*CE,ISO9001,ISO14001
*higher efficient coating
*CU-SS-ALN/AIN
*Tri-element Vacuum tubes
Port: Shanghai/Ningbo
Minimum Order Quantity: 10000 Piece/Pieces
Supply Ability: 10000 Piece/Pieces per Month
Payment Terms: L/C,T/T,Western Union
Contact Supplier
| Item | One-target | Three-target |
| Absorption of Selective Coating AM1.5 | ≥94.5% | ≥95.5% |
| Emission of Selective Coating 80±5 | ≤6.5% | ≤5.5% |
| Stagnation Temperature | 220m2/KW | ≥260m2/KW |
| Solar Irradiation for Water Temperature Rise | ≤2.9MJ/ m2 | ≤2.8MJ/ m2 |
| Coefficient of Average Heat Loss | ≤0.65W/(m2.) | ≤0.60W/(m2.) |
| Structure of Selective Coating | Al-N/Al | Cr-Al-N/Cu |
| Vacuum | ≤3.0*10-3Pa | |
| Maximum Strength | 0.6 MPa | |
| Ratio of Solar Transmission | ≥0.89 ( AM 1.5 ISO9806-1: 1994) | |
| In term | Specification | ||
| Diameter of Outer/Inner Tube | Φ47/37 | Φ58/47 | Φ70/58 |
| Length of Tube | 1200, 1500 1600, 1800 1920 | 1500, 1600, 1800 1920, 2000, | 1500, 1800 |
| Thickness of Tube | 1.60±0.15 | ||
Note: The length of the tubes can be adjusted from 1200mm to 2000mm according to the buyers requirement.
Model No.: 47*1500/1600/1800; 58*1600/1800/1...
Features: solar vacuum tube
1) high quality and reasonable price
2) environmental friendly
3) nice design
4) ISO9001:2000
Model No.: VT-02
Features: We have 15 years experience to produce vacuum tube,
there are 300 production lines in the factory.
Model No.: Pressurized 100-750L
Features: Solar hot water tank,water cylinder
Heat exchanger: Diameter 12 16 25mm
Good price
strong warranty 5 years
100-720L
Model No.: SFTC
Features: solar water heater parts
1.bottom tube holder
2.Size:47,58mm
3.Material:ABS/NYLON
4.Solar water heater parts tube holder
Model No.: vacuum tube
Features: solar vacuum tube:
1)best price and high quality
2)ce,iso certificated
3)heating more quickly
Model No.: OEM
Features: seal
Materials:silicone rubber,NBR,NR,FPM,EPDM, silicone, SBR,PU
Specifications: Molded, OEM
Model No.: 2L ---10000L
Features: BESTANK is producing for worldwide with European high quality standarts. All BESTANK tanks and membranes have CE97/23 EC ,.
Model No.: NGD-SN-00096
Features: 1,Water Heater Sensor
2, UL approval ,RoHS compliant
3, Widely used for Water Heater;air-condition;Bean Juice Maker
Model No.: JS-DJR-6
Features: Type: Solar Water Heater Parts
Brand Name: Jiushun
Model Number: 58 mm
Style: electrical heating
Model No.: 58/47*1800
Features: outer tube diameter: 58mm
inner tube diameter: 47mm
length: 1.5-1.8m
for 15 years warranty
OEM is welcomed
Model No.: SFSR
Features: vacuum tube solar water heater parts
1.bottom tube holder
2.evacuated tube holder
3.vacuum tube solar water heater parts
Model No.: sijiking-pressured water tank
Features: different liters and material for it.single or double copper coil in it.cold water can be heated twice.automatic running system