Working Principle:This type solar water heater provides main
pressure pre-heating via a high efficiency copper coil heat
exchanger with the solar collector tank.Rater than using
the water in the tank directly, as the non-pressure does.When water
flows through the coil it absorb heat from the water inside the
solar tank. The solar tank therefore is a thermal store and amount
ofWater you can draw isn't restricted to size of tank.There is no
water entering such kind of collector so that it can avoid
corrosion and rust. Pre-heating solar water heater can be connected
directly with pressure water pipeline.So it can be used as high
pressure system.Feature:1) Exterior tank with stainless
steel/galvanized steel2) Interior tank with food grade stainless
steel SUS304-2B3) Frame with stainless steel/galvanized steel4)
Copper coil can bear pressure 0.6MPA5) With
55mm Germany polyurethane foam insulation6) Borosilicate
3.3 twins-glass vacuum tube7) Optional fittings: assistant
refilling tank ,controller, electrical heater etc. Item
No.SpecificationTank's Capacity(Liters)Tube
Aperture area (m2)Qty (set)Diameter of water
tankQty. of solar tubesDiameter of solar tubeLength of
solar
tube20GP40GPST470-58/1800-18PHCS470mm18pcs58mm1800mm180L1.674386ST470-58/1800-20PHCS470mm20pcs58mm1800mm200L1.863877ST470-58/1800-24PHCS470mm24pcs58mm1800mm250L2.233367ST470-58/1800-30PHCS470mm30pcs58mm1800mm300L2.7926 53
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