Copper tubes R410 and R22
The pressure produced by R410a refrigerant is 1.6 times that of R22 refrigerant, which requires high density of copper tube, strong compressive resistance, high purity of copper tube, and uniform thickness of copper tube wall. Therefore, the air-conditioning system of R410a refrigerant must use special R410a copper tube.
In the system installation, we can use the R410a copper pipe to replace the ordinary R22 copper pipe, but we can never replace the R410a copper pipe with the common R22 copper pipe.
Determine the quality of copper pipe
1. Generally, it is necessary to observe the appearance of copper tube to judge. First, it is to see the color of copper tube.Brass tubes, usually lighter in color.Some of the copper was plated with zinc, some of it zinc, and some of it was white.Poor quality copper, there are impurities in the copper pipe, with a hand bent into two pieces, there are black impurities.
2. Touch the inner and outer walls of the copper pipe with your hands to see if there are any defects such as sand holes, oxidation and fracture. If you are not confident, you can use sharp objects to scrape the top.After being scratched in the copper pipe, if it is the same as the outer wall, it indicates that the overall quality of this copper pipe piece is relatively high.But if the color or anything else is different, there’s a good chance that something like iron has been added to it.
3. General processing forming copper pipe, mainly divided into b.for hard and half hard and soft state, three kinds of different configuration flexibility is also different, generally can be bent brass to determine, high-quality copper pipe is very easy to turn off, but if it is hard to bend or bending crack will come later, showed that the quality of the brass fitting is not very good.
All the copper tubes we purchased are of high quality.
Good parts make good products.
HERO-TECH never fight war of price, only war of value.
Post time: Dec-14-2018
