SALE VacuumtubeΦ58*1800/Φ58*2100/Φ70*2000three-targetsvacuumtubeInnerTankSUS-304Stainlesssteel(Foodgrade,0.41mm)OuterTankSUS-304Stainlesssteel(0.31mm)/colorsteel(0.5mm)Tankdiameter460mmThermalinsulationlayerPolyurethanefoamPressureUnpressurizedCirculationtypeDirect/OpenloopConnectiontypeDirect-PlugHeatingsystemThermosyphon(Passive,absorbefficiencyover97%)InstallationFreestandingVolume65L/80L/95L/120L/145L/160L/190L/240LVacuumdegree10^-4IdlesunningpropertyparametersY≥210M^2·℃/KWWorkingconditionDailysolarenergy≥13Mj/m²Annualsolarenergy≥4200Mj/m²CertificationandwarrantyCE,ISO90015yearsSALE2Service & FAQ OurService1.InquiryResponse:YourInquirywillberepliedwithin24Hours2.SampleOrder:3--7Daysforsampleorder3.CandoOEMBasingonyourdetailedRequestFAQ
1.Q:Are you a manufacturer or a trade company?
We are a manufacturer, we have our own production line.
2.Q:Can you do OEM business?
Yes, we can do OEM business and we have over5years OEM experiences.
3.Q:Can you provide sample for quality reference?
Yes, we do provide samples for our customers.
4.Q:Do you have a quality warranty, how long it is?
Yes, we have a quality warranty for 5 years, we will provide 10 more tubes for each 1000 tubes order to make up the wastage. (quality warranty doesn’t contain damage from natural hazard and human factors.)