Solar Energy Water Heater with Low Pressure, Available in Active and Passive Types

Model Number:150l--300l-1Brand Name:XIUJUNMOQ:200 SetsFOB Price: US$ 150 - US$ 800 FOB Port:ShanghaiLead Time: 10 - 30 days Payment Terms:Telegraphic Transfer (TT,T/T)Country of Origin:China (mainland)Key Specifications/Special FeaturesTwo basic types:Active systems utilize circulating pump and some type oftemperature controlPassive systems do not have any moving parts and rely on basicprinciple of physics hot water raised and cold water fallsActive systems all function basically same variousconfigurations (closed and open loops), depending on customersclimate zonePassive systems come in two basic types:Thermosyphon and batchEach system has distinct advantagesActive systems use electric pumps, valves, and controllers tocirculate water or other heat-transfer fluids throughcollectorsUsually more expensive than passive systems are generallyeasier to retrofit than passive systemsStorage tanks do not need to be installed above or close tocollectorsRelies on natural circulation of water between collector andtank or heat exchangerAs water in vacuum tubes are heated rise naturally intotankCooler water in tank flows down to bottom of vacuum tubes,causing circulation throughout systemFollowing picture simplest of installation configurationsTanks are low pressure and open ventedTanks are manually filled by opening tap in houseOnce tanks are full water runs out through overflow pipe fedback down into houseWater starts flowing out tanks are fullUsing water tank gradually drains until emptyAccustomed to method of operation, user knows much water leftin tank and can fill up at appropriate timeDepending on hot water usage pattern and weatherconditionsHot water can be used directly for showering or can be used aspre-heat, feeding inlet of instant or tank water heaterAll trademarks shown here are for reference purposesonly. They are the property of their respective owners and we arenot authorized to sell items bearing such trademarks.Product DetailsPrimary Competitive Advantages:Brand-name PartsForm APackagingQuality ApprovalsCountry of OriginPriceReputationDistributorships OfferedProduct FeaturesServiceProduct PerformanceSmall Orders AcceptedPrompt DeliveryMain Export Markets:AsiaAustralasiaCentral/South AmericaEastern EuropeMid East/AfricaNorth AmericaWestern Europe