伊頓高壓齒輪泵材質壽命，伊頓高壓齒輪泵

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from high quality production parts and

are the most economical pumps available

in this series. Dimensions and order

numbers for Standard Catalog Assemblies

are given on pages 6 through 9

Pressure bar [PSI] [3600] [3600] [3600] [3600] [3600] [3600] [3250] [3000] [2750]

Max. Intermittent?? 276 276 276 276 276 276 252 234 217

** 55.2 [3.37] displacement maximum intermittent pressure is 217 bar [3150 PSI]

and Rated Speed [18.2] [18.1] [20.5] [23.6] [27.0] [27.2] [29.6] [33.7] [32.8]

207 bar [3000 PSI] 27.5 27.5 31.1 35.3 39.5 39.6 42.4 49.4 48.2

and Rated Speed [36.9] [36.9] [41.7] [47.3] [53.0] [53.1] [56.8] [66.2] [64.7]

The performance data in the table above and the 

following graphs was collected using a mineral base oil with

a viscosity of 133 SUS at 49° C [120° F]. 

The following performance graphs are representative of the series.

Continuous - pump may be run continuously at these ratings.

?? Intermittent - Intermittent operation, 10% of every minute.

?? Intermittent - Intermittent operation, 10% of every minute.

For side load limits consult your Eaton representative.

Rotation CCW or CW

Mounting Flange SAE 2 Bolt B

Maximum Continuous?

Rated Speed (RPM) 3500 3000 3000 2750 2750 2500 2500 2500 2250

207 bar [3000 PSI] 68.9 68.5 77.4 89.4 102.0 103.0 112.0 127.5 124.1

Besides the Standard Catalog Assemblies,

the L2 Series has several optional

features. Flow divider and tandem

backplates are available. Multiple gear

pumps can also be built. If a variation

from the Standard Catalog Assemblies is

required, use the model codes on pages

Pressure bar [PSI] [4000] [4000] [4000] [4000] [4000] [4000] [3650] [3400] [3150]

** 46.7 [2.85] displacement maximum intermittent pressure is 252 bar [3650 PSI]

** 51.1 [3.12] displacement maximum intermittent pressure is 234 bar [3400 PSI]

Continuous - pump may be run continuously at these ratings.

The performance data show in the graphs are representative of this series. Tests were performed

per SAE specifications using mineral base oil with a viscosity of 133 SUS at 49° C [120° F]

Model 25500 25501 25502 25503 25504 25505 25506 25507 25508

Displacement 21.3 25.4 29.2 33.6 38.2 42.8 46.7 51.1 55.2cm3/r [in3

/r] [1.30] [1.55] [1.78] [2.05] [2.33] [2.61] [2.85] [3.12] [3.37]

Max. Continuous? 248 248 248 248 248 248 224 207 190

Standard Catalog Assemblies

Standard Catalog Assemblies are built

* 46.7 [2.85] displacement maximum continuous pressure is 224 bar [3250 PSI]

* 51.1 [3.12] displacement maximum continuous pressure is 207 bar [3000 PSI]

* 55.2 [3.37] displacement maximum continuous pressure is 190 bar [2750 PSI]

 Pressure 248 bar [3600 PSI]*

Maximum Intermittent?? Pressure 276 bar [4000 PSI]**

Minimum Speed at Continuous Pressure 750 RPM

Maximum Continuous Inlet Temperature 107°C [225°F]

Minimum Operating Temperature -29°C [-20°F]

Maximum Inlet Vacuum at 82°C [180°F] and Rated Speed 6.0 In. Hg

伊頓高壓齒輪泵材質壽命，伊頓高壓齒輪泵