Giant LP122A Specifications Model LP255, Metric, Pulley Information, Horsepower Information

Models: LP122A

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Specifications

Specifications

Model LP255

 

U.S

(Metric)

Volume

26.0 GPM

(98 l/min)

Discharge Pressure

2175 PSI

150 Bar)

Inlet Pressure

Up to 90 PSI

Up to 6.2 Bar)

Speed

Up to 1000 RPM

Plunger Diameter

1.26”

(32 mm)

Stroke

1.65”

(42 mm)

Crankcase Oil Capacity

116 fl.oz

(3.43 liters)

Temperature of Pumped Fluids

Up to 160oF

(70 oC)

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

Brass

Volumetric Efficiency @ 800 RPM

0.96

Mechanical Efficiency @ 800 RPM

0.85

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

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

LP255 PULLEY SELECTION AND HORSEPOWER REQUIREMENTS

PUMP

MOTOR

RPM

GPM

1000 PSI

1500 PSI

2000 PSI

2175 PSI

PULLEY

PULLEY

 

 

 

 

 

 

12.75"

3.95"

500

13

9.0

13.5

18.1

19.6

12.75"

4.35"

640

16.6

11.5

17.3

23.1

25.1

12.75"

4.95"

750

19.5

13.5

20.3

27.1

29.5

12.75"

5.35"

805

20.9

14.5

21.8

29.0

31.6

12.75"

5.75"

865

22.5

15.6

23.4

31.3

34.0

12.75"

6.15"

920

23.9

16.6

24.9

33.2

36.1

12.75"

6.50"

1000

26

18.1

27.1

36.1

39.3

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Giant LP122A operating instructions Specifications Model LP255, Metric, Pulley Information, Horsepower Information