... solar collector .CE,Keymark .5-15 years warranty .24hours online service Heat pipe collector detailsModel:FD-SC-5Heat pipe collector ... Glass tube dimensions: 58mm x 1.800mm4. Tube no: 5tube 5. Insulation layer: 40mm thickness glass firber /polyurethane layer 6. ... dairies 4. Process industry, Boiler feed, Laundry and canteens 5. Agricultural sector, hatcheries, and dairies 6. Swimming pool heating ...