Titanium tube on the 10 pressure tube fever normal?
According to DB ground radiation heating technical requirements require pre-test stage, the system is full of water, exhausted air, with pressure pump pressure test pressure,
In the next 30 minutes to repeat the work, interval of 10 minutes, do twice, the pressure down to the test pressure, after 30 minutes, the test pressure shall not be less than 60kPa above.
The main test phase, the main test should be done immediately after the completion of the test, is the test pressure, the regulator 2 hours to observe the pressure drop, if the pressure drop is not greater than 20kPa, that qualified
