Giant P400 Series Operating Instructions/ Repair And Service Manual page 5

Volume ..........................................................Up to 8.2 GPM ............... (31.1 LPM)
Discharge Pressure ......................................Up to 2900 PSI ............... (200 bar)
Maximum Power Consumption .....................16.4 BHP ......................... (12.2 kW)
Inlet Pressure ................................................-4.35 to 145 PSI .............. (-.3 to 10 bar)
Stroke ...........................................................0.79" ................................ (20mm)
RPM ....................................................................................................... Up to 1450 RPM
Plunger Diameter ..........................................0.87" ................................ (22mm)
Temperature of Pumped Fluids .....................Up to 160
Inlet Ports ............................................................................................... (2) 1" NPT
Discharge Ports ..................................................................................... (2) 3/4" NPT
Shaft Rotation ...............................................Top of pulley towards manifold
Crankshaft Diameter .....................................1.102" .............................. (28mm)
Key Width .....................................................315" ................................. (8mm)
Shaft Mounting ....................................................................................... Either side
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 .........................................................21.0 foot of Head ............. (6.4 meters of Head)
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.
NOTES:
In order to drive the pump from the side opposite the present shaft ex-
tension, 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.
P423HORSEPOWER REQUIREMENTS
RPM GPM 1000 PSI 1500 PSI 2000 PSI 2900 PSI
900 5.1 3.5
1050 5.9 4.1
1160 6.6 4.6
1300 7.4 5.1
1450 8.2 5.7
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
U.S.
5.3 7.0 10.2
6.1 8.1 11.8
6.8 9.1 13.2
7.7 10.2 14.8
8.5 11.3 16.4
5
(Metric)
F ................... (70 C)
o o
HORSEPOWER RATINGS:
The rating shown are the power re-
quirements for the pump. Gas
engine power outputs must be
approximately 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
following formula:
HP = (GPM X PSI) / 1450
1