Specifications

lar water heater on selling
2.no pressure solar water hester
3.own vacuum tube production line
4.low price solar heater

           GDL-NPGG-24-240 Pre-Heated Solar Water Heater with Heat Exchanger          

  Material and Features:                                                                                                

Tank	Inner Tank Thickness	0.5 mm
	Outer Tank Thickness	0.4 mm
	Inner Tank Material	SS 304
	Outer Tank Material	Galvanized steel/Stainless steel
	Color	According to customers'
Bracket	Bracket Material	Galvanized steel Powder Coated
	Thickness	1.2mm
	Color	According to customers'
Reflector	Material	stainless steel/Aluminium Alloy
	Type	Strip Type
Insulation	Material	PUF
	Thickness	50 mm
Capacity	80 to 420 Liters
Warranty	5 years

  Vacuum Tube Material and Features:                                                                      

Tube structure		All-glass double-tube co-axial structure
Glass material		Borosilicate 3.3glass
Outer tube diameter and glass thickness		Φ =47± 0.7mm & T=1.6mm ± 0.15mm
		Φ =58± 0.7mm & T=1.6mm ± 0.15mm
Inter tube diameter and glass thickness		Φ =37± 0.7mm & T=1.6mm ± 0.15mm
		Φ =47± 0.7mm & T=1.6mm ± 0.15mm
Tube length		1500mm, 1800mm
	Coating material	AL-N/SS/Cu
Absorber coating	Sediment method	Three Targets magnetron sputtering plating
	Absorption	a: ≥92%(AM1.5)
	Emittance	ε ≤ 3.4% (80° C± 5° C)
Vacuum degree		P ≤ 5.0× 10 -3 Pa
Hail resistance		Φ 25 mm
Pressure-endure		0.8 Mpa
Temperature-endure		250° C
Life		> 15 years

 Working Principle:                                                                                                         

 

 Details Pictures:                                                                               

 

 

 

Loading Ability:                                                                           

 

Model	Vacuum Tube		Tank	Loading Qty
	Size /mm	No	Capacity/L	20GP	40GP	40HQ
GDL-NPSS-100	58×1800	10	100	66	137	160
GDL-NPSS-120	58×1800	12	120	58	121	142
GDL-NPSS-150	58×1800	15	150	49	102	119
GDL-NPSS-180	58×1800	18	180	40	83	97
GDL-NPSS-200	58×1800	20	200	36	76	89
GDL-NPSS-240	58×1800	24	240	32	67	78
GDL-NPSS-250	58×1800	25	250	31	64	75
GDL-NPSS-300	58×1800	30	300	25	53	62

 

Thickness Measure and Argon Welding                                                                    

 

 

 

 

Main Production Line                                                                                                    

 

 

 

Quality Control                                                                                                               

 

 

 

Certificates                                                                                                                     

 

 

 

Exhibition