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Burnham 81433101R16-1/10 User Manual

Page 22

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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 1: Two-Pipe Installation

Lift "H"

Maximum Length of Tubing

"H" + "R"

3/8" OD

Tubing (3 GPH)

1/" 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 (340 RPM) -

Two Pipe Systems

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