Specifications |
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...................................................................................................Model P221A | Up to 2.21 GPM |
Volume | |
Discharge Pressure | Up to 2500 PSI* |
Inlet Pressure | Up to 90 PSI |
RPM | Up to 1750 RPM |
Plunger Diameter | 18mm |
Stroke | 7.0mm |
Temperature of Pumped Fluids | Up to 160oF |
Inlet Ports | (2) 1/2" BSP |
Discharge Ports | (2) 3/8" BSP |
Shaft Rotation | Top of Pulley Towards Fluid End |
Crankshaft Diameter | 24mm |
Key Width | 8mm |
Shaft Mounting | Right Side Facing Manifold |
Weight | 11 lbs. 11oz. |
Crankcase Oil Capacity | 7.5 fl.oz. |
Extended Crankcase Oil Capacity | 9.0 fl.oz. |
Volumetric Efficiency @ 1750 RPM | 0.96 |
Mechanical Efficiency @ 1750 RPM | 0.85 |
Consult the factory for special requirements that must be met if the pump is to operate beyond one or more of the limits specified above.
NOTE:
In order to drive the pump from the side opposite the present shaft extension, simply remove the valve casing from the crank- case and rotate the pumps 180 degrees to the desired position. Be certain to rotate the seal case (item #20) as well, so that the weep holes are down at the six o'clock position. Exchange the oil fill and the oil drain plugs, also. Refer to the repair instructions as necessary for the proper assembly sequence.
P221 HORSEPOWER REQUIREMENTS
RPM | GPM | 1000 PSI | 1500 PSI | 2000 PSI | 2500 PSI |
1150 | 1.4 | 1.0 | 1.4 | 1.9 | 2.4 |
1450 | 1.8 | 1.2 | 1.9 | 2.5 | 3.1 |
1750 | 2.2 | 1.5 | 2.3 | 3.0 | 3.8 |
*Pressure washer duty only
SPECIAL NOTE:
The theoretical gallons per revolution (gal/rev) is 0.00126.
To find specific outputs at various RPM, use the formula: GPM = 0.00126 x RPM
HORSEPOWER RATINGS:
The rating shown are the power requirements for the pump. Gas engine power outputs must be approximately twice the pump power requirements shown above.
We recommend a 1.15 service factor be specified when selecting an electric motor as the power source. To compute specific pump horse power requirements, use the following formula:
HP = (GPM X PSI) / 1450
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