Specifications

Model GP7128

Flow

17.9 GPM

67.7 Liters/minute

Discharge Pressure

5800 PSI1

400 Bar 1

Crankshaft Speed

750 RPM

Inlet Pressure (maximum)

-4.35 to 145 PSI

........... -0.3 to 10 Bar

Plunger Diameter

1.1”

28 mm

Plunger Stroke

2.1”

52 mm

Crankshaft Diameter

1.9”

48 mm

Key Width

0.6”

14 mm

Crankshaft Mounting

Either side

Shaft Rotation

Top of pulley towards manifold

Temperature of Pumped Fluids

140 oF

60 oC

Inlet Ports

(2) 1-1/4" BSP

Discharge Ports

(2) 3/4" BSP

Weight

375 lbs

170 Kg

Crankcase Oil Capacity

1.6 Gal

6 Liters

Fluid End Material

Stainless Steel

Volumetric Efficiency @ 700 RPM

89%

Mechanical Efficiency @ 700 RPM

83%

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: 1This specification for maximum pressure and maximum speed apply to intermittent duty. When the pump is used for continuous duty and/or with water warmer than 100oF, these values must be reduced by 10%.

GP7128 HORSEPOWER REQUIREMENTS

RPM

GPM

3000 PSI

4000 PSI

5000 PSI

5800 PSI

300

7.2

15.4

20.6

25.7

29.8

400

9.5

20.4

27.1

33.9

39.4

550

13.1

28.1

37.4

46.8

54.3

600

14.3

30.6

40.9

51.1

59.2

650

15.5

33.2

44.3

55.4

64.2

700

16.7

35.8

47.7

59.6

69.2

750

17.9

38.4

51.1

63.9

74.2

HORSEPOWER RATINGS:

The rating shown are the power requirements for the pump. Gas engine power outputs must be approximately twice the pump power requirements shown above.

We recommend 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:

GPM X PSI = hp 1400

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Giant service manual Specifications Model GP7128, Horsepower Ratings

GP7128 specifications

The Giant GP7128 is a notable addition to the world of high-performance bicycles, designed for cycling enthusiasts who seek reliability and versatility in both urban settings and rugged terrains. This model embodies the commitment to quality and innovation that Giant is known for, making it a popular choice among riders of all levels.

One of the main features of the Giant GP7128 is its lightweight aluminum frame, crafted from high-grade materials to ensure durability without sacrificing performance. This frame design contributes to an agile riding experience, ideal for both commuting and recreational cycling. The geometry of the GP7128 is carefully engineered to provide a comfortable riding position, minimizing strain during long rides while maximizing control and responsiveness.

Equipped with a Shimano drivetrain, the GP7128 features a smooth-shifting gear system that allows cyclists to effortlessly navigate various inclines and terrains. The combination of a wide gear range offers optimal efficiency, ensuring riders can maintain speed and cadence regardless of the conditions. The bike's braking system is also noteworthy, featuring both front and rear disc brakes that provide reliable stopping power in all weather scenarios, enhancing safety on the road.

The Giant GP7128 boasts advanced tire technology, with puncture-resistant tires designed to withstand rough surfaces and sharp objects. This feature not only enhances the bike’s longevity but also gives riders peace of mind on longer rides. The wheels are built to be robust yet agile, allowing for quick acceleration and stable handling, making the bike a versatile option for city commuting or weekend adventures.

Another impressive aspect of the GP7128 is its ergonomic handlebars and saddle design. These components are specifically tailored to reduce fatigue, promoting a more enjoyable riding experience even on longer distances. Additionally, the bike is compatible with a range of accessories, including fenders and racks, making it an ideal choice for those looking to customize their ride for various purposes.

In summary, the Giant GP7128 stands out with its lightweight aluminum frame, reliable Shimano drivetrain, powerful disc brakes, and puncture-resistant tires, along with ergonomic design features. This bike represents a blend of performance, comfort, and practicality, appealing to both casual riders and serious cyclists seeking a reliable vehicle for their outdoor pursuits. Whether navigating city streets or exploring nature trails, the GP7128 is equipped to deliver an exceptional cycling experience.