Giant P435, Operating Instructions/ Repair And Service Manual

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3
Specifications
Model P455B
U.S. ................................. (Metric)
Volume .................................................... Up to 5.5 GPM ............... (20.8 LPM)
Discharge Pressure (Continuous) ........... Up to 4,350 PSI .............. (300 bar)
Discharge Pressure (Intermittent)* .......... Up to 5,075 PSI* ............. (350 bar*)
Inlet Pressure .......................................... -4.35 to 145 PSI .............. (-.3 to 10 bar)
Stroke ......................................................0.787” .............................. (20mm)
RPM ................................................................................................. Up to 1450 RPM
Plunger Diameter ....................................0.708” .............................. (18mm)
Temperature of Pumped Fluids ...............Up to 158
o
F .................... (70
o
C)
Inlet Ports ......................................................................................... (2) 3/4" BSP
Discharge Ports ............................................................................... (2) 1/2" 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)
NPSHR ................................................... 28.5 Foot of Head ........... 8.7 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 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 instruc -
tions as necessary for the proper assembly sequence.
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 factor
be specified when selecting an elec -
tric motor as the power source. To
compute specific pump horsepower
requirements, use the following for-
mula:
HP = (GPM X PSI) / 1450
SPECIAL NOTE:
The theoretical gallons per revolution
(gal/rev) is 0.00379.To find specific
outputs at various RPM, use the formula:
GPM = 0.00379 x RPM
P455B HORSEPOWER REQUIREMENTS
RPM GPM 2000
PSI
3000
PSI
4350
PSI
5075*
PSI
920 3.5 4.8 7.2 10.5 12.2
1050 4.0 5.5 8.3 12.0 14.0
1185 4.5 6.2 9.3 13.5 15.8
1315 5.0 6.9 10.3 15.0 17.5
1450 5.5 7.6 11.4 16.5 19.3
*
Intermittent Duty
*
Intermittent Duty