From ThomasNet: Blackhawk Technology Company, the industry's leading manufacturer of severe-service piston pumps and supplies, has developed a technologically advanced design for its electric top-head-drive pumps to make servicing and repair easier in difficult locations.
"The Anchor Electric's positive-displacement piston pumps put the electric motor and controls outside of the well, tank or sump, not down with the liquid being pumped," said Mark Bertane, Blackhawk president. "Inlet clogging is eliminated, and servicing is performed safely and easily above the wellhead. No pump pulling is required, and working parts are on the surface, making them easy to service."
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Blackhawk Develops Advanced Electric Piston Pump to Ease Maintenance in Tough Applications