Specifications and Components
This is a flooded-lobe, rotary screw compressor (filled with VMAC
certified and approved synthetic oil) driven by a hydraulic motor.
Compression occurs when inlet air (at normal atmospheric pressure)
enters a chamber where it is trapped between the rotating rotor
lobes. A lubricated pitch line provides sealing. As the lobes mesh,
they reduce the volume of the air, compressing it to the desired
pressure.
The system has a two-stage air/oil separator. The first separation
stage consists of baffles, which perform mechanical separation. The
second stage uses a coalescing element, which delivers dry air to
the outlet.
Pressure regulation is achieved with a mechanical inlet control valve
and an adjustable pressure regulator.
The compressor is protected by a paper-type replaceable air filter
and a spin-on type oil filter. Oil is removed from the delivered service
air by a coalescing separator element.
Safety features include:
2,800 psi hydraulic pressure relief valve for Predatair40/60
3,300 psi hydraulic pressure relief valve for Predatair60 HHP
200 PSI relief valve in oil/air tank
blow-down valve to discharge system pressure on shutdown
temperature safety sensors in the compressor, hydraulic oil
discharge from the cooler and hydraulic oil return at the
manifold
Do not disable or bypass the over-temperature
shutdown circuit. Failure of the shutdown system could
result in equipment damage, injury or death.
A liquid-to-air cooler maintains operating temperatures in an optimal
performance range which increases system durability and reduces
the temperature of the compressed air. Ventilation is critical for
proper operation. See the Installation Manual PREDATAIR Hydraulic
Compressor for details.
The system pressure is factory-set at 150 psi. Pressure can be
adjusted between 100 and 150 psi by using the display box. To
reduce the operating pressure, use a Filter Regulator Lubricator
(FRL).
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