Issue
When the valve is installed, it is impossible to see the direction of the sleeve
Environment
VTRE
7317039000
7317041000
7317045000
7317049000
7317053000
7317057000
7317061000
7317065000
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7317069000
Cause
In order to know the position of the sleeve inside the valve, you need to know the relationship between the sleeve and the "cut" on the stem.
Resolution
The cut in the stem indicates the position of the sleeve. If the cut is at 3 o'clock, the port at 3 o'clock is closed.