Glass vacuum tube

Listing ID #4000079

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Outer tube diameter and glass thicknessΦ47±0.7mm:Glass thickness 1.6±0.15mm Φ58±0.7mm:Glass thickness 1.6±0.15mm Φ70±0.7mm:Glass thickness 2.0±0.15mm
Absorptivity: a =0.92~0.96(AM1.5)Emission ratio
Glass materialHigh borosilicate 3.3 glass
Tube length800mm, 1200mm, 1500mm,1600mm, 1800mm, 1900mm, 2000mm, 2100mm etc
Supply Type Manufacturer, Exporter, Supplier
Preferred Buyer Location All over the world

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Product Details

Hail resistance Φ25mm
Absorptivity: a =0.92~0.96(AM1.5) Emission ratio
Three Target magnetron sputtering plation Absorptivity
Tube length 800mm, 1200mm, 1500mm,1600mm, 1800mm, 1900mm, 2000mm, 2100mm etc
CU/SS-ALN(H)/SS-ALN(L)/ALN Sediment method
260~3000C
P≤5.0 × 10-3 (PA) Stagnation temperature (temperature inside of empty evacuated tubes)
Pressure-endure 1MPa
Glass material High borosilicate 3.3 glass
Tube structure All-glass double dock co-axial structure
Average heat loss ULT0.4~0.6W/(m2* 0C)
Outer tube diameter and glass thickness Φ47±0.7mm:Glass thickness 1.6±0.15mm Φ58±0.7mm:Glass thickness 1.6±0.15mm Φ70±0.7mm:Glass thickness 2.0±0.15mm
Emission: ε=0.04~0.06(800C± 50C) Vacuum degree
Absorption coating property Coating material
Inner tube diameter and glass thickness Φ37±0.7mm:Glass thickness 1.6±0.15mm Φ47±0.7mm:Glass thickness 1.6±0.15mm Φ58±0.7mm:Glass thickness 1.6±0.15mm

The vacuum tube is the core component of the solar water heater. Its performance is depends on the merits of the film coating technology. Our company using the new gradient coating technology produce three- target vacuum tube and it let the heat gain more than 4%. Increasing intelligent automatic cut Road equipment to ensure the pipe accurately: The reverse osmosis deionized water equipment to protect the inner tube highly clean and control the vacuum process technology to ensure the high vacuum tube collector efficiency and resistance to attenuation performance. Three target coating process, the absorption layer with unique stainless steel aluminum nitride, ultra-pure copper mirror as reflective layer.

The production of three-target vacuum tube has three major advantages:

High temperature resistant absorption layer special stainless steel aluminum nitride,
resistance to high temperature can reach 500⁰C.
film does not fall off, not aging.

Resistance to cold ultra pure copper emission mirror, low reflection, heat loss is small, cold environment set thermal effect is good, so have hot water.

Efficient absorption high absorption ratio 96%,reflectance is reduced by 65% and heat gain increased by 4% water temperature is higher, more hot water.

Suitable model: ordinary solar energy water heater (see picture), project heater solar energy water heater (see picture)

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Company Details

MEGAPOWER introducing innovative technology in the field of solar energy. The company is directed by its team of experienced professionals who are alumni from the India’s top most technical institutes like IIT, specialized in the areas of Renewable Energies.
MEGAPOWER’s team of dedicated professionals committed to customers and dealers satisfaction in the field of Solar Energy all over the India. We are specialized in domestic as well as industrial energy audits to meet the customer’s expectation as per their need.