Hydraulic Pumps

Gear, Piston and Vane pumps

Let us custom build your pump or motor to your specifications.

Piston pumps are available in several displacement sizes and have a range of options to suit your particular application. Controls for pressure compensation, load sense, horsepower limiting and load sensing are also available. Gresen pumps are all aluminum construction for optimum power to weight ratio. We are an authorized stocking distributor and can further modify and assemble any configuration to meet your needs.
P1/PD Series
Piston Pumps | Parker
Single, Tandem, & Multiple Variable Displacement Piston Pumps Designed for Open-Circuit Mobile Applications. Compact, quiet, and efficient.
  • Speeds up to 2000 rpm (P1) & 1800 rpm (PD).
  • Maximum Operating Pressure up to 4000 psi (280 bar)
  • Output Flows up to 73 gpm
  • Ripple Chamber Technology minimizes pressure pulsations and decreases noise
P2/P3 Series
Piston Pumps | Parker
Single and Multiple; Variable, Swashplate Piston Pumps designed for open-circuit mobile hydraulic systems
  • Speeds up to 2200 rpm (P2) & 2800 rpm (P3).
  • Maximum Operating Pressure up to 4600 psi (P2) & 5000 psi (P3)
  • Output Flows up to 79 gpm
  • Perfect choice when it comes to cost-saving installation as well as high itemsivity and power density
PVP Series
PVP Series
Piston Pumps | Parker
Single, Tandem, & Multiple Variable Volume Piston Pumps for Medium Pressure Applications
  • Speeds up to 2400 rpm.
  • Maximum Operating Pressure 3600 (250 bar)
  • Output Flows up to 30.4 gpm
  • Features Thru-shaft capability & High Strength Construction
PAVC Series
Piston Pumps | Parker
Single, Tandem, & Multiple Medium Pressured/Super Charged Pumps that offer reliable, high-speed operation
  • Speeds up to 2600 rpm
  • Maximum Operating Pressure 3000 psi (210 bar)
  • Output Flows up to 69 gpm
  • High strength cast iron housing, built in supercharger, Sealed shaft bearing, Cartridge type controls
F1 Series
F1 Series
Bent Axis Pumps | Parker
45 degree bent axis pump. Effiecient and straight forward with unsurpassed reliability
  • Speeds up to 2700 rpm
  • Max operating pressure 5800 psi (400 bar)
  • Output Flows up to 48 gpm
  • High self priming speeds for increased itemsivity. These pumps operate at optimum efficiency in the most demanding environments
F2 Series
F2 Series
Bent Axis Pumps | Parker
45 degree bent axis Twin-Flow pump. The first truck pump on the market to feature two entirely independent flows.
  • speeds up to 2100 rpm
  • Max operating pressure 5800 psi (400 bar)
  • Output flows up to 60 gpm
  • Features a Smart System Solution. Can provide three different flows at the same engine speed.
F11/F12 Series
Bent Axis Pumps | Parker
Fixed Displacement bent axis pump/motor used in both open and closed loop circuits.
  • speeds up to 4600 rpm (F11) & 3150 rpm (F12)
  • max operating pressure 6090 psi (420 bar) (F11) & 6960 psi (480 bar) (F12)
  • output flows up to 17 gpm (F11) & 95 gpm (F12)
  • High speeds, low noise. A straight-forward design with very few moving parts making them very reliable pumps/motors.
T6/T7 Series
T6/T7 Series
Vane Pumps | Parker
Single, Double, & Triple Vane Pumps designed for high/low circuits.
  • Wide speed range from 600 to 3600 rpm
  • Continuous operating pressure from 1080 psi (75 bar) to 4640 psi (320 bar)
  • Fast Pressure change and precise flow repeatability
  • The intelligent way to optimize your circuit design. Increases itemsivity and reduces operating costs.
C101/C102 Series G101/G102 Series Dump
C101/C102 Series G101/G102 Series
Gear Pumps | Parker
Direct and Remote Mounts available. All can be connected in two or three line circuits to control single acting cylinders.
  • Speeds up to 2400 rpm.
  • Maximum Operating Pressure up to 2500 psi (172 bar)
  • (C101/C102) 39 & 48 gpm @ 1800 rpm
  • (G101/G102) 9.5, 21, & 29 gpm @ 1800 rpm
  • Air remote operators available
PGP020/031/051/051/076 Roller Bearing Series
PGP020 Gear Pumps
Gear Pumps | Parker
Single and Multiple pump/motor, Flow Divider, Piggyback and Winch Motor configurations are available.
  • Speeds up to 2400 rpm.
  • Maximum Operating Pressure up to to 3000 psi (206 bar).
  • Output flows up to to 114 gpm 431 lpm).
  • Average PGM051 torque up to 2250 in-lbs @ 2500 psi (172 bar)
PGP315/330/350/365 Bushing Series
pgp-315-330-350-365
Gear Pumps | Parker
Single, Multiple, Piggyback, and Thru-Drive assemblies. Heavy-Duty Application. Low Friction Design. Three-piece cast iron construction.
  • Speeds up to 3000 rpm
  • Maximum Operating Pressure up to 3500 psi (241 bar)
  • Displacements from .465 to 9.00cir
  • Volumetric Efficiencies to 98%
P505/P511 Aluminum Series
P505/P511 Series
Gear Pumps | Parker
Single or Multiple Configurations. Superior Performance, high efficiency and low noise operation at high operating pressures.
  • Speeds up to 4000 rpm.
  • (P505) Maximum Operating Pressure up to 3988 psi (275 bar) / (P511)
  • Maximum Operating Pressure to 3625 psi (250 bar)
  • Output flows up to 37 gpm Volumetric Efficiencies to 98%
P16/P20/P25 Aluminum Series
P16
Gear Pumps | Parker
Standard, Tandem, Priority Valve, Clutch Pumps, and Combination w/ priority valve.
  • Speeds up to 3600 rpm
  • Maximum Operating Pressure to 3000 psi (207 bar)
  • Output Flows to 38 gpm per section
  • Cast iron pumping sections for durability
PGG Motors Aluminum Series
HY09-PGG-MGG-US
Gear Pumps | Parker
Fixed Clearance Design. Bi-directional. Roller Bearing Design. Lightweight Aluminum Construction.
  • Speeds up to 5000 rpm
  • Maximum Operating Pressure up to 2000 psi (138 bar)
  • Output flows up to 3.03 gpm @ 1000 rpm
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