4
HORSEPOWER RATINGS:
The rating 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 a 1.15 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
1450
Specifications
Model GP8135A
U.S. ................................... (Metric)
Flow ................................................................. up to 29.1 GPM* ............... (110 LPM)*
Discharge Pressure .........................................
up to 7250 PSI*
.................
(500 bar)*
Power Consumption ........................................
94 BHP*
............................ 70 kW*
Maximum Crankshaft Speed ......................................................................
580 RPM
Inlet Pressure ..................................................
Up to 145 PSI
.................. (10 bar)
Plunger Diameter ............................................. 1.38” ..................................
35 mm
Plunger Stroke ................................................. 2.83” .................................. 72 mm
Pinion Shaft Diameter ...................................... 1.77” ..................................
45 mm
Fitting Key ..................................................................................................
14 mm x 70 mm
Crankshaft Mounting .................................................................................. Either side
Pinion Shaft Rotation .................................................................................. Towards Gear End of pump
Temperature of Pumped Fluids ....................... Up to 86
o
F ....................... (30
o
C)
Inlet Ports ................................................................................................... (2) 2” NPT
Discharge Ports .......................................................................................... (2) 1” NPT
Weight ............................................................. 800 lbs. ............................. (363 kg)
Crankcase Oil Capacity ...................................
4.2 Gal.
............................ (16.0 liters)
Fluid End Material ....................................................................................... Stainless Steel
NPSHR ............................................................ 27.8 ft. - head ....................
8.5 mWs
Based on driver type, input speeds may vary.
* Do not exceed 94 BHP (70 kW).
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.
SPECIAL NOTE:
The theoretical gallons per revolution (gal/rev) is
0.050.
To find specific outputs at various RPM, use the
formula:
GPM = 0.050 x RPM
= HP
GP8135 HORSEPOWER
REQUIREMENTS
RPM GPM 1000 PSI
2500 PSI 5000 PSI 7250 PSI
300
15.1
10.4
26.0
52.1
75.5
375
18.8
13.0
32.4
64.8
94.0
500 25.1
17.3
43.3
86.6
N/A
580
29.1
20.1
50.2
N/A
N/A
GP8135 Gear Ratios
Gear Ratio
Input Speed
2.6:1
1500 RPM
3.1:1
1800 RPM
3.8:1
2200 RPM
4.5:1
2600 RPM
