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Volume........................................................................................................ Up to 17.6 GPM
Discharge Pressure ..................................................................................... Up to 1200 PSI
Inlet Pressure .............................................................................................. Up to 90 PSI
Speed .......................................................................................................... Up to 570 RPM
Plunger Diameter........................................................................................ 36 mm
Stroke.......................................................................................................... 40 mm
Crankcase Oil Capacity .............................................................................. 116 fl.oz.
Temperature of Pumped Fluids .................................................................. Up to 221
o
F
Inlet Port ..................................................................................................... 1" BSP
Discharge Port ............................................................................................ 1-1/4" BSP
Crankshaft Mounting.................................................................................. Either Side
Shaft Rotation................................................................................ Top of Pulley Towards Fluid End
Weight......................................................................................................... 110 lbs.
Crankshaft Diameter................................................................................... 35 mm
LP121HT PULLEY SELECTION AND HORSEPOWER
REQUIREMENTS
RPM GPM 300 PSI 600 PSI 900 PSI 1200 PSI
200 6.2 1.3 2.6 3.8 5.1
300 9.3 1.9 3.8 5.8 7.7
400 12.4 2.6 5.1 7.7 10.2
500 15.5 3.2 6.4 9.6 12.8
570 17.6 3.7 7.3 11.0 14.6
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:
(GPM X PSI)/1450 = HP
Specifications
LP121HT Pump
3EXPLODED VIEW - LP121HT