Performance Data - Haskel 10 P Series Technische- Und Leistungsdaten

10 HP Pump Series, 14" Series • MLP-14/46F
Priming
The pump will automatically prime itself if cycled slowly with the outlet port open to atmosphere or back to
tank. On initial start, or if suction line has been drained the pump should be cycled under no load to
remove all air from the suction line.
The pump model number indicates the normal ratio between the area of the piston and either liquid
plunger. See "Principle of Operation" in the LP-GL catalog.
The liquid outlet pressure at stall can be controlled quite accurately by regulating the air drive pressure.
The pump will cycle rapidly initially as it approaches output pressure somewhat above the ratio times the
air drive pressure, it will gradually slow down and finally "stall". However, if a charge pressure is also
being supplied to the liquid inlet, the inlet charge pressure will be directly additive to the outlet stall
pressure.
Performance
Pump Ratio Selection
The two sets of curves below show the actual performance of the 14"-125 ratio pump and the 14"-315
ratio pump.
Pump performance figures are based on tests using light hydraulic oil for all models.
NOTE: Performance may be reduced with heavier oils or liquids, or any that are subject to aeration or
high volatility. Performance is based on static air drive pressures at the pump air drive inlet. Hydraulic
supply and outlet piping should be large enough to avoid cavitation and to transmit flow without any
excess pressure drop. Curves are shown for the maximum rated air drive pressure.
In the case of the -315 ratio pump an air drive pressure of 125 psi could exceed the maximum 36,000 psi
safe working pressure. A Haskel air pilot switch and relief valve are recommended in the pump outlet line
to prevent overpressure.
Drive air may be throttled, if necessary, to reduce pump speed and hence air drive consumption and
hydraulic flow.
For very low air flow, it may be necessary to incorporate the 'low air pressure' modification to prevent
erratic operation. (See LP-GL catalog - Standard Modifications for 1 hp-10 hp series).

Performance Data

Shaded area of chart is cycle rate exceeding 80 cpm and should be used for intermittent duty only to
avoid high vibration levels and possibly objectionable noise. Nominal Max Cycle Rate: 30CPM.
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