AEC VacTrac Series Conveying Systems - Manual (Page 54)

Single Line Y-Tube System Considerations
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Single line Y piping systems use a common material line for all vacuum receivers
connected to a pump and are typically used to convey material from a central supply to
several stations.
If you are installing a single line Y system, use Y tubes on the material lines. A Y tube
is installed with the branch arm leading to the next station on top and the straight
portion that supplies material to the station underneath.
Connect a short-radius bend to the straight portion as close to the Y as possible.
You must connect a minimum 2-foot (61 cm) straight length of tube to this short radius
bend on the horizontal before the material tubing drops to the receiving point. If
possible, incline this tube approximately
1 /
8
” per foot (1 cm per meter).
On single line Y systems, you must install check valves on material inlet tubes inside
vacuum receivers.
Note: Do not use SRH01 or SRC02 vacuum receivers on single line Y systems.
You can install a long- or short-radius bend on the last station, where a Y-tube is not
needed.
Figure 27: Recommended Single-Line Y-Tube Installation
Conveying System Mechanical Components Chapter 3: Installation 53 of 136