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Lemco Drawdown Well Seals |
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AIR & CONTAMINATION BARRIER FOR WATER WELLS The Lemco Drawdown Well Seal protects the submersible pump by forming an airtight seal to control drawdown and prevent cavitation which causes the motor to burn out. The drawdown factor, which is the difference between the static water level and the pumping water level, becomes a non-issue because the seal forces water to be pumped from the aquifer below, instead of from the static water level above the pump. In the illustration, the apparent pumping water level is below the pump inlet, but the Lemco Seal keeps the pump submerged in water pumping normally, unaffected by the amount of drawdown outside the well casing. During the pumping cycle, the raising and lowering of the water level causes aeration of the water, corrosion to build up and rust to form. The Lemco Seal provides a positive barrier to eliminate wash-down of rust and slime, especially in black pipe, and it retards corrosion. Air, dirt, sand, foreign objects and contamination from ground pollution entering through the pitless unit, cracked casing or a loose pipe joint is contained above the seal. | 
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| | | • | Control Drawdown Now and During Future Dry Spells. | • | Increase well production. | • | Prevent Air From Entering the Submersible Pump. | • | Retard corrosive buildup around pump and screen area. | • | Increase pump and system life. | • | Center and stabilize the pump. | • | Available for Submersible and Turbine Pumps. | • | Made of Zinc Plated Mild Steel or Stainless Steel. |
For more information, refer to About Us > |
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