Kohler 48RCLC

36 TP-7203 4/23
Flexible connections. Rigid mount the piping but protect it from vibration. Use flexible connections spanning a minimum of
152 mm (6 in.) between the stationary piping and the engine fuel inlet connection. Do not bend the flexible fuel line to make
up for misalignment of the fuel supply line and the generator set fuel inlet. Sharp bends can restrict fuel flow and increase the
possibility of flexible fuel line failure over time.
Model
Fuel
Corr.
Factor
Maximum Fuel Flow
Rate@ Full Load
(corrected)
Nominal Iron Pipe Size, in.
Pipe Length, m (ft) *
M
3
/hr
cfh
3.0
(10)
6.1
(20)
12.2
(40)
18.3
(60)
24.4
(80)
30.5
(100)
45.7
(150)
61.0
(200)
48RCLC
NG
0.962
25.8
909.9
1 1/4
1 1/4
1 1/2
2
2
2
2
2 1/2
LPG
0.633
14.1
498.2
1
1 1/4
1 1/4
1 1/2
1 1/2
1 1/2
1 1/2
2
60RCLB
NG
0.962
29.8
1053
1 1/4
1 1/2
2
2
2
2
2 1/2
2 1/2
LPG
0.633
16.0
564.1
1
1 1/4
1 1/4
1 1/2
1 1/2
1 1/2
2
2
Figure 20 Fuel Pipe Sizes
3.2 Gas Regulators
Gas regulators reduce high incoming fuel pressures to lower levels acceptable for engines. See the generator set specification
sheet for fuel supply pressure requirements.
Primary gas regulator. The primary regulator reduces the high pressure from a tank or transmission line to the lower pressure
required by the secondary regulator on the engine. The fuel supplier provides the primary regulator. The fuel supplier is also
responsible for providing sufficient gas pressure to operate the primary regulator.
Secondary gas regulator. The secondary regulator is factory-installed on the generator set engine and controls the inlet
pressure to the engine. The models covered by this manual use an electronic pressure regulator.
Note:
The Direct acting Electronic Pressure Regulator (DEPR) and air/fuel mixer are specially calibrated emission-control devices. Do
not adjust the DEPR or the air/fuel mixer.