Solarwarmwasserbereiter

. 1.The evecuated tube is made of the borosilicate glass with the selective absorbing layer of the AL-N , which can be against the hailstone and has the high thermal efficiency. all-glass evacuated tube: vacuum degree:5*10-3Pa, seleclive magnetism film, high absorption rate (α>94%) and low emittance rale (ε<6%) ,Stagnation parameter 330°C. 2.The inner tank is made of the imported sus304-2B stainless steel.The materials of the outer tank is the imported sus 304-2B,BA stainless steel or colored steel plate. 3.The materials of the frame is the imported stainless steel or colored steel frame .Square frame and coated zinc frame are renewable, strong and against the erosion .For frame angle it is against strong winds, fils sunlight and all kinds of temperature. 4.Imported polyurethane has the good insulating effect and keeps the constant temperature for tow days. 5.Silicate circle has a long life against the erosion and harm to the healthy. 6.Accessories:Automatic valve, Expansion vessel, digital controller,Auxiliary electric heater.