Highly competitive absorptive solar vacuum Tube(CE,solar keymark,SRCC)

Highly-absorptive Vacuum Tube: 1.highly absorptive, highly durable 2.ISO9001,CE,CCC certificate

                                                    Highly absorptive Vacuum Tube

Kaidun Highly-absorptive Vacuum Tube is made of borosilicate glass, which applies the advanced 12-layer of spattering deposition technology of gradual change of ALN/AIN-SS/CU selective absorptive coating.

This makes the vacuum tubes highly absorptive and highly durable to high temperature and low temperature. Meanwhile the vacuum tube features a low reflection ratio. The interlayer gives the tube a unique effect of thermo, and the surface temperature could be as high as 380. It is the key part of the solar water heater and decides the performance of the heating system.

                                                                  Specification

                                        *Specification of Highly-absorptive Vacuum Tube

                                          A) Structure: all glass concentric dual layer tube

                                          B) Glass material: borosilicate

                                          C) Absorptance: >0.92

                                          D) Emittance: <0.08 (80)

                                          E) Vacuum: <5*10-3 Pa

                                          F) Stagnation: >230 ./KW

                                          G) Average Heat Loss: <0.8 w/ .

                                          H) Service life: more than 15 years

                                     Technical Data of Highly-absorptive Vacuum Tube

Models	Material	Diameter	Length	Coating	Vacuum		Hail resistance	Transmittance
Ø47x1500	borosilicate	47 mm	1500 mm	ALN/AIN-SS/CU	≤5x10-3	Ø 25 mm		0.91
Ø47x1800	borosilicate	47 mm	1800 mm	ALN/AIN-SS/CU	≤5x10-3	Ø 25 mm		0.91
Ø58x1800	borosilicate	58 mm	1800 mm	ALN/AIN-SS/CU	≤5x10-3	Ø 25 mm		0.92
Ø58x2100	borosilicate	58 mm	2100 mm	ALN/AIN-SS/CU	≤5x10-3	Ø 25 mm		0.91

                                                                  All  glass vacuum  tube

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Highly competitive absorptive solar vacuum Tube(CE,solar keymark,SRCC)