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Highly absorptive vacuum tubes - from 1.2 to 2.1

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/Highly-absorptive-vacuum-tubes-11140677/

Quick Brief

Type: Solar Water Heater Parts Place of Origin: China (Mainland) Brand Name: three-cavity all-glass evacuated so... Model Number: from 1.2 to 2.1 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

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Highly absorptive vacuum tubes
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Product Packagings & Delivery Terms:

Packaging Detail: packed by carton with PE fom insinde

Delivery Detail: 7 days after po

Specifications and Product Details:

Tube structureBorosilicate 3.3 glass
External pipe diameter and thicknessΦ=47±0.7mm &=1.6mm

Φ=58±0.7mm &=1.6mm

Φ=70±0.7mm &=1.6mm

Internal pipe diameter and thicknessΦ=37±0.7mm &=1.6mm

Φ=47±0.7mm &=1.6mm

Φ=58±0.7mm &=1.6mm

Tube lenghthfrom 1.2 to 2.1
Sediment methodThree Targets magnetron sputtering plating
Absorptivity0.93-0.96
Emittance<=6.0%(75-80°C)
Stagnation parameter240~260
Average heat loss<=0.6

Advantage of us :

1). we adept the advanced magnetron sputtering plating to make sure gain high absorptivity and low emittance.

2) We used Stainless steel ion instead of Aluminum Whiich can endurehight tempreture.

3).the Interference film changed little in high tempreture.

4).Highly efficient zbsorber of high performance with daily average effciency over 40%-50%.

5).Start up quickly heat pipe transfer the heat energy into the storage tank in one condition.

6).With stand pressure of 0.6Mpa,can be connected directly with city water pipe.

7).Highly efficient insulation with polyurethane foam.

8).Can be used all year round even in the cold weather.

9).Automatically controlled.

10).For both flat roof and slope roof.

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