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  • Mechanical Bladder Pump

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    The Geoprobe® Model MBP470 Mechanical Bladder Pump offers a better way to meet low flow sampling requirements because it saves money with less field effort!

    • Obtain high-quality, low-turbidity groundwater samples from wells or direct push installed groundwater samplers as small as 0.5 in. ID>
    • Conduct Low Flow, Minimal Drawdown sampling to meet the most stringent EPA requirements for Volatile Organic Compounds (VOCs). Read more...
    • Less expensive to use than pneumatic bladder pumps.
    • Used as a portable pump or dedicated to monitoring weimagells to minimize potential for cross contamination.
    • Requires no compressor, generator, or pneumatic controller.
    • Can be operated in simple, manual mode or with a manual actuator.
    • No difference in sample quality when operated at same flow rate as a conventional bladder pump.
    • All metal components of the pump are stainless steel to further assure sample integrity and regulatory acceptance.  The photo above right shows installing the inlet/check ball retained on the lower end of the mechanical bladder pump.

     

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    In the photo shown at left, a corrugated Teflon® bladder, housed inside the stainless steel body, is lowered into the well casing of a monitoring well.  Check balls above and below the bladder control flow direction as the inner tubing is moved up and down to expand/compress the bladder.

    imageA closeup of the corrugated Teflon® bladder used in the Mechanical Bladder Pump.

     

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    EPA Verification Program Evaluates MBP System

    The U.S. Environmental Protection Agency's Environmental Technology Verification Program (ETV) recently finalized their performance statements on the Mechanical Bladder Pump developed by Geoprobe Systems®, and has given the company and the MBP high marks. The document stated that the MBP collected representative samples and met low-flow sampling protocol recommended by the EPA and many state agencies. Read more about what is contained in their four-page report...

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