vacuum-Test-9-6-2023

00001: Ensure complete emptying of air

Step	Step description	Expected result	Result
precondition	system is off
Switch On the system	turn on the pump	95% vacuum	negative
Having a leak	leakage in places: welding-flanges.	Seal the leakage places	positive
Switch Off the system	turn Off the pump	the pump stops pulling out the air	positive
Silicon use	Put silicon in places where air leaks	Stop leakage and get 95% vacuum when we restart the pump.	positive
Postcondition	System is off

Analysis of the test results:

at first, we cleaned the stainless tube with special and precise tools;

after cleaning, we noticed a small hole due to a welding error.

In order to find out if there is still air leakage, we will re-test the application of soapy water on the surface of the device and the air pressure in the device.

When we find bubbles that appear, this indicates an air leak in this place.

these flanges had a leak:

what we have to do

we will add silicone around the flanges