Evacuated Vacuum Tube

Negotiable / Piece(s)

Min. Order 1 Piece(s)

Huanyu (Sundial) Industrial Co.,Ltd.

Evacuated Vacuum Tube

Price: Negotiable / Piece(s)
Min. Order: 1 Piece(s)
Stock: 0
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Huanyu (Sundial) Industrial Co.,Ltd.

Location:: Guangdong,China
Main Category:: Electrical and Lighting
Main Products:: solar water heaters, solar collectors, evacuated vacuum tubes, heat pipe, Super heat conduction metal vacuum tubes

Contact Info.

Product Description

GLASS VACUUM TUBE

All glass evacuated tubes are the key component of solar collectors. The evacuated tube is similar to a conventional Dewar flask and consists of two borosilicate glass tubes, a glass with high chemical and thermal shock resistance. The outer side of the inner tube is coated with a sputtered solar selective surface. 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 virtually eliminate heat loss by conduction and convection.

Features:
High solar-thermal conversion and low heat loss
High level vacuum ensure operation under cold weathe
Long time warranty to 15 years
Stable advanced coating up to 380℃

Data sheet and Model specification

Models	Ф47×1500	Ф47×1800	Ф58×1500	Ф58×1800
Weight	1.35±0.12kg	1.56±0.14kg	1.97±0.16kg	2.29±0.18kg
Structure	All glass coaxial double-layer tubes	All glass coaxial double-layer tubes	All glass coaxial double-layer tubes	All glass coaxial double-layer tubes
Outer tube diameter	Ф47±0.7mm	Ф47±0.7mm	Ф58±0.7mm	Ф58±0.7mm
Inner tube diameter	Ф37±0.7mm	Ф37±0.7mm	Ф47±0.7mm	Ф47±0.7mm
Outer Tube thickness	1.6±0.15mm	1.6±0.15mm	1.8±0.15mm	1.8±0.15mm
Inner tube thickness	1.6±0.15mm	1.6±0.15mm	1.6±0.15mm	1.6±0.15mm
Tubes length	1542±4mm	1812±4mm	1542±4mm	1812±4mm
Material of coating	AlN/AIN-SS/Cu	AlN/AIN-SS/CU	AlN/AIN-SS/CU	AlN/AIN-SS/CU
Absorptance	0.94~0.96	0.94~0.96	0.94~0.96	0.94~0.96
Emittance	0.04~0.06	0.04~0.06	0.04~0.06	0.04~0.06
Vacuum	P≤5×10-3pa	P≤5×10-3pa	P≤5×10-3pa	P≤5×10-3pa
Transmittance of Outer Tube	0.91	0.91	0.91	0.91
Stagnation temperature (height)	270~300℃	270~300℃	270~300℃	270~300℃
Heat-loss coefficient	≤0.6w/ m2*℃)	≤0.6 w/ (m2*℃)	≤0.6 w/ (m2*℃)	≤0.6 w/ (m2*℃)
Bearing hailstone ability	hailstone diameterФ25mm	hailstone diameterФ25mm	hailstone diameterФ25mm	hailstone diameterФ25mm
Pressure-endure ability	1MPa	1MPa	1MPa	1MPa

Huanyu (Sundial) Industrial Co.,Ltd.

Company Introduction

HuanYu (Sundial) Industrial Co.Ltd. is a privately held enterprise that manufactures solar energy compatible products and their accessories. The company consisted of two subsidiaries.

Huanyu (Sundial) Indstrial Co.Ltd.’s factory is situated in the “solar energy water heater(SWH)” province of China, Jiangsu. Our export management office placed in famous “Canton” city Guangzhou, for our respectable customers’ convenience. We are blessed with advantageous geographical position and convenient transportation access.

　　We are a modern enterprise that integrates research, development, production and sales into one process. Our factory has satisfied and exceeded the solar energy water heaters productivity admittance standards of China. Majority of our products have obtained CCC and CE certifications. Also our company has met the ISO9001 quality administration system standards. Our company’s products have continuously won praises and recognitions due to our implementation of modern manufacturing technologies and efficient management techniques. In the coming years, we will meet market challenges with ever better management techniques, capital investments and an incessand drive for R&D.

HuanYu (Sundial) Co.Ltd. manufacturing facilities occupy an area of more than 500 hectares. In total we have more than 700 active employees; %10 are engineers, %15 are national and international trade specialists and post-sale support staff, %15 are sourcing specialists and production material managers. We regard a talented and educated workforce as the foundation of a dynamic and successful company.

Since HuanYu (Sundial) Co.Ltd. first appeared 1987, it has involved into solar energy water heaters market with an annual production capacity of around 350.000 sets. In addition, our company has acquired an Export Department Office in GUANGZHOU, GUANGDONG to focus international business from a famous convenient city.