A KUG58 separate pressurized solarenergy heater is mainly combined by pressurized solar collector,pressurizedwater tank,solar working station,controller and installation parts. Pressurized solar collector features: 1)Vacuum tube: Heat Pipe vacuum tube, 58x1800mm in length with 14mm or 24mm condenser. 2)Inner material of mainfold: Copper runner 3)Outer material of mainfold: Aluminum 4)Frame material: Aluminum(for flat roof or slope roof) 5)Available sizes: 10, 15, 18, 20, 25, 30, 36, 2X15, 2X20, 2X25, 2X30 tubes Pressurizedwater tank features: Inner tank: Stainless steel 304 food grade Outer tank: Galvanized steel with power painting or stainless steel, we can make according to your required material. Available sizes:80L,100L,150L,200L,250L,300L,400L,500L,600L. Pressurized water tank technical data: ModelInner tank materials &thickness SUS304(mm)Insulation thickness (mm)Cover size(mm)Shade size(mm)80L1.0/370500.80/4700.6*470X812100L1.0/370500.80/4700.6*470X982150L1.0/370500.80/4700.6*470X1440200L1.5/470500.80/5550.6*555X1255250L1.5/470500.80/5550.6*555X1588300L1.5/470500.80/5550.6*555X1820400L2.0/600500.80/7000.6*700X1487500L2.0/600500.80/7000.6*700X1840600L2.0/600500.80/7000.6*700X2130 Working principle: 1) When the temperature of the solar heat collector and water tank reaches the set value, the controller shall make the circulation pump works automatically. 2) Heat-conducting liquid starts to circulate automatically by the circulation pump. 3) The heat exchanger makes the heat-conducting liquid transfers heat to water in the tank. 4)The circulation pump shall be shut automatically, if discrepant temperature of the collector and the water tank does not reach the set value. 5)In case the temperature of the water tank does not reach TM ax, then starts the auxiliary heating device.