Factory Supply Attractive Price Compact Low Pressure Vacuum Tubes Solar Water Heater

   Solar Water HeaterTermo Termas Solares Calentadores Solar de agua Boiler Smart No Pressure Compact Solar Collectors Water Heater For Bathroom12000btu 18000Btu 48v Off Grid 100% Solar Air Conditioner With Dc Inverter Compressor For Home Use Energy Saving--------------------------------------Working principle:The vacuum tube absorbs sun energy and transfers heat to copper heat pipe inside vacuum tube.There is no water in vacuum tube.Then the copper heat pipe transfers heat to water in tank.It can beat high pressure and can resist -50ºC cold.Specialty:* High thermal performance and working temperature: the heat exchanging rate even in winter can up above 55%.* Heat collecting efficiency is at least 20% above common solar systems.* Work in all day and all season: no matter any corner of the world, this system can work well even -30ºC to avoid the tubefreezing problem.* Reliability: No water following through the tube, so water scale can not generate and tube cracks could be avoided, the systemstill can keep working even with some damaged tubes.* It can connect with water tap and work automatically with max pressure 0.6Mpa, bring enjoyable washing experience.* Safety: P/T valve would release pressure and temperature to protect tank.   Product ParametersNameSpecificationPJF -150LPJF -200LPJF -300LFlat plate collectorQuantity ( pc )112Collector dimension(mm)2000x1000x80mm2000x1250x80mm2000x1000x80mmHeader tube(mm)Φ22 x0.6mmRiser Tube(mm)Φ10*0.5mmIntegrated circulation PipeCorrugated PipeWeldingLaser weldingAbsorber coatingBlack CoatingInsulation materialFiber glass + polyester fiberMaterial3.2mm Low iron tempered textured glassThe rated pressure0.7MPaFrame colorSilver/BlackWater TankInsulationPolyurethane in 50mmInner tankFood grade stainless steel, SUS304-2B, 1.2mm thickness,,300L Water heater is 1.5mm inner tankThe rated pressure