Filter
Top Products
22
C. Two-Pipe Oil Lines.
1. For two-pipe systems where more lift is required,
the two-stage fuel unit is recommended. Table
2 (single-stage) and Table 3 (two-stage) show
allowable lift and lengths of 3/8-inch and ½-inch
OD tubing for both suction and return lines. Refer
to Figure 17.
Figure 17: Two-Pipe Installation
Lift "H"
Maximum Length of Tubing
"H" + "R"
3/8" OD
Tubing (3 GPH)
1/2" OD
Tubing (3 GPH)
0' 93' 100'
2' 85' 100'
4' 77' 100'
6' 69' 100'
8' 60' 100'
10' 52' 100'
12' 44' 100'
14' 36' 100'
16' 27' 100'
18' --- 76'
Table 3: Two-Stage Units (3450 RPM) -
Two Pipe Systems