"3-Hi" Vacuum Tube Technology

Most Efficient Vacuum Tubes Made!

 

When investing in solar technology, it is important to ensure the "engine" you select is the most powerful and the longest lasting made.  This if why we use SunRain's patented "3-Hi" vacuum tubes.  The absorbing coating found on the inner layer determines how efficient the vacuum tube will operate.  The method and material of this coating  will also define the life expectancy of the vacuum tube.

Most vacuum tubes use a hi-tech reactive sputtering process to coat the inner tube.  Most commonly this coating is made from an aluminum and aluminum-nitrogen coating (Al-N/Al) which is the primary absorbing coating. 

SunRain's International patented interference film coating “3 Hi” vacuum tubes use 3 systems to ensure the most effective heat absorption. This included a AL-N/AI layer but also a separate aluminum and copper layer.  The added layer conduct heat better and also stabilize the coating allowing for a much longer lifespan of 20 year or greater. 

Test Drive one of our solar systems and you will quickly see the difference a powerful "engine" makes.  See below for comparission on SunRain performance vesus other leading evacuated tube suppliers.

 

 SunRain Certification for Government Grants

SRCC Certification	CSA Certification	Solarkeymark Certification

 

 SunRain In The News 

Sunrain has been designated to receive the highest international quality award--"International Quality Star"issued by BID (Business Initiative Directions),  The award presentation ceremony took place in Geneva, in Switzerland, on Oct. 27th, 2008. The highest international quality award isaimed to honor the international enterprises which gained excellent achievementsin such aspects as the quality, technology, customer service, prestige and so on. The subjects of the highest international quality award 2008 were chosen from large and medium-sized enterprises of 90 countries and regions, including the world's top 500 enterprises by BID for 10 months, and voted in meetings hold in Paris, London, New Delhi, Geneva,Frankfurt and New York . In accordance with International Quality Star standards and quality management standards, Sunrain Group won this international award.

On May 5th there was good news from the Solar 2008 American Solar Energy Society (ASES) Solar congress held in San Diego, California State, USA, that Chief Scientific Consultant of Sunrain Group, Dr. Geoff Harding has been awarded the “Hoyt Clarke Hottel Prize” by ASES for 2008. The award was made to Dr. Harding for his research and development of evacuated glass solar thermal collector technology which is now in widespread use World wide. The “Hoyt Clarke Hottel Award” is the most prestigious prize in the world Solar Industry and is awarded each year.

 

 

SunRain Versus the Competition

As the worlds leader in Solar Vacuum tubes, SunRain clearly has done so by providing quality prodcuts at affordable prices.  SunRain Evacuated Tube Solar Collectors are the most cost-effective collectors on the market – they offer the best performance at the best price – THE BEST VALUE AVAILABLE!  SunRain Evacuated Tube Solar Collectors out-perform all major competitors – and are available for hundreds of dollars less.

Based on actual German Keymark Testing and SRCC, here is how the SunRain performs against the leading vacuum tube major competitors:

Manufacturer	Model	# of Tubes	BTU/Day (SRCC)
SunRain	TZ58/1800-30R	20	28,000
Apricus	AP-20	20	23,000
Thermomax	TMA-600-20	20	26,000
Thermo Ind.	Solamax AST-20	20	23,000

When comparing the BTU/$ values for SunRain Evacuated Tube Solar Collectors and Apricus’ AP-20 Solar Collector, it is clear that SunRain Evacuated Tube Solar Collectors are the better value – hands down.  And these figures are even more staggering when compared with the selling price of Thermomax’s Solar Collectors.

Supplier	BTU/Day	MSRP	BTU/$
SunRain	28,000	1125	24.89
Apricus	23,000	1,310	17.56
Thermomax	26,000	2,000	13.00

These numbers are clear as day – illustrating the tremendous value of the SunRain Evacuated Tube Solar Collectors compared to the leading national competitors.  If you want to make the smart decision and choose the right solar collector for your home or for your dealership/installation business, SunRain Evacuated Tube Solar Collectors deliver the performance, quality low price and value you need!

 

 Technical Specs

Specification	Pool Series Vacuum TZ58/1800-40G	Heating Series  Heat Pipe TZ58/1800-30R
Number of tubes	40	30
Frame& manifold	Stainless Steel	Aluminum
Heating type	Open Vaccum Tube	Copper Heat Pipe
Lenth of Tube	1800mm	1800mm
OD of tube	58 mm	58mm
ID of tube	50 mm	50mm
Glass Thickness	2 mm	2mm
Water Capacity	36l (8 gallons)	1.5l (1/3 gallons)
Weight dry	198lbs	220 lbs
Weigh Wet	280 lbs	230 lbs
ApproxBTU/HR	3000/hr	2200/3000/hr
Pressure	30 psi	116 psi
Glass MaVacuumterial	Borosilicate glass	Borosilicate glass
Vacuum	P<5x10 -3 PA	P<5x10 -3 PA
Frame	Included	Included
Warranty	5  years	5  years

 

 

 Sizing  TZ58 1800 30R - Heating Collectors

Ground Mount

 

Roof Mount

Sizing TZ58 1800 40G -Pool Collectors

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