ministry of Construction Design Institute of the introduction, it use the successful experience of "RV-02" double bundle volume type heat exchanger series, overcome the old products of steel consumption, and launched on the equipment room and demanding specifications less, with the disadvantage of limitations such as a new generation of volumetric heat exchanger, after thermal power station electrical performance testing center of North China were determined, and the thermal performance is far more than other similar products, is currently the most ideal unit of hot water and sensible heat exchange equipment