Giant GP5122, Руководство по эксплуатации

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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:
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. Pum p RPM / Rated Pump GPM) x Required Pump GPM = Required Pump RPM
To calc ulate 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
Common Specifications:
Inlet Pressure .. -4.35 to 145 PSI (-0.3 to 10 Bar)
Max. Temperature ..................140
o
F (60
o
C)
Crankshaft Diameter.............. 1.38” (35mm)
Crankcase Oil Capacity ......... 1.2 Gal. (4.6 L)
Inlet Ports .............................. (2) 3/4” BSP
Discharge Ports ..................... (2) 1/2” BSP
Stroke .................................... 1.81” (46mm)
Weight ................................... 176 lbs (80 kg)
Shaft Rotation ..Top of Pulley Toward Fluid End
Materials Used for MP Pumps:
Manifold ........ AISI 303 Stainless Steel
Plungers ....... Solid Ceramic
Valves ........... Duplex Steel
Seals............. Aramide/Teflon Packing
Gear End ...... Spheroidal Cast Iron
Crankshaft .... Drop-forged and case-hardened
GP5120/GP5122/GP5124 SERIES PUMP SPECIFICATIONS
Max.
Flow
Max.
Pressure
Max.
Speed
Power
Req’d.
Max.
Temp.
Plunger
Diameter
NPSH
Required
Model GPM PSI RPM HP °F in Ft-Head
GP5120 10.5 8700 1000 63.3 140 0.787 27.9
GP5122 11.9 7250 930 59.0 140 0.866 27.9
GP5124 13.2 5800 850 53.8 140 0.945 27.9
Max.
Flow
Max.
Pressure
Max.
Speed
Power
Req’d.
Max.
Temp.
Plunger
Diameter
NPSH
Required
Model L/min Bar RPM kW °C mm mWs
GP5120 40.0 600 1000 47.2 60 20 8.5
GP5122 45.0 500 930 44.0 60 22 8.5
GP5124 50.0 400 850 40.1 60 24 8.5