red copper heat pipe solar vacuum tube - from 1.2 to 2.1

1.CE,ISO,CCC,SRCC, 2.high heat resistance, 3.high cold resistance, 4.high hail resistance - more info check here: http://www.sourcingappliances.com/red-copper-heat-pipe-solar-vacuum-tube-11139032/

Quick Brief

Type: Solar Water Heater Parts Place of Origin: Zhejiang China (Mainland) Brand Name: Bao Guang solar vacuum tube 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.CE,ISO,CCC,SRCC

2.high heat resistance

3.high cold resistance

4.high hail resistance

Business Terms:

Port: shanghai/ningbo

Minimum Order Quantity: 300 Piece/Pieces

Supply Ability: 30000 Piece/Pieces per Day

Payment Terms: L/C,T/T

Contact Supplier

Product Packagings & Delivery Terms:

Packaging Detail: packed by carton with PE fom insinde

Delivery Detail: 7 days after po

Specifications and Product Details:

Features:

Vacuum tube
High solar-thermal conversion and low heat loss
Stable advanced coating up to 380
Long time warranty to 15 years
High level vacuum ensure operation under cold weather

Vacuum Tube technology:

Models	47×150	58×180
Weight	1.35±0.12kg	2.29±0.18kg
Structure	All-glass-coaxial double-layer tubes	All-glass-coaxial double-layer tubes
Outer tube diameter	47±0.7mm	58±0.7mm
Inner tube diameter	37±0.7mm	47±0.7mm
Outer Tube thickness	1.6±0.15mm	1.8±0.15mm
Inner tube thickness	1.6±0.15mm	1.8±0.15mm
Tubes length	1542±4mm	1812±4mm
Material of coating	Al N/Al N-SS/Cu	Al N/Al N-SS/Cu
Absorptance	0.94~0.96	0.94~0.96
Emittance	0.04~0.06	0.04~0.06
Vacuum	P≤5×10-3pa	P≤5×10-3pa
Transmittance of Outer Tube	0.91	0.91
Stagnation temperature (height)	270~300	270~300
Heat-loss coefficient	≤0.6w/ m2*)	≤0.6w/ m2*)
Bearing hailstone ability	hailstone diameter25mm	hailstone diameter25mm
Pressure-endure ability	1MPa	1MPa