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Diaphragm Pump for Sewage Pumping

Compare Penn Valley Pumps With Other Makes 1

A WWTP just expanded and upgraded their pump facilities. The facility chose double diaphragm pumps to transfer sewage from digesters for secondary treatment. Project participants included Mud Sucker Diaphragm Pumps and pump manufacturer Wastecorp Pumps.

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How a Double Disc Pump Works

Compare Penn Valley Pumps With Other Makes 3

We have all seen the outside of a double disc pump but rarely do we see what makes the pump actually work. Just to review, a double disc pump is a positive displacement pump that uses a trunnion (elastomer), a disc and a connecting rod to force sewage from the suction side to the discharge side of the pump by creating a vacuum inside the pump body. The valve chambers with the black check valves you see in the photo help to manage higher than normal concentrations of grit and solids in municipal wastewater.

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Compare Double Disc Pumps With Single Disc Pumps

Compare Penn Valley Pumps With Other Makes 3

Since we launched the Sludge Pro Disc Pump product line, there have been several questions as to whether or not a single disc or double disc pump is more appropriate for a specific wastewater treatment application.

To be clear, there is not always a need for a double disc pump, a single disc pump will fit the pump specification properly. One of the reasons why consulting engineers and contractors have put the double disc pump specification in place is because there has been few other alternatives.

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