Installation
Attaching the Siphon and Vacuum Lines with Factory Installed Siphon Assemblies
18
Attaching the Siphon and Vacuum Lines with Factory Installed Siphon
Assemblies
Disconnect, lock out, and tag power at the panel before servicing the pump
When servicing equipment, use non-sparking tools and use caution when removing or
installing equipment to avoid generating a spark.
1. Remove the 1/4 inch pipe plug from the siphon nozzle.
Care should be taken to insure that the internal portions of the siphon nozzle and parts
included in the siphon kit are clean and free of debris or contamination during assembly.
Before installing pipe threads apply an adequate amount of fresh, UL classified for
petroleum, non-setting thread sealant.
2. Coat both of the male threads of the 1/4 X 2 inch long nipple with pipe sealant. Thread one end of the nipple
into the siphon nozzle and the other end into the 1/4 x 3/8 inch reduction bushing.
3. Apply pipe sealant to the male threads of the reduction bushing and thread it into the 3/8 inch female elbow.
4. Apply pipe sealant to the male threads of the siphon check valve and thread it into the 3/8 inch female elbow.
5. Apply pipe sealant to the male pipe threads of the compression fitting elbow and thread it into the 1/4 inch
hole in the siphon check valve.
Figure 9. Installing A Siphon And Vacuum Lines
rj/051-301-13.eps
Vacuum line minimum
3/8" tubing to high
point of piping system
Minimum 2" NPT siphon line by
contractor must pitch upward (to
tank with pump) about 1/8" per foot.
3" (76mm)
3" NPT line
to dispenser
3" (76mm)
Vent pipe
Fill
pipe
Fill
pipe
3/8" NPT elbow
3/8" Bushing
1/4" NPT
nipple
Siphon
nozzle
3/8" tubing
elbow
3/8" tubing
provided by
contractor
Siphon line
check valve
