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Whether you’re local or farther away you can ship your hydraulic unit in for repair to our Hydraulic Repair facility. Contact us today at 800-728-5168 and check out the Shipping Info link below for more information on how to mail in your Hydraulic unit for repair at our Oklahoma City facility. If you do not see your model code on our site, email or call 1-800-728-5168 for a price quote, we have 10,000 hydraulic units that are not listed on site yet.

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* all New, Reman and Repaired Units Come with a 2 Year Warranty.
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    Precision Fluid Power sells re-manufactured and new Denison hydraulics, including Denison pumps, Denison hydraulics valves, and Denison hydraulics motors. Search our online catalog of Denison Hydraulics pumps and motors, or contact us and let us know how we can help you.

    Need your Denison hydraulics repaired? We do that too. Call us or send in your motor for hydraulic motor repair services.

    It is what we do – keeping Denison Hydraulics customers in operation around the clock, through repairs as well as new and remanufactured Denison Hydraulics components.

    History of Denison Hydraulics

    What is the history of Denison Hydraulics?

    Denison Hydraulics is a U.S.-based company manufacturing industrial hydraulic fluid power systems like hydraulic pumps, motors, and valves. Denison was originally founded in 1900 as the Cook Motor Company, a manufacturer of industrial gasoline engines. Bill Denison took over the company in the aftermath of World War I. Then, in 1925, Bill Denison invented the first hydraulic machine, the hydraulic car pusher. He began operating under the name of Denison Engineering Company.

    After years of experimenting and research, it developed into the Denison Hydraulics company it is today. The company name was changed to Denison Hydraulics Inc. in 1992 and was later purchased by Parker Hannifin in 2003, releasing products under the Denison-Parker name.

    Denison Hydraulics Valves

    Denison Hydraulics valves are manufactured in four different types, with these types including:

    1. Directional control valves – alter the path of pressurized fluid through the hydraulic systems
    2. Pressure control valves – regulate the pressure of the hydraulic fluid
    3. Flow control valves – match the hydraulic fluid’s flow with the requirements of the system
    4. Hydraulic check valves – allow fluid to pass in only one direction

    Denison hydraulics components can be used in a wide variety of commercial settings, such as injection molding, metal and material forming, mobile equipment, or marine systems.

    Denison Hydraulics is one of the only hydraulic parts manufacturers of flange-mounted pressure control valves. Attach hydraulic valves directly to another hydraulic component and connect traditional valve designs to associated hydraulic components and lines. This tends to be more expensive and less effective than flange mounting.

    Denison Hydraulic valves we commonly stock in new, re-manufactured, or aftermarket are:

    • R4, R5
    • 2F1C

    Denison Hydraulics Piston Pumps and Motors

    Denison Hydraulics manufactures piston pumps in a variety of specialized sizes, pressures, and displacements. Their large-sized hydraulic piston pumps, under their Gold Cup Series, are a superior choice among hydraulic piston pumps. Because of their “barrel-bearing” design, Denison pumps can run in stable conditions at high speeds and pressures. This results in a longer life cycle in heavy-duty situations, such as heavy mining equipment and aircraft carrier steering systems.

    They designed the Gold Cup Series piston pumps for both open and closed circuits. You can configure featured modular controls to meet most system requirements and locate versatile controls on either side for maximum use and design. The Gold Cup Denison pump has several features allowing it to run in multiple open circuit applications and the most difficult control requirements.

    As a hydraulic parts manufacturer, Denison makes the Calzoni brand fixed displacement, dual displacement, and variable displacement radial piston motors. They are available in many designs, models, and displacements.

    Units we commonly stock in new, re-manufactured, or aftermarket are:

    Denison Hydraulics Piston Pumps

    • PV6, PV10, PV15, PV20, PV29, PF-04/05/06/07/08/09, PV-05/06/07/09/09, PXX 1223

    Denison Hydraulics Motors

    • M1C, M1D, M1E, M4C, M4D, M4E, MF-04/05/06/07/08/09, MV-05/06/07/08/09
    • T2. T2SC, T2SCT, T2SD, T5C, T5, T6C, T6CCM, TG, TMB, T6CC, T6CC, T67
    • P12, P140, P14P, P14S, P14V, P16, P1F07, P1V07, P200, P24, P24P, P24S, P260, P2F07, P30S, P3F07, P3V07, P46P, P46V
    • M4E, M11H, M11V, M14G, M14H, M14V, M1F07, M2F07, M46, M46H, M46V

    Denison Hydraulic Vane Pumps

    Denison Hydraulic vane pumps are one of the strongest products in the industry. Their unique double-lip design sets them apart in quality. This allows the Denison pump vane to be in contact with the cam ring at two points instead of just one. This also makes them less susceptible to contamination. Denison Hydraulics offers a range of hydraulic vane pumps, varying in size, pressure and displacement.

    Denison Hydraulic Component Guides

    Browse our library of Denison hydraulics component guides for more information.

    Denison Hydraulic Pump | Denison Motor
    Denison Hydraulic Pump | Denison Motor
    Denison Hydraulic Pump | Denison Motor
    Denison Hydraulic Pump | Denison Motor

    Manufacturers List

    Request a repair quote, or order new & remanufactured hydraulic components