Description

Non-pressurized solar water heater

Material of out tank

0.31-0.4mm thickness color steel/ fluorine carbon steel

Material of inner tank

Food grade 0.31-0.4mm thickness SUS304 stainless steel

Tank insulating layer

55mm 45kg/m³ high-density polyurethane foamed

Inlet and outlet hole

Male G 1/2, 3/4

Max pressure

0.05 Mpa

Solar collector tube

3.3 Borosilicate glass with N/Al coating

Thickness of glass tube

1.6mm

Vacuum tube tightness

P≤0.005 Pa

Absorption

as=0.93-0.96(AM1.5)

Emission ratio

εh=0.04-0.06(80C±5C)

Idle sunning property parameters

Y=220~260m2.C/KW

Average heat loss coefficient

ULT=0.6~0.7W/(m2.C)

Bracket:

1.5mm thickness Galvanized Steel

Welding:

Argon arc welding

Fastening pieces:

Made of stainless steel screw

Tube quantity

18 tube  58x1,800mm

Tank capacity

250L