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Conveying System Mechanical Components Chapter 3: Installation 50 of 138
Single Line Y-Tube System Considerations
• 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 SSR03 or SSR06 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 23: Recommended Single-Line Y-Tube Installation