Manuals through 2025 now available!
Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.
LEMON is the spiritual successor to CHARM, I recommend you try it!
Link:
lemon-manuals.la or
lemon-manuals.org.ua
(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)
Or, hide this message:
temporarily or
permanently
Vacuum Check Valve: Testing and Inspection
Testing and InspectionA
vacuum check valve blocks airflow in one direction and frees airflow in the other direction.
The check side of this valve will hold the highest vacuum seen on the vacuum side. If not, replace it.
