Instruction manual
50
TABLE 3: TWO-STAGE UNITS (3450 RPM) - 
 TWO PIPE SYSTEMS
TABLE 4: SINGLE-STAGE UNITS (3450 RPM) - 
 TWO PIPE SYSTEMS
Figure 27: Two Pipe Oil Lines
C.  TWO PIPE OIL LINES
1.  For two piped systems, where more lift is required, 
the two-stage fuel unit is recommended. 
  Table 3 (two-stage) and Table 4 (single-stage) show 
allowable lift and lengths of 3/8 inch and 1/2 inch 
OD tubing for both suction and return lines. Refer 
to Figure 27.
Lift "H"
(See Fig. 25)
Maximum Length of Tubing
"H" + "R" (See Figure 27)
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'
Lift "H"
(See Fig. 25)
Maximum Length of Tubing
"H" + "R" (See Figure 27)
3/8" OD
Tubing (3 GPH)
1/2" OD
Tubing (3 GPH)
0' 84' 100'
1' 78' 100'
2' 73' 100'
3' 68' 100'
4' 63' 100'
5' 57' 100'
6' 52' 100'
7' 47' 100'
8' 42' 100'
9' 36' 100'
10' 31' 100'
11' 26' 100'
12' 21' 83'
13' --- 62'
14' --- 41'
SECTION X: OIL PIPING (continued)










