EODD Pulsation Dampeners

    Cognito by SANDPIPER dampener

    Enhance Your Pump System Performance

    Cognito pulsation dampeners are designed to deliver optimal performance and protection for your pump systems. Compatible with both AODD and EODD pump technologies, they play a crucial role in reducing pulsations and vibrations caused by positive displacement pumps, ensuring smooth flow and consistent pressure.


    Contact an Expert → Download the Brochure
    Dampener Specs

    View the Dampener Service Manual for additional product information and specs.

    * Note: Dampeners are automatic and require a continuous compassed air source.

    Material of Construction
    A / SS / PP

    Dampener Size
    1", 2", & 3"

    Max. Pressure
    8 bar (116 psi)

    Diaphragm Material
    Santoprene / Santoprene PTFE Overlay

    Air Inlet Size
    1/8" NPT


    Cognito EODD pump with dampenerHow Pulsation Dampeners Work

    A pulsation dampener uses a flexible diaphragm to separate a liquid chamber from a compressed air chamber. A rod connected to the center of the diaphragm activates the air inlet and exhaust, which automatically adjusts the air chamber pressure. This maintains the diaphragm in the mid-range of the stroke to eliminate flow pulsation and pressure spikes.

    performance: dampening 90+% for all the sizes - chart showing discharge rate with and without dampener

    Markets & Materials

    Dampeners are suitable for EODD pump models and are available in aluminum and stainless-steel wetted housings, ensuring compatibility and durability for various applications. Pulsation dampeners are ideal for a variety of industrial processes involving reciprocating pumps, including:

    • Ceramics

    • Paints, Coating, Dyes & Pigments

    • Pulp, Paper & Packaging

    • Metals & Mining

    • Chemical & Specialty Chemical

    • Lithium Battery

    • Oil & Gas

    • Pharmaceutical


    Safeguard Your EODD Pumps

    Dampeners offer solutions across industries due to their effectiveness in addressing pulsation issues. Let's discuss your needs.

    Contact an Expert →
    Smooth Operation

    Features & Benefits

    Our dampeners offer several key features and benefits that enhance the overall performance of your pump systems:

    • Smooth, Pulsation-Free Flow

    • Hassle-Free Automatic Controlling

    • Stabilized Pressure Conditions

    • Vibration-Free Pipes

    • Compatible With Variable Pressures

    • Improved Pump Life


    Get Support Now

    Your go-to source for in-depth information, technical documentation, and expert insights on our EODD pumps and accessories.

    BROWSE RESOURCES →

    Receive Periodic Email Updates

    Contact Us

    800 North Main Street
    Mansfield, Ohio 44902 USA

    (419) 524-8388

    Follow Us

    © 2026 SANDPIPER Pump | Portal Login | IDEX | Privacy Statement | Terms of Access | Patents | Website by SyncShow

    Change Consent Preferences