Is the water cast iron pipe 100% for hydrostatic test?
After the site installation, according to the standard to test pressure, but a lot of construction units are not pressure test
Domestic manufacturers, such as steel group wing ductile iron pipe limited liability company, Xinxing Ductile iron pipes, Saint Gobain pipe is 100% factory test pressure, test pressure in 3.2-5.0MPa according to different specifications.
As long as it's a water pipe, it must be tested. Otherwise, how do you know it leaks?.
