solar vacuum tube JH-VACUUM TUBE

solar vacuum tube - JH-VACUUM TUBE

The absorber of the solar water heater., It absorbs solar energy and convert it into heat into water for use in water heating; - more info check here: http://www.sourcingappliances.com/solar-vacuum-tube-11109536/

Quick Brief

Type: Solar Water Heater Parts Place of Origin: Zhejiang China (Mainland) Brand Name: JINHONG Model Number: JH-VACUUM TUBE HS CODE: 84191910 Function: collect the solar energy and transfer... Performance: 92% absorption Guarantee: 3 Years

Product Features:

The absorber of the solar water heater.

It absorbs solar energy and convert it into heat into water for use in water heating;

Business Terms:

Port: Shanghai or Ningbo

Minimum Order Quantity: 2500 Piece/Pieces Volume purchase will cut your cost

Supply Ability: 2000 Piece/Pieces per Day Accept OEM service

Payment Terms: L/C,T/T,Western Union,RMB

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Specifications and Product Details:

Solar Vacuum tube:

I.Features:

The absorber of the solar water heater. which absorbs solar energy and convert it into heat then transfor the heat into water for use in water heating.It is the most improtant part of the solar water heater.

It consists of two borosilicate glass. the inner tube is coated with a sputtered solar selective coating (Al-N/Al) or (Al-N/AL/SS/CU), this coated inner tube is closed at one end and sealed at the other end to the outer tube.

the annular space between the outer tube and inner tube is evacuated to virtualy eliminate heat loss by conduction and convection. And the outer tube is transparent allowing light rays to pass through with minimal reflection.This "evacuation" of the gasses forms a vacuum, which is an important factor in the performance of the evacuated tubes.

II.Working principle:

III.Specifications:

TECHNIC SPECIFICATION
Models	47*1500	58*1500
Weight	1.35±0.12kg	2.29±0.18kg
Structure	All-glass-tube coaxial structure Double-layer tubes	All-glass-tube coaxial structure Double-layer tubes
Outer tube diameter	Dia47±0.7mm	Dia58±0.7mm
Inner tube diameter	Dia37±0.7mm	Dia47±0.7mm
Outer tube thickness	1.6±0.15mm	1.6±0.15mm
Outer tube thickness	1.6±0.15mm	1.6±0.15mm
Tubes length	1542±4mm	1512±4mm
Material of coating	AL/N/AL	AL/N/AL
Absorptive coating property	0.90~0.93(AM1.5)	0.90~0.93(AM1.5)
Absorptive coating property	0.05~0.75(80°C±1.5°C)	0.05~0.75(80°C±1.5°C)
Vacuum tightness	P≤5×10-3 Pa	P≤5×10-3 Pa
Transmittance of outer Tube	0.91	0.91
Stagnation temperature	270-300°C	270-300°C
Heat loss coefficient	≤0.6W/M2	≤0.6W/M2
Solar irradiation for obtaining a preset water temperature	H≤4.7MJ/M2(Dia47) H≤4.7MJ/M2(Dia58)	H=3.1-3.4J/m2 H=4.1-4.4J/m2
Bearing hailstone ability& Pressure-endure ability	Hailstone diameter 25mm & 1MP	Hailstone diameter25mm & 1MP
Average heat loss coefficient	ULT=0.6~0.7W/(M2. °C)