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Burnham LEDV SERIES User Manual

Page 21

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21

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.

TABLE 3: TWO-STA GE UNITS (3450 R PM)

TWO-PIPE SYTEMS

Lift "H"

(See Fig. )

Maximum Length of Tubing

"H" + "R" (See Figure)

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'

Figure 17: Two-Pipe Installation

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