HP (Hewlett-Packard) LP450 Water Pump User Manual


 
3
Specifications
Model LP350
Volume ................................................................................................... Up to 22.6 GPM
Discharge Pressure ................................................................................. 2350 PSI
Inlet Pressure .......................................................................................... Up to 90 PSI
Maximum Crankshaft Speed ................................................................... Up to 1000 RPM
Plunger Diameter .................................................................................... 30mm
Stroke ..................................................................................................... 42mm
Crankcase Oil Capacity .......................................................................... 100 fl.oz.
Temperature of Pumped Fluids ............................................................... 140
o
F @1000 RPM
............................................................................................................... 160
o
F Up to 500 RPM
Inlet Port ................................................................................................ 1-1/4" BSP+
Discharge Port ........................................................................................ 1" BSP++
Shaft Mounting ...................................................................................... Either side
Shaft Rotation ............................................................................ Top of pulley towards manifold
Weight .................................................................................................... 105 lbs.
Crankshaft Diameter ............................................................................... 35mm
+
++
PULLEY INFORMATION
Pulley selection and pump speed are based on a 1725
RPM motor and "B" section belts. When selecting
desired GPM, allow for a ±5% tolerance on pumps
output due to variations in pulleys, belts and motors
among manufacturers.
1. Select GPM required, then select appropriate
motor and pump pulley from the same line.
2. The desired pressure is achieved by selecting the
correct nozzle size that corresponds with the pump
GPM.
HORSEPOWER INFORMATION
Horsepower ratings shown are the power require-
ments for the pump. Gas engine power outputs
must be approximately twice the pump power
requirements shown above.
We recommend that a 1.1 service factor be specified
when selecting an electric motor as the power source.
To compute specific pump horsepower requirements,
use the following formula:
HP = (GPM x PSI) / 1440
LP350 PULLEY SELECTION AND HORSEPOWER
REQUIREMENTS
PUMP
PULLEY
MOTOR
PULLEY
RPM GPM 500 PSI 1000 PSI 2000 PSI 2300 PSI
12.75"
3.95"
500
11.3
3.9
7.8
15.7
18.0
12.75"
4.95"
640
14.5
5.0
10.0
20.1
23.1
12.75"
5.75"
750
16.9
5.9
11.8
23.5
27.1
12.75"
6.15"
805
18.2
6.3
12.6
25.3
29.0
12.75" 6.55" 865 19.5 6.8 13.6 27.1 31.2
12.75" 6.95" 940 21.2 7.4 14.7 29.5 33.9
12.75" 7.50" 1000 22.6 7.8 15.7 31.4 36.1