1. CE, RoHS certificates; 2. Anti-freezen & pressurized; 3. warranty:5 years for vacuum tubes.

Specification:

Manifold casing material	Aluminum alloy
Frame material	Aluminum alloy
Header pipe material	Copper  diameter:35mm, thickness:1.0mm
Heat pipe material	Copper  diameter: 8mm, thicknes:0.6mm . consider cover diameter:14mm anti-freeze size
Insulation	Rock wool
Rubber seals and rings	UV stabilized high temperature silicon rubber
Test Pressure	10bar
Normal work pressure	6bar
Collector Mouting	Flat roof/ inclined roof
Inlet outlet	1/2'' or Ø22

Feature:

a. Module design, arbitrary combination, harmonize with the building perfectlyb. Intelligent control and automatic operationc. Anti-freeze: Using the anti-freezing liquid as the medium and the controller hasthe anti-freezing functiond. Multifunction: bathing, washing, domestic heating etc.e. Work at anytime and enjoyable.

U pipe solar thermal collector with high heat collecting and heat delivery efficiency, match with separate pressurized system.

U pipe solar thermal collector is special designed for the separate pressurized solar heating systems. It's easy to combine with existing water heating systems. This solar collector is of excellent figure, reliable performance, low maintenance, convenient replacement. One or several glass tubes broken will not affect the operation of the whole system.