Giant MP4120-SWS, Инструкция по эксплуатации / Руководство по ремонту и обслуживанию

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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.
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 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 ........................ 145 PSI (10 Bar)
Crankshaft Diameter.............. 1.10” (28 mm)
Crankcase Oil Capacity ......... 33.8 fl. oz. (1 L)
Inlet Ports .............................. (2) 1” NPT
Discharge Ports ..................... (2) 3/4” NPT
Stroke (except MP4126) ........ 1.02” (26 mm)
Stroke (MP4126 only) ............ 1.18” (30 mm)
Weight ................................... 66 lbs (30 kg)
Shaft Rotation............Top of Pulley Toward Fluid End
Materials Used for MP Pumps:
Manifold ........ Aluminum Bronze
Plungers ....... Solid Ceramic Oxide
Valves ........... High Grade Stainless Steel
Seals............. Nitrile with Fabric Reinforcing
Gear End ...... Spheroidal Cast Iron
MP4120-SWS/MP4124-SWS PUMP SPECIFICATIONS
Max.
Flow
Max. Pres-
sure
Max.
Speed
Power
Required
Max.
Temperature
Plunger
Diameter
NPSH Re-
quired
Model GPM PSI RPM HP °F in Ft-Head
MP4120-SWS 8.9 3625 1450 23.1 160 0.787 24.6
MP4124-SWS 12.8 2610 1450 24 160 0.945 27.9
U.S. Measurements
Max.
Flow
Max. Pres-
sure
Max.
Speed
Power
Required
Max.
Temperature
Plunger
Diameter
NPSH Re-
quired
Model L/min bar RPM kW °C mm mWs
MP4120-SWS 33.8 250 1450 17.2 70 20 7.5
MP4124-SWS 48.6 180 1450 17.9 70 24 8.5
Metric Measurements