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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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