Sampling
PNEUMATIC CONTROLLER
GeoPump Cycle Controllers manage the compressed air used to power pneumatic pumps. They are designed with large air paths so as not to restrict the air flow as it moves from the compressed air source to the pump.
ELECTRIC CONTROLLER
GeoPump Cycle Controllers manage the compressed air used to power pneumatic pumps. They are designed with large air paths so as not to restrict the air flow as it moves from the compressed air source to the pump.
5600 SERIES BLADDER PUMPS
Available in a wide range of sizes and capacities to meet virtually any pumping situation, GeoPump 5600 Series Bladder Pumps meet all EPA requirements for representative ground water monitoring in both portable and dedicated situations.
57000 SERIES BLADDER PUMPS
GeoPump dedicated bladder pumps meet rigid U.S. EPA requirements for ground water monitoring, while offering the highest flow rates of any bladder pump of equivalent size. This enhanced performance results from an offset center tube and check valves which produce a straight water path. The larger bore and unrestricted flow path combine to produce higher flow rates for purging and low, consistent flows for sampling.
LOW-FLOW BLADDER PUMP
GeoPump Micro-Flo bladder pumps have been specifically
designed to meet the most stringent U.S. EPA sampling
guidelines for low-flow methods. Utilizing a highly durable,
yet flexible membrane, the pump is a true bladder squeeze design that prevents the drive air from contacting
the liquid sample, assuring no loss of gas sensitive
parameters.When used in a dedicated sampling system and operated by a GeoPump cycle controller and oil-less air compressor, the pump can be adjusted to meet U.S. EPA performance standards over a wide range of lift
conditions.
DEDICATED WELLHEAD COVERS
Wellhead covers provide a necessary and convenient means of terminating dedicated tubing to the wellhead, supporting the pump, and housing the air water fittings.
Three Standard Closure Styles Are Available:
1. Bell Cap, non-lockable.
2. Flat Cap, non-lockable.
3. Indented, non-lockable.
COLD WEATHER BLOW-OUTS
GeoPump Cold Weather Blow-Outs prevent the water discharge tubing of dedicated bladder pumps from freezing. Cold Weather Blow-Out assemblies include all tubing and necessary fittings.
Cold Weather Blow-Outs for Dedicated Bladder Pumps
With cold weather comes the potential for freezing of the discharge tubes of dedicated bladder pumps. The portion of the tube subject to freezing is the length between the frost zone and top of the well riser. GeoPump's Cold Weather Blow-Out offers a solution. The Blow-Out consists of a compression coupler that splices into the discharge tube ten feet below the top of the casing. A small right angle barbed fitting is installed in the side of the coupler. A small diameter tube is attached to the barbed fitting and extends to the well closure where it terminates at a one-way valve.During pump operation, the one-way valve remains closed, allowing water to discharge normally. At the conclusion of sample collection, the compressed air source is connected to the one-way valve, delivering a short burst of air, which blows the standing water from the water discharge tube. Cold Weather Blow-Outs are recommended in areas where temperatures drop below 25° F. They are not necessary for auxiliary purge pumps or Two-Stage Pumps as these can be blown out with the normal drive air lines.
