QED Environmental Systems, Inc

- Low Flow Groundwater Sampling Pumps Systems

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Well Wizard pumps for MicroPurge low-flow groundwater sampling systems come in an unsurpassed range of sizes, materials, and capabilities, including models for deep sampling wells, narrow or obstructed casings, and small-volume pumps for low-yield monitoring wells. Together with MicroPurge controllers, flow cells, and accessories, they create the most reliable, cost-effective low-flow groundwater sampling system available.

Field proven pump designs and exclusive, high performance PTFE bladder formulation offer the reliability critical to long-term monitoring. QED was first in the industry with a standard 10-year sampling pump warranty – 'no-loopholes' protection that covers the entire pump, including the bladder.

Unmatched regulatory and user acceptance
Bladder pumps, EPA-accepted for low-flow sampling, have been shown to deliver superior sample accuracy and precision in dozens of independent studies. Over 75,000 Well Wizard bladder pumps are in use – more than all other brands and types of dedicated ground water samplers combined.

Well Wizard pumps are built for reliability, with refinements perfected for more than 20 years of continuous engineering and improvement – extra value you won't find in any other bladder pump. One example: stainless steel in Well Wizard pumps is electropolished to passivate the surface, delivering years more corrosion resistance than competitors' models.

Well Wizard Groundwater Sampling Advantages

  • EPA- accepted low-flow sampling accuracy.
  • Over 75,000 Well Wizard bladder pumps are in use – more than all other brands and types of dedicated groundwater samplers combined.
  • Models for every well – low-yield, short water column, depths to 1,000' (304.8 m), casing I.D. down to 1.25' (31.75 mm).
  • Proven reliability since 1982, with the industry's first standard 10-year warranty.
  • Exclusive PTFE bladder formulation rated for years more flex life than other bladder materials.

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Pneumatic bladder pumps operate with a unique, gentle action ideal for low-flow sampling. Timed on/off cycles of compressed air alternately squeeze the flexible bladder to displace water out of the pump, and release it to allow the pump to refill by submergence, without creating any disturbance that could affect sample chemistry. Bladder pumps run easily at low rates for extended times, without the problems of other devices.

  • No overheating of high-speed electric pump motors, which can alter samples and ruin the pumps.
  • No churning action, like that of bailers or inertial-lift samplers that increase turbidity.
  • No suction to cause degassing of dissolved volatile contaminants.

The bladder prevents contact between the pump drive air and the sample, and the downwell equipment is permanently dedicated to each well, so both samples and the well are protected from disturbance or the danger of cross-well contamination.

The easiest system to order and use

Well Wizard Bladder Pumps are part of the complete low-flow MicroPurge sampling system engineered for easy installation and use. QED application specialists will help specify the most effective, economical pumps and accessories for your site. Each pump is cleaned and laboratory-certified to be free of volatile organic compounds, acid extractable and base neutral contaminants. Your system is preassembled, with tubing cut to length, ready to install. If desired, installation by OSHA-certified field technicians is available.

QED customer support — with trained local representatives, 24-hour toll-free hotline, and next-day loaners or service turnaround when needed — backs you with unmatched expertise and service. More MicroPurge dedicated sampling systems and pumps have been chosen since 1982 than all other manufacturers’ equipment combined.

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