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Pressure Tubular Solar Water Heater System
  • SFE-P series
Pressurized product without water tank, Widely used for the swimming pool, hotel and relevant projects,reliable quality with cheapest price.
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The design of this type uses the Thermosyphon principle.

This kind of project solar collector is vacuum tube collector. It is widely used on commercial project for a hotel, school or a swimming pool.
1) Designed for commercial solar water heating applications 
2) Reliable and efficient with twin-glass solar tubes 
3) Polyurethane insulation ensures good heating performance and minimal heat loss
4) Manifold cover's material: stainless steel or galvanized sheet 
5) Frame material: 1.2mm thick all stainless steel
6) Easy plug-in installation 
7) Can be connected in series to increase water heating capacity 
Six Advantages
1. Compulsive recycling means help the system collector absorb the sun energy and transfers it to water tank efficiently
2. High working efficiency: with the scientific principle, the heat energy can be transferred to water tank on time
3. Saving energy: choosing Germany original pump, the electricity consumption is very litter, just only several cents every day
4. One pump, two functions: increasing pressure and recycling
5. Operation easily with an intelligent controller and digital display
6. Beautiful appearance and easy to be installed
Principles and characteristics


SFE-P series Solar water heaters Specifications:

Item No. Specification Qty (set)
Qty.  of solar tubes Diameter of solar tube Length of solar tube  Effective collector area M2 Capacity (Liter/Day) 20'ft 40'ft
SFE205818 20pcs Ø 58mm 1.8M 2.52 180 78 159
SFE255818 25pcs Ø 58mm 1.8M 3.15 225 65 132


1. Model explanation: Take SFE205818 for example, “SFE” is Sunflower’s solar water heater SF-E series products, “20” means the tube quantity is 20 pcs, “5818” means the vacuum tube is 1.8 meter  ф58mm.


SFE-P series Solar water heaters Package and Size:


Solar Water Heaters Size


Model Size(mm)
a b c d
SFE205818 1920 1800 1200 1398
SFE255818 2240 2120 1200 1398

Package: Solar Water tank, Solar Standing Frames, Solar tubes are separately packed in one carton. Cartons can be loaded into container directly. 


Optional Accessories for SFE-P series Solar Water Heaters:


Item Name Describe
1 Water Supplier Used to fill the water into big water tank automatically.
2 Ball Valve As a switch in system