10 units of Vacuum Tubes for solar water heater, evacuated tubes for solar!, US $520 – Picture 0

10 units of Vacuum Tubes for solar water heater, evacuated tubes for solar!, US $520 – Picture 1

10 units of Vacuum Tubes for solar water heater, evacuated tubes for solar!, US $520 – Picture 2

10 units of Vacuum Tubes for solar water heater, evacuated tubes for solar!, US $520 – Picture 3

10 units of Vacuum Tubes for solar water heater, evacuated tubes for solar!, US $520 – Picture 4

10 units of Vacuum Tubes for solar water heater, evacuated tubes for solar!, US $520 – Picture 5

10 Units Of Vacuum Tubes For Solar Water Heater, Evacuated Tubes For Solar!

US $520

jiaxing, China
Jan 29th

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10 units of Vacuum Tubes for solar water heater, evacuated tubes for solar! Description This listing includes:10 units of vacuum tubes (or evacuated tube) for solar,high performance. Length oftube:500mm Application:they can used for the demo solar collector, demo solarwater heater, or other DIY solar hot water heating system. Get the energy fromthe SUN. Remark: the tubes arefragile, we will ship to you via Express. (if tubes broken, we will ship to you again orrefund to you, no worries) Description: Just like an automobile engine, the computer CPU, evacuated tube is coreof the solar water heater. It’s similar to a conventional Dewar flask and consists of twoborosilicate glass tubes, resisting to high chemical and thermal shock. Theouter side of the inner tube is coated with a sputtered solar selectivesurface. This coated inner tube is closed at one end and sealed at the otherend to the outer tube. The annular space between the outer tube and inner tubeis evacuated to avoid heat loss in conduction and conversion. Evacuated tubes are aligned in parallel; the angle of mounting dependsupon the latitude of your location. In a North South orientation the tubes canpassively track heat from the sun all day. In an East West orientation they cantrack the sun all year round. The efficiency of an evacuated water heater is dependent upon a number offactors, one important one being the level of evacuated radiation in yourregion. The efficiency of a evacuated water heater is dependent upon a number offactors, one important one being the level of evacuated radiation in yourregion. Basic Specifications of Three Target Glass Vacuum Tube Structure All-Glass Double-tube co-axial structure Glass Material High borosilicate 3.3 glass External pipe diameter and thickness ?58mm, +/-0.6mm; T=1.6mm Internal pipe diameter and thickness ?48mm, +/-0.6mm; T=1.6mm Pipe Length 500mm Absorptive coating property Structure Raw glass/Cu/SS-ALN(H)/SS-ALN(L)/ALN Sediment method 3 Target magnetron sputtering plating Specific absorption As=0.93~0.96 (AM1.5) Emission ratio ?h=0.04~0.06 (80oC+/- 5) Vacuum Tightness P<=5.0*10-3Pa Idle sunning property parameters Y=260~300m2.c/KW Solar Irradiation for obtaining a preset water temperature H<=4.7MJ/m2(?58) H<=3.7~4.2 MJ/m2 H<=3.7MJ/m2(?47) H<=2.9~3.2 MJ/m2 Average Heat Loss Coefficient ULT= 0.4~0.6 w/( m2, oC) Payment · Please pay within 3 days after auction. · Please contact us for your payment if you have any problem. Delivery details · Your item will be shipped within 48 hours in business days if payment for the order is cleared before 8PM PST daily (except Saturday, Sunday and Holidays). If there's an exception, we will inform you. · Buyer, as the importer, is responsible for paying the customs clearance cost or related TAX. Terms of sale · Positive Feedback is our life. Before you leave a neutral or negative feedback, please contact us first to get a better solution. (It is impossible to drawback the evaluation).We care our valued customers. So if you have any problems, please contact us immediately. Please give us the opportunity to resolve a problem. We understand the concerns and frustrations you might have and try our best to resolve the issues. Leaving neutral or negative feedback cannot solve the problems. About us · Welcome to my eBay store. We are specialized on Energy Saving electronics: Solar water heater and controllers, pump stations, solar charge controller, inverter, SOLAR Lamps, etc.. Please add me to your list of favorite sellers and visit often. We are pleased to work with you! Contact us All communication is handled through emails. We strive to answer all emails as quickly as possible. Due to high-email volume, it might take longer to reply. Thank you in advance for your patience. Due to some ISP SPAM filter settings, you may not be able receive our email reply. If you don't receive any reply from us, please try to use different email account contact or use email message after login. Engineered for professional eBay sellers!