Three Target Solar Vacuum Tube - from 1.2m to 2.1m

1.widely used for solar water heater, 2.ensure operation in winter, 3.15 years' warranty for tube - more info check here: http://www.sourcingappliances.com/Three-Target-Solar-Vacuum-Tube-11140338/

Quick Brief

Type: Solar Water Heater Parts Place of Origin: Zhejiang China (Mainland) Brand Name: three-cavity all-glass evacuated so... Model Number: from 1.2m to 2.1m Type: Tri-element Hitech vacuum tube External pipe diameter: 47 or 58 or 70 Internal pipe diameter: 37 or 47or 58 Pressure-endure: 0.6MPa Sediment method: Three Targets magnetron sputte... Absorptivity: 0.93-0.96 Emittance: <=6.0%(75-80?) Stagnation parameter: 240~260 Average heat loss: <=0.6 coating material: CU/SS-AIN(H)/SS-AIN(L)

Product Features:

1.widely used for solar water heater

2.ensure operation in winter

3.15 years' warranty for tube

Business Terms:

Port: shanghai/ningbo

Minimum Order Quantity: 300 Piece/Pieces

Supply Ability: 15,000,000 Piece/Pieces per Year

Payment Terms: L/C,T/T

Contact Supplier

Specifications and Product Details:

Tube structure	Borosilicate 3.3 glass
External pipe diameter and thickness	Φ=47±0.7mm &=1.6mm Φ=58±0.7mm &=1.6mm Φ=70±0.7mm &=1.6mm
Internal pipe diameter and thickness	Φ=37±0.7mm &=1.6mm Φ=47±0.7mm &=1.6mm Φ=58±0.7mm &=1.6mm
Tube lenghth	from 1.2 to 2.1
Sediment method	Three Targets magnetron sputtering plating
Absorptivity	0.93-0.96
Emittance	<=6.0%(75-80°C)
Stagnation parameter	240~260
Average heat loss	<=0.6

Full glass three-target vacuum tube

installment and operation easier, safety(pretection from scald) , ISO ,CCC , CE approval

Adopt international advanced interferometer coating technique. Absorbing layer is coated with
Stainless Steel and Nitrided Aluminum. That effectively solved the problem such as performance
attenuation of normal vacuum tube under high temperature for a long time.

Reflection metal layer with super-pure copper mirror has high heat efficiency, low
reflectivity, resist low temperature and perform stably. The tube has better quality at the
same price than normal tube , is especially used for separate pressurized hot water system and
project. It can be applied for industrial and technical field such as generating electricity ,
refrigerating , desalting of seawater.

Select 3.3 high borosilicon glass tube in according with GB/T2436-99(ISO4803-1978) standard.
It has good performance of cold and heat resistance , high sunlight permeation, and strong
optics stability.

Produce and inspect according to enterprise standard higher than GB/17049-1997 national
standard.

Common specification: 47×1500mm ; 58×1800mm ; 70×2000mm

Item	47×1500mm	58×1800mm	70×2000mm
Performance parameter of shining emptily	≥175 m2*/kW	≥175 m2*/kW	≥175 m2*/kW
Complement shining amount	≤3.8MJ/ m2	≤4.7MJ/ m2	---------
Average heat loss coeffecient	≤0.90w/ (m2*)	≤0.90w/ (m2*)	≤0.90w/ (m2*)
Vacuum degree	≤5×10-2pa	≤5×10-2pa	≤5×10-2pa
Pressure resistance	0.6MPa	0.6MPa	0.6MPa
Heat impact resistance	bear three pounds with 0 water
Assaulting resistance	endure impact that 30mm steel ball fall down from 450mms
Shining temperature emptily	>250	>250	>250
absorptivity	>92%	>92%	>92%
reflectivity	≤8%	≤8%	≤8%
Freeze resistance	>-40	>-40	>-40
weightkg	≥1.3	≥2.0	≥3.1
capacityL	1.3	2.7	4.6
The total length public errandmm	±7.5	±9	±10
Outer tube diametermm	47±0.7	58±0.7	70±0.7
Outer tube thicknessmm	1.6±0.15	1.6±0.15	2.0±0.15
Inner tube diametermm	37±0.7	47±0.7	58±0.7
Inner tube thicknessmm	1.6±0.15	1.6±0.15	1.6±0.15