Rotary lobe pumps are ideal for wellpointing and sock. Wellpointing and sock require that the pump be able to selfprime, often to 20 ft; be able to pump both air and water without cavitation damage; and be able to overcome air leaks because of a high air handling capability and still continue to prime. Rotary lobe pumps are now the dominate pump used for wellpointing and sock in the USA. Our sister company www.hollandpump.com has over 200 wellpoint/sock pumps in its rental fleet. They have put more than 1.5 million hours on these pumps with outstanding results.
Rotary lobe pumps are often used for recovering oily water with solids or corrosives because it is self-priming, is low shear and can handle abrasives. Centrifugal pumps will thoroughly emulsify oil and water making their eventual separation for disposal more difficult and hence expensive. The pumps are well suited for pumping clean bentonite into slurry walls because the low shear and low speed results in less damage. LobePro Sludge pumps are designed to handle these applications.
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