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NPSHR (FT-HEAD)
50 68 86 104 122 140 158 176 194 212 230
0
F
69.0
66.0
62.3
59.0
56.8
52.5
49.2
46.0
43.0
39.3
36.0
33.0
30.0
26.2
1
7
3
0
R
P
M
6
.
2
2
G
P
M
1
4
2
0
R
P
M
5
1
G
P
M
P318 NPSHR Chart
P318 HORSEPOWER
REQUIREMENTS
RPM GPM
750
PSI
1000
PSI
1500
PSI
1750
PSI
2000
PSI
810 3.0 1.6 2.1 3.1 3.7 4.2
1080 4.1 2.1 2.8 4.2 4.9 5.6
1450 5.5 2.8 3.8 5.7 6.6 7.6
1750* 6.6 3.4 4.6
6
Specifications
Model P318
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.
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
SPECIAL NOTE:
The theoretical gallons per revolution
(gal/rev) is 0.00375.
To find specific outputs at various RPM,
use the formula: GPM = 0.00375 x RPM
U.S. (Metric)
1450 RPM
Ratings (Continuous)...................................... 5.5 GPM @ 2000 PSI ...... (20.8 LPM @ 140 bar)
1750 RPM
Ratings (Intermittent) ..................................... 6.6 GPM @ 1000 PSI ...... (25 LPM @ 70 bar)
Inlet Pressure .................................................. 140 PSI............................. (10 bar)
Stroke.............................................................. 0.63”................................. 16mm
Plunger Diameter ............................................ 0.78”................................. 20mm
Temperature of Pumped Fluids ...................... Up to 160
o
F ..................... (71
o
C)
Inlet Ports................................................................................................... (2) 1/2" BSP
Discharge Ports.......................................................................................... (2) 3/8" BSP
Shaft Rotation ................................................. Top of pulley towards manifold
Crankshaft Diameter.................................................................................. 24mm
Key Width.................................................................................................. 8mm
Shaft Mounting .......................................................................................... Either side
1
Weight............................................................. 16 lbs. ............................... (7.26 kg)
Crankcase Oil Capacity .................................. 14.2 fl.oz. ......................... (0.42 liters)
Extended Crankcase Oil Capacity .................. 17 fl. oz. ........................... (0.5 liters)
*Positive Inlet Pressure Required