Giant GP7145 Specifications Model GP7255A, GP7255A Pulley Selection & Horsepower Requirements

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Specifications

Model GP7255A

 

U.S

(Metric)

Volume (Continuous)

65.8 GPM

(250 LPM)

Volume (Intermittent)

80 GPM*

(303 LPM)*

Discharge Pressure (Continuous)

1500 PSI

(100 bar)

Discharge Pressure (Intermittent)

2000 PSI

(140 bar)*

Speed (Continuous)

700 RPM

Speed (Intermittent)

851 RPM

Inlet Pressure (maximum)

145 PSI

(10 bar)

Plunger Diameter

2.17”

55mm

Plunger Stroke

2.0”

52mm

Crankshaft Diameter

1.9”

48mm

Key Width

0.6”

14mm

Crankshaft Mounting

Either side

Shaft Rotation

Top of pulley towards manifold

Temperature of Pumped Fluids

Up to 140 oF

(60 oC)

Inlet Ports

(2) 2-1/2" NPT

Discharge Ports

(2) 1-1/4" NPT

Weight

455 lbs

(206 kg)

Crankcase Oil Capacity

1.6 Gal

(6.0 liter)

Fluid End Material

Spheroidical Cast Iron

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.

PULLEY INFORMATION

Pulley selection and pump speed are based on a 1725 RPM motor and "B" section belts. When selecting desired GPM, allow for a ±5% tolerance on pumps output due to variations in pulleys, belts and motors among manufacturers.

1.Select GPM required, then select appropriate motor and pump pulley from the same line.

2.The desired pressure is achieved by selecting the correct nozzle size that corresponds with the pump GPM.

HORSEPOWER INFORMATION Horsepower ratings shown are the power require- ments for the pump. Gas engine power outputs must be approximately twice the pump power requirements shown above.

We recommend that a 1.1 service factor be specified when selecting an electric motor as the power source. To compute specific pump horsepower requirements, use the following formula:

(GPH X PSI) / 1450 = HP

GP7255A PULLEY SELECTION & HORSEPOWER

REQUIREMENTS

RPM

GPM

800 PSI

1000 PSI

1300 PSI

1500 PSI

2000 PSI*

479

45.0

25.7

32.1

41.8

48.2

64.3

531

49.9

28.5

35.6

46.3

53.5

71.3

585

55.0

31.4

39.3

51.1

58.9

78.6

638

60.0

34.3

42.9

55.7

64.3

85.7

700

65.8

37.6

47.0

61.1

70.5

94.0

851

80.0*

45.7

57.1

74.3

85.7

114.3

* Intermittent Duty Only!

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Contents Models GP7145 and GP7255A Installationinstructions Specifications Model GP7145 MetricExploded View GP7145 and GP7255A Parts List GP7145 and GP7255A Specifications Model GP7255A GP7255A Pulley Selection & Horsepower RequirementsGP7145 and GP7255A Torque Specifications Repair Kits GP7145 and GP7255AGP7145 and GP7255A Repair Instructions To Check ValvesPump System Malfunctions GP7145 and GP7255A Dimensions Inches mm Page Giant Industries Limited Warranty

GP7145 specifications

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