U Pipe Collector

In each vacuum tube there is a U pipe with direct flow-through that is connected to the header pipe inside manifold. This U pipe is seamed in an aluminum heat transfer fin in the interior of vacuum tube that transmits the heat from the interior tube to the U pipe. Solar radiation permeates the outer glass tube and is captured on the outside of inner glass tube by highly selective sputter layer. The captured solar radiation is transmitted to flush-contact aluminum shield and then copper pipe filled with heat transfer fluid. The 360°aluminum heat transfer fin assures the fastest energy transfer.   Model NameSPUManifold casing materialStainless steel / AluminiumFrame materialAnodized profiled aluminum bar or stainless steelHeader pipe materialCopperU pipe materialCopperU pipe diameter8mmNo. of pipes10,12,15,18,20,24,30Aperture areaFor 18tubes system 2.3m2InsulationpolyurethaneRubber seals and ringsUV stabilized high temperature silicon rubberTest pressure9 barCollector mountingFlat roof/inclined roofMounting angle30 degree-50 degreeInlet Outlet22mmGross weight70KG(for SPU-H58/1800-18)1. Borosilicate glass according to ISO3585: 1991; Transmittance of borosilicate glass: 0.92. Absorbance of solar selective absorptive coating: 0.94; Hemispherical emittance: 0.08; Getter according to GB/T9505-1998. 2. Start-up temperature: No more than 25Celsius. 3. Start-up time: No longer than 2 minutes under normal sunshine. 4. Low temperature resistance: No breaks at -30Celsius. 5. Heat impact resistance: No damage after over 3 time's alternative impact of cold water below 25Celsius and hot water over 90Celsius. 6. Pressure resistance: Can withstand 0.6Mpa. 7. Hail resistance: No damage by the impact of 25mm diameter hail. Our advantages:Our products process:  /* March 10, 2023 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1