250L high pressurized passive  solar water heating

250Liter hot water can satisfy almost all of family,usually for family use hot water 40Liters per person, so 250Liters can meet demand of 6persons shower.

Our passive solar water heating adopts thermosiphon way for water circulation, flat plate solar collectors get solar power from sun by absorbing core board which coating with blue film and transfer the hot water by thermosiphon way to exchange the colder water in tank.Here the tank is pressurized container. So system is close loop for a fast heat exchange and less heat loose compare to open loop passive solar water heating.

More information of our passive solar water heating as below for your reference:

•  Hot water Tank size: full water capacity 250L
•  Stainless steel SUS304-2B food grade with thickness 1.5mm for inner tank
•  Stainless steel SUS 304-2B is applied for outer tank, thickness in 0.4mm;
•  Heat Insulation: thickness in 50mm polyurethane
• Aluminum alloy supporting frame 2mm
• Flat plate solar collector: main absorbing core with whole aluminum board with blue titanium coating imported from Germany;main flow passagers is made in high quality TP copper;Glass in tempered with high absorbing and low reflecting feature. Back and surround are covered by fiber glass insolation; case are in strong alumium alloy assemble as one unit not reviet type,even back steel are in aluminum to make a top quality.

Detail working way of High pressurized flat panel passive solar water heating:

1.    High pressurized flat panel solar water heater is design for passive  working

2.    Solar collector and tank are split before assemble by support bracket

3.    The flat panel solar collector is installed below the water tank for natural circulation feature.

4.    When it operates,heat absorbed by solar collector is transferred to water tank through passive circulation,so hot water is obtained.

We pay double attention on delicate producing of our passive solar water heating.

l  Tank in full water capacity as called

l  Flat panel solar collector with blue film absorbing board lead to high heat efficiency

l  Flat panel solar collector case and back side steel are all in aluminum alloy ,anodized for long lifetime

l  All sealing parts are EPDM material,UV proof and high temperature proof.

l  Tank heat preservation foam in polyurethane ,long preservation time for more than 3days.

l  Outer tank steel is high quality SUS304-2B stainless steel, best choice for against bad water quality and environment area

l  Inner tank steel is SUS304-2B food grade stainless steel, thickness reaches 1.5mm, thicker than market standard for long life time and high pressure.

l  Outer tank cover fixed by aluminum rivet ,no more depart off risk.

l  Stainless steel protection welding by arc-argon is applied for all fittings.

l  Big Flange Screws for the tank and bracket connection are used to  protect the tank outer material .

l  Safety valves are all designed for security purpose: PT valve, cold water inlet (with one way valve )

l  Intelligent Controller and electric heater is available

Focus pointers of our passive solar water heating to show the worthful  value:

l  Tank steels are all in food grad high nickel content SUS304-2B stainless steel

l  Frame and flat plate solar collector are in aluminum alloy,even back board is in aluminum alloy.

l  Even bolts and screws are in 304 stainless steel

In a words, the design of solar water heater is  totally anti-rust design for long lifespan.