5
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.
1
NOTE:
In order to drive the pump from the side opposite the present shaft extension, simply
remove the valve casing from the crankcase 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.
HORSEPOWER RATINGS:
The rating shown are the power
requirements for the
pump. Gas
engine power outputs must be ap-
proximately twice the pump
power requirements shown above.
We recommend a 1.15 service fac-
tor be specified when selecting an
electric motor as the power source.
To compute specific pump horse-
power requirements, use the follow-
ing formula:
HP = (GPM X PSI) / 1450
SPECIAL NOTE:
The theoretical gallons per revolution
(gal/rev) is 0.00566. To find specific
outputs at various RPM, use the
formula: GPM = 0.00566 x RPM
Specifications
Model P423-5100
U.S.
(Metric)
Volume
............................................................................
Up to 8.2 GPM
.........................
(31.1 LPM)
Discharge Pressure ........................................................
Up to 3000 PSI
............................
(200 bar)
Power Required
..............................................................
16.4 BHP
........................................
12.2 kW
Inlet Pressure .................................................................
-4.35 to 145 PSI
..................
(-0.3 to 10 bar)
Stroke .............................................................................
0.79”
................................................
(20mm)
Crankshaft Speed
.....................................................................................................
Up to 1450 RPM
Plunger Diameter............................................................
0.87”
................................................
(22mm)
Temperature of Pumped Fluids
......................................
Up to 160
o
F
....................................
(70
o
C)
Inlet Ports ...........................................................................................................................
(2) 1” BSP
Discharge Ports ...............................................................................................................
(2) 3/4” BSP
Shaft Rotation
......................................................................................
Top of pulley towards manifold
Crankshaft Diameter
.......................................................
1.102”
..............................................
(28mm)
Key Width
.......................................................................
0.315”
................................................
(8mm)
Shaft Mounting
..................................................................................................................
Either side
1
Weight ............................................................................
38.3 lbs
..........................................
(17.4 kg)
CrankcaseCapacity
........................................................
30.4 fl.oz.
....................................
(0.9 liters)
Volumetric Efficiency @ 1450
.....................................................................................................
(0.95)
Mechanical Efficiency @ 1450
...................................................................................................
(0.83)
NPSHR
...........................................................................
21 ft. of head
.................................
6.4 mWs
P423-5100 Horsepower Requirements
RPM GPM
1000
PSI
1500
PSI
2000
PSI
3000
PSI
900
5.1
3.6
5.3
7.1
10.6
1050 5.9
4.1
6.1
8.1
12.2
1160 6.6
4.6
6.9
9.1
13.7
1300 7.4
5.1
7.7
10.2 15.3
1450 8.2
5.7
8.5
11.2
17.0
