U tube type high pressure feedwater heater has three heat transfer zone, including superheat zone, condensing zone and drain cooling zone. HP heater uses hemispherical channel with auto sealing elliptical manway, and adopts one fixed and one sliding support.

We have matured and reliable experience in designing and manufacturing high-pressure heaters. Moreover, SAP owns a number of patented technologies. The mechanical analysis is done for high-parameter and large-scale heat-exchange equipment to optimize the structure of the products and to eliminate the hidden security trouble. What's more, we have proven manufacturing processes and non-destructive testing technology.

According to the annual power reliability report released by power reliability management center of the China Electric Power Enterprise Federation: the operating factor of SAP products is the highest in the industry; the unplanned outage rate of SAP products is the lowest in the industry; the product quality is safe and reliable. As one of the dominated manufacturers in designing and manufacturing the auxiliary equipment of thermal and nuclear power units, occupies more than half of the domestic market share of high-pressure heaters.