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Specific Gravity Skimmers
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Specific Gravity Skimmers SPG P
SPG Models: SPG-2 For 2-inch wells; five models for tidal, dual pump, high-water, and shallow wells SPG-4 For 4-inch wells; five models for tidal, dual pump, high-water, and shallow wells OVERVIEW The family of Specific Gravity Skimmers (SPG) when coupled with shallow or deep-well product pumps, are designed to recover high volumes of free-floating hydrocarbon (< 0.85 Specific Gravity) from depths up to 250 feet (76m) while maintaining a thin product lense. The floating intake head follows water table fluctuations and with optional features such as High-Water Shut-Off (HWSO) will automatically turn off to prevent potential water contamination. Alternate size SPG Skimmers are available for operating in 2-inch (5cm), 4-inch(10cm), and 6-inch (15 cm) diameter wells. Tidal skimmers with extra long strokes are also available for sites with high and low tide considerations. The SPG Skimmer is also designed to effectively draw water from below the skimmer in dual pump applications. The SPG Skimmer consists of three main items: a Floating Intake Head, Guide Rod & Flexible Tube, and two Well-Centering Disks.
Downloads
- Specs SPG P download
Product Description
METHOD OF OPERATION
The skimmer is lowered into the well until the midpoint of the skimmer's travel is located at the fluid level in the well and then connected to a surface or down-well product pump.
The skimmer has a floating intake head that follows the fluctuating water table. Hydrocarbon first enters the skimmer through the floating intake head's product intake, down through a flexible, yellow tube, through the product pump, and into a product storage tank.
FLOATING INTAKE HEAD
All product which enters the floating intake head passes down through the flexible tube, up into the hollow guide tube, and is drawn out of the well by a product pump.
The Floating Intake Head:
Consists of a monolithic cylindrical buoyant float made of a petroleum resistant engineering plastic having a fluid intake located on the top of the float.
Floats slightly above the product-water interface in the well and automatically adjusts to any fluctuation of the groundwater within its travel range.
Slides on a hollow, stainless steel guide tube which passes down through the center of the skimmer head.
Is connected to the guide tube via a flexible (fuel rated) tube which hangs below the skimmer head and guide tube.
Skimmer Option
SPG Skimmers can have groundwater withdrawn directly through them. This is accomplished by a water extension pipe going down through the float. The standard SPG-2 is built with the water tubes in place. CEE can provide either pneumatic or electric water depression pumps, depending upon the water drawdown rate.