Pneumatic Controller
GeoPump Cycle Controller manages the compressed air used to power a pneumatic pump. 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.
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Fine tuning, single rotation timer adjustment provides optimum pump flow rate.
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Sensitive air flow control permits high purging rates and low (less than 100ml/min.) sample rates.
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200 PSI pressure capability allows lifts up to 450 feet (135 m).
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.
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Double acting option permits operation of two pumps simultaneously, without external manifolds. (Note: Double acting operation requires additional air hose from controller to pump.)
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Sensitive air flow rate control enables high rate purging, and sampling flow rates as low as a 100 ml/min.
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.
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Available in pump diameters for 1.5`` (38.1 mm) and larger wells.
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Pumping rates up to 2.5 gpm (9.5 lpm) @ 25 ft. (7.62 m) in a 2`` (51 mm) well...large air and water porting enables faster pump/fill cycles; larger bladder than conventional bladder pumps permits more volume pumped per cycle.
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EPA recommended materials including Type 316 Stainless Steel and Teflon® or PVC and Teflon.
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.
Dedicated Wellhead Closures
Wellhead closures provide a necessary and convenient means of terminating dedicated tubing to the wellhead, supporting the pump, and housing the air water fittings.
- Tough Type l PVC construction with stainless steel hardware.
- .875 - inch water level access port.
- 36 - inch water discharge tube extension (stores in the water level access port).
Cold Weather Blow-Outs
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.
Portable Oil-Less Air Compressors
Lift, flow rate and reliability of a ground water sampling system require a dependable, practically designed and portable compressed air source. GeoPump air compressors are capable of producing lifts of up to 330 feet and displace sufficient air to provide the
highest pumping rates in the industry. All GeoPump compressors are oil-less, providing instrument grade air that contains no hydrocarbon in the air stream.
Well Purging / Development / Purge Pumps
GeoPump purge pumps are often added to the basic dedicated bladder pump system to increase the purging flow rate and decrease field time. Purge pumps offer flow rates up to 3.5 times higher than a conventional bladder pump alone which significantly reduces field costs over the life of a monitoring program.
Purge Packers
GeoPump Packers are designed to provide a leak proof seal between the well casing and the open or screened interval. The packers are installed on the bladder pump tubing such that the pump is in the sampling zone and the packer is in the casing immediately above. Between sampling events, the packer is deflated to permit the water level in the well to equalize with the water table. Prior to purging the packer is inflated, thus reducing the volume that must be removed before the sample is collected.
Shallow Well Sampler
The Model 5750 Shallow Well Sampler is a portable, peristaltic pump with a maximum lift capability of 26 feet. This pump is ideal for purging shallow monitoring wells, leaning GeoPump bladder pumps and tubing assemblies and a variety of applications where it is necessary to move small volumes of liquid.
Well Development Swabs
GeoPump Well Development Swabs features:
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Type 316 Stainless Steel and PTFE construction.
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Flexible fins that permit the swab to pass by fittings, dimples and other minor constrictions within the well while maintaining the correct diameter for effective surging.
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Field replaceable fin assemblies.
Tubing Assembly Options
GeoPump offers a variety of tubing options in twin bonded configurations. Material options of polyethylene, Teflon ® lined polyethylene, or pure Teflon® provide economy and chemical inertness. Bonded tubing eliminates the potential of interference with portable static water level measurement probes.
