One, four steps energy-saving meaning:
The state has clear regulations on energy conservation and emission reduction of residential buildings, and all provinces and cities have promulgated corresponding local standards 'Energy Conservation Design Standards for Residential Buildings'.
In 1986, the standard of 30% energy saving was introduced, which is called 'one-step energy saving'.
In 1995, the state raised the energy saving standard to 50 percent, which is called 'two-step energy saving'.
At present, 65% of the energy saving standard is generally implemented in China, which is called 'three-step energy saving'.
Implementing the 75% energy saving standard is called the 'four-step energy saving'.
Two, four-step energy-saving features:
Low diathermy and high diathermy are required, which requires the shading coefficient Sc value of glass to be very high and U (K) to be very low.
Three, four steps of energy saving requirements for glass:
The shading coefficient of glass is greater than that of the whole window. (High permeability single silver)
The heat transfer coefficient of glass is less than that of the whole window. (Three glass, two air, double warm edge, double argon)
Four, four step energy-saving standard configuration:
5 White glass tempered +12Ar (warm side) +5 white glass tempered +12Ar (warm side) +5mm single silver high-permeability low-E tempered.
Five, the current domestic four-step energy-saving products:
South Glass Super-SE-1N series
◆ Glass configuration: 5mm white glass +12Ar+5mm white glass +12Ar+ 5mmlow-E #5.
◆ Glass U value 1.05, SC value 0.67; Transmittance > 70.
◆ Use Tylenol wind warm edge septa;
◆ Argon initial concentration above 90%;
◆ Low-E is placed on the 5# surface.
Xinyi XETN0187-T series
◆ Glass configuration: 5mm white glass +12Ar+5mm white glass +12Ar+ 5mmlow-E #5.
◆ Glass U value 1.02, SC value 0.67; Transmittance > 70.
◆ Use Tylenol wind warm edge septa;
◆ Argon initial concentration above 90%;
◆ Low-E is placed on the 5# surface.
* Haiyang Shunda adopts Swiss Baichao automatic line, fully meet the four-step energy-saving products and high-end doors and Windows, curtain wall energy-saving and technical requirements.