Enertech Bentone B1FUV Classic, Installation And Maintenance Instruction

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06. INSTRUCTIONS PUMP TYPE BFP 41L3
Suction line tables
One-pipe system
Height Pipe diameter
H ø4 mm ø5 mm ø6 mm
m m m m
With an underlying tank a one-pipe
system is not recommended
Two-pipe system
Height Pipe diameter
H ø6 mm ø8 mm ø10 mm
m m m m
0 17 53 100
-0,5 15 47 100
-1,0 13 41 99
-1,5 11 34 84
-2,0 9 28 68
-2,5 7 22 53
-3,0 5 15 37
-3,5 3 9 22
4,0 1 3 6
The suction line tables consist of theoretically calculated values where
the pipe dimensions and oil velocity have been matched so that turbulent
l ow will not occur. Such turbulence would otherwise result in increased
pressure losses and noise in the piping. A piping system consists normally
of drawn copper pipes and four bends, a non-return valve, a shut-off valve
and a pre i lter.
The sum of these individual resistances is negligible. The tables do not
include any lengths exceeding 100 m because experience shows that
longer lengths are not needed.
The tables apply to standard fuel oil of normal commercial quality ac-
cording to current standards. On commissioning with an empty tube
system the oil pump should not be run without oil for more than 5 mi-
nutes. The tables state the total length in metres of the suction line at a
nozzle capacity of 2.5 kg/h. Maximum allowed pressure at the suction
and return port is 2.0 bar.
One-pipe system
Height Pipe diameter
H ø4 mm ø5 mm ø6 mm
m m m m
4,0 51 100 100
3,5 45 100 100
3,0 38 94 100
2,5 32 78 100
2,0 26 62 100
1,5 19 47 97
1,0 13 31 65
0,5 6 16 32
Two-pipe system
Height Pipe diameter
H ø6 mm ø8 mm ø10 mm
m m m m
4,0 33 100 100
3,5 31
98 100
3,0 29 91 100
2,5 27 85 100
2,0 25 79 100
1,5 23 72 100
1,0 21 66 100
0,5 19 60 100
Mounting/dismounting return plug
One pipe system Two pipe system
3(3)
H
H
6.5 Suction line tables
H1 Alarm lamp
H2 Signal lamp (optional)