solar water heater

Evacuated tube: high quality borosilicate glass 3.3. CB47*1500 CB58*1800 Inner tank:SUS304/2B stainless steel Outer tank:Color steel Bracket ;stainless steel and aluminum Capacity:100L, 150L,200L,250L,300L Testing process: 1,a low temperature test: the low-temperature heat pipe into the water tank 70 º ± 1, one minute of testing the condensation temperature of ≥ 60 º. 2, high temperature test: Insert the aluminum wing heat pipe vacuum tube, with rock wool to wrap the condenser, placed under sunlight exposure, detection of a temperature ≥ 220 º. 3, high-temperature aging test: The heat pipe at a high temperature furnace to maintain 400 º, 48 hours after heating to keep out, natural cooling, into cold water tank. Detection of the condensation temperature change. 4, frozen test: ultra-low temperature freezing, minus 35 degrees, not donglie 5, all the test sequence, repeated 5-10 times, the heat pipe core with a helium leak detector testing the quality does not leak.,