Giant LP122A operating instructions Pulley Information, Horsepower Information

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Specifications

Models LP122A/LP122A-4000/LP123

 

U.S

(Metric)

Volume (Continuous)

35.4 GPM

(134 l/m)

Volume (Intermittent)

40 GPM

(151.4 l/m)

Discharge Pressure (Continuous)

1300 PSI

(90 Bar)

Discharge Pressure (Intermittent)

2000 PSI

(138 Bar)

Inlet Pressure

Up to 90 PSI

(Up to 6.2 Bar)

Speed (Continuous)

Up to 800 RPM*

Speed (Intermittent)

Up to 885 RPM**

Plunger Diameter

1.65”

(42 mm)

Stroke

1.65”

(42 mm)

Crankcase Oil Capacity

116 fl.oz

(3.43 liters)

Temperature of Pumped Fluids

Up to 160oF

(Up to 71oC)

Inlet Ports

2 x 1-1/2" NPT

Discharge Ports

2 x 1" NPT

Crankshaft Mounting

Either Side

Shaft Rotation

Top of Pulley Towards Fluid End

Weight

116 lbs

(52.7 Kg)

Crankshaft Diameter

1.38”

(35 mm)

Valve Casing - LP122A

Aluminum Bronze

Valve Casing - LP123

Brass

Valve Casing - LP122A-4000

303 S.S.

Volumetric Efficiency @ 800 RPM

0.96

Mechanical Efficiency @ 800 RPM

0.85

*Pump speeds of 640 RPM and above require a minimum inlet pressure of 12 psig. **Pump speeds of 805 RPM and above require a minimum inlet pressure of 14 psig.

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% toler- ance on pumps output due to variations in pulleys, belts and motors among manufactur- ers.

1.Select GPM required, then select appropriatemotor 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

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

HP = (GPM X PSI) / 1440

LP122A/LP122A-4000/LP123 PULLEY SELECTION AND HORSEPOWER

REQUIREMENTS

GPM

PUMP

MOTOR

RPM

600 PSI

800 PSI

1000 PSI

1300 PSI

2000 PSI*

PULLEY

PULLEY

 

 

 

 

 

 

 

22.3

12.75"

3.95"

500

9.6

12.7

15.9

20.7

31.9

24.7

12.75"

4.35"

555

10.6

14.1

17.6

22.9

35.3

28.5

12.75"

4.95"

640

12.2

16.3

20.4

26.5

40.7

30.9

12.75"

5.35"

695

13.2

17.7

22.1

28.7

44.1

33.4

12.75"

5.75"

750

14.3

19.1

23.9

31.0

47.7

35.6

12.75"

6.15"

800

15.3

20.3

25.4

33.1

50.9

39.4

12.75"

6.50"

885*

16.9

22.5

28.1

36.6

56.3

*Intermittent duty only! - Consult factory!

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Contents LP122A/LP122A-4000/LP123/LP255 Important Operating Conditions Installation InstructionsPulley Information Horsepower InformationExploded View LP122A/LP122A-4000/LP123/LP255 Partno Description LP122A/LP122A-4000/LP123/LP255 Parts ListSpecifications Model LP255 Pump System Malfunction LP122A/LP122A-4000/LP123/LP255 Repair Instructions To Reassemble Proceed AS Follows LP122A/LP122A-4000/LP123/LP255 Torque Specifications LP122A/LP123/LP255 Dimensions mm LP122A-4000 Dimensions mm Giant Industries Limited Warranty

LP122A specifications

The Giant LP122A is a versatile and powerful bicycle renowned for its robust design and advanced technology, making it a popular choice among cycling enthusiasts and casual riders alike. This bike combines quality materials, innovative engineering, and user-friendly features, ensuring an enjoyable riding experience for all.

One of the standout features of the Giant LP122A is its lightweight aluminum frame. With a focus on durability and strength, the aluminum construction offers excellent resistance to corrosion while maintaining a low overall weight. This ensures that riders can navigate various terrains with ease, making it ideal for both urban commuting and off-road adventures. The geometry of the frame is designed to provide a comfortable riding position, promoting stability and control during long rides.

The LP122A is equipped with a high-performance drivetrain, featuring a smooth-shifting system that allows for quick and precise gear changes. This feature is especially beneficial when tackling steep hills or navigating tricky paths, as riders can easily adjust their speed and cadence. The bike typically incorporates quality components from reputable brands, ensuring reliability and longevity.

Another key characteristic of the Giant LP122A is its enhanced suspension system. The front suspension fork absorbs shocks and bumps, providing a smoother ride on rough terrain. This is particularly important for mountain biking, where uneven surfaces can pose challenges. Additionally, the suspension settings are often adjustable, allowing riders to customize their experience based on personal preferences and riding conditions.

Braking performance is crucial for safety, and the LP122A excels in this aspect with responsive disc brakes. These brakes offer superior stopping power, ensuring that riders can confidently handle various speeds and descents. Disc brakes provide consistent performance in wet or muddy conditions, making this bike suitable for all-weather riding.

In terms of aesthetics, the Giant LP122A boasts a modern design with vibrant color options that appeal to a broad range of riders. With its sleek lines and attention to detail, the bike not only performs well but also looks stylish on the road or trail.

Overall, the Giant LP122A stands out as an exceptional bicycle that combines advanced technology, robust features, and user-friendly characteristics. Whether for commuting, recreational riding, or tackling tough trails, the LP122A offers a reliable and enjoyable option for cyclists seeking performance and comfort.