Giant P480, Инструкция по эксплуатации / Руководство по ремонту и обслуживанию

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Pump Specifications
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.
Common Specifications:
US Metric
3
Horsepower Ratings:
We recommend a 1.15 service factor be specified when selecting an electric motor as the power source.
To compute electric motor horsepower required, use the following formula: HP = (GPM X PSI) / 1450.
The formula to determine the horsepower required for a gas engine is: HP = (GPM X PSI) / 1150.
The formula to determine the horsepower required for a diesel engine is: HP = (GPM X PSI) / 1250.
For the Application of a Hydraulic Motor:
To Determine the Torque of a Hydraulic Motor -- (GPM x PSI x 36.77) / RPM = Torque (in-lbs)
Calculating RPM / GPM of Pump:
A pump must be connected to an electric motor or gas or diesel engine with the correct ratio of pulleys
and belts to attain the required speed and GPM. The use of a Variable Frequency Drive (VFD) may also
be used to control the RPM of a properly sized electric mot or when variable flows are required.
(Max. Pump RPM / Rated Pump GPM) x Required Pump GPM = Required Pump RPM
To calculate a pulley diameter one (1) pulley diameter and the required pump RPM must be known:
(Pump RPM x Pump Pulley Diameter) / Motor RPM = Motor Pulley Diameter
(Motor RPM x Motor Pulley Diameter) / Pump RPM = Pump Pulley Diameter
Inlet Pressure ....................... -4.35 to 145 PSI .... -0.3 to 10 Bar
Max. Temp. ...........................104
o
F ................................. 40
o
C
Inlet Ports ............................................................. (2) 1/2” BSP
Discharge Ports ....................................................
(2) 3/8” BSP
Shaft Rotation ........................... Top of pulley towards fluid end
Crankshaft Diameter ....................................................... 28mm
Key Width ......................................................................... 8mm
Shaft Mounting .......................................................Either side
1
Weight ..................................46 lbs. ............................... 21 kg
Crankcase Capacity .............
30 fl.oz. ........................ 0.9 Liters
1
NOTES:
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 instruc-
tions as necessary for the proper as-
sembly sequence.
U.S. Measurements
Max. Flow Max. Discharge Pressure Max. Speed Power Req'd. Plunger Diameter Stroke Gallons per Rev.
Model GPM PSI RPM BHP in in gal/rev
P414 3.1 10,150 1450 21.7 0.55 0.94 0.00214
P460 3.2 7250 1450 16 0.55 0.94 0.00221
P480 3.8 7250 1450 19 0.55 0.94 0.00262
Metric Measurements
Max. Flow Max Discharge Pressure Max. Speed Power Req'd. Plunger Diameter Stroke Liters per Rev.
Model L/min Bar RPM kW mm mm L/rev
P414 11.8 700 1450 16.2 14 24 0.0081
P460 12.3 500 1450 11.9 14 24 0.00837
P480 14.5 500 1450 14.2 14 24 0.00992