Specifications

1. copper pipes for air conditioner
2. copper pipe with nuts and insulated tubes
3. copper+aluminum connecting pipe

Test                                  Onside of insulator Inside of insulator 

Tensile Strength(( N/mm[kg/cm2])      31.5×10[3.2]           29.5×10[3.0]

Elongation                            70%                 100%

Compression strain  (%(25%))             3.4                   6 

Water-absorbing capacity (G/m2)          0.003                    0.008

Conductivity factor   

W/(m·k)[kcal/m2h°C]                                             0.038[0.033]

Temperature of heat resisting °C           -40°to 125°           -40°to 115°

 

copper connection pipes 

1/4+3/8(6.35+9.52) 

1/4+1/2(6.35+12.7)
3/8+5/8(9.52+15.88)

3/8+3/4(9.52+19.05)

1/2+3/4(12.7+19.05)