Parker Hydraulic Group
NSHD20 Series Flow-Sensing and Pressure-Sensing Unloading Gear Pumps

Key Features

  • Flows to 98 GPM per section
  • Tandem & triple section units available
  • Pressures to 2500 PSI
  • Speeds to 2500 RPM
  • Pressure & flow sensing valves available
  • Dry valve option
  • Piggy back option available
  • Also available as motor
  • Cast iron versions available
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Tandem Pump with Flow-Sensing and Pressure-Sensing Unloading Valve

This system consists of a tandem pump and an unloading valve. The unloading valve is actuated by either a flow signal (pump speed) or a pressure signal. thus combining the features of the NST and NSH systems into a single system.

Description .............................. Flow-Sensing and Pressure-Sensing
Unloading Gear Pumps
Combined Flow Range ..........To 98 GPM Per Section (370.9 LTR)
Displacements .... To 9.10 C.I.R. Each Section (149.12 CC’s/REV.)
Maximum Pressure to ...................................... 2500 PSI (172 BAR)
Maximum Speed to ............................................................ 2500 RPM
Rotation ...................................................................................... A or C
Bearings .................................................................................... Journal
Construction ....................................................................... Aluminum