Specifications
Model P455B
U.S. ................................. (Metric)
Volume .................................................... Up to 5.5 GPM ................ (21.0 LPM)
Discharge Pressure Continuous ............ Up to 4,350 PSI .............. (300 bar)
Discharge Pressure Intermittant* ........... Up to 5,100 PSI* ............. (352 bar*)
Inlet Pressure ......................................... -4.35 to 145 PSI .............. (-.3 to 10 bar)
Stroke ..................................................... 0.787” .............................. (20mm)
RPM ................................................................................................ Up to 1450 RPM
Plunger Diameter .................................... 0.708” .............................. (18mm)
Temperature of Pumped Fluids .............. Up to 160
o
F .................... (71
o
C)
Inlet Ports ........................................................................................ (2) 3/4" BSP
Discharge Ports .............................................................................. (2) 1/2" BSP
Shaft Rotation ......................................... Top of pulley towards manifold
Crankshaft Diameter .............................. 1.102” .............................. (28mm)
Key Width ............................................... .315” ................................ (8mm)
Shaft Mounting ................................................................................. Either side
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Weight .................................................... 37 lbs. 6oz ...................... (17.0 kg)
CrankcaseCapacity ................................ 30 fl.oz. ........................... (0.89 liters)
Volumetric Efficiency @ 1450 ......................................................... (0.95)
Mechanical Efficiency @ 1450 ........................................................ (0.83)
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:
In order to drive the pump from the side opposite the present
shaft extension, simply remove the valve casing from the
crankcase and rotate the pumps 180 degrees to the desired
position. Be certain to rotate the seal case (item #20) as well,
so that the weep holes are down at the six o'clock position.
Exchange the oil fill and the oil drain plugs, also. Refer to the
repair instructions as necessary for the proper assembly
sequence.
HORSEPOWER RATINGS:
The rating shown are the power
requirements for the pump. Gas
engine power outputs must be ap-
proximately 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 horse-
power requirements, use the following
formula:
HP = (GPM X PSI) / 1450
SPECIAL NOTE:
The theoretical gallons per revolution
(gal/rev) is 0.00379.To find specific
outputs at various RPM, use the formula:
GPM = 0.00379 x RPM
RPM
GPM
2000 PSI
3000 PSI
4350 PSI 5100 PSI*
920
3.5
4.8
7.2
10.5
12.3*
1050
4.0
5.5
8.3
12.0
14.1*
1185
4.5
6.2
9.3
13.5
15.8*
1315
5.0
6.9
10.3
15.0
17.6*
1450
5.5
7.6
11.4
16.5
19.3*
P455B HORSEPOWER
REQUIREMENTS
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