1.45 lines for solar water heater 2.three target coating(SS-CU-ALN/ALN) 3.5 years quality warranty

 solar vacuum tube work principle:

          

1) Copper heat pipe and inner medium for thermal transmission, with a quick start up and super efficiency.

2) No water flows into vacuum tubes, system works well with with-drawal o fone or several heat pipe vacuum tubes.

3) Super efficiency of insulation with polyurethane foam; No vent with less heat loss as compared to nonperssurized type.

 

 

1.Our company is a manufacturer about solar vacuum tube since 1998 years over 13 years .Our quality control are all very strict .

The following is our new product named double solar vacuum tube. 

This picture is the raw material of the out tube:

 

 

The double solar tube before exhaust:

one side of the double solar tube finishing product

  

  The other side of the double solar vacuum tube:

 The detail before exhaust

new style three cavity solar vacuum tube