Parker PGP523H Pump – Group 2 Aluminium Gear Pump


The Parker PGP523H pump is a silent gear pump from the PGP500H series which utilises a specially developed rotor profile.

This rotor profile has a single point of contact and completes an overlap which eliminates any trapped volume of fluid. The result is a silent, continuous transmission of fluid when compared to the pulsations of a traditional gear pump.

PGP500H series pumps reduce noise, pulsations and vibrations from the hydraulic system and offer high pressure performance. They are perfect for industrial and mobile applications sensitive to noise such as electric and hybrid vehicles.

Single unit Parker PGP523H series pumps are available in 4 displacements from 50.50cc/rev to 90.90cc/rev: PGP523HA-0505 | PGP523HA-0635 | PGP523HA-0750 | PGP523HA-0909

Maximum operating pressures are up to 240 bar and speeds up to 3,000 rpm – see the technical details tab.

Features and benefits of Parker PGP523H pumps include:

  • Three-piece construction for distribution flexibility
  • Clockwise, counter-clockwise rotation
  • SAE shafts, flanges and porting available
  • Pressure-balanced thrust blocks for high efficiency
  • Constant mesh helicoidal gear design for quiet operation
  • Journal bushings for long life
  • Aluminium pumping sections for light weight

Contact us for further technical details and configuration options.

Download the Parker PGP523 Technical Catalogue >>>

PGP 523H Code 0505063507500909
Displacement (cm³/rev)50.5063.507590.9
Litres/minute @ 1725 rpm83.70105.30124.30150.70
Litres/minute @ max rpm 145.60152.50158.50192.20
Cont. Pressure (psi / bar)3481/2402901/2002466/1702031/140
Intermittent pressure (psi / bar)3626/2503046/2102611/1802176/150
Minimum Speed (rpm)350300300300
Maximum Speed (rpm)3000250022002000
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