Tag: How a double disc pump works

Double Disc Pumps and Municipal Sewage Pumping

by wastecorp in
CategoriesDouble Disc Pumps, How a Double Disc Pump Works, Positive Displacement PumpTags, , , , , , , , , , , , , , , ,
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double disc pump

For years, we have been asking wastewater treatment plants (WWTP) what they like about double disc pumps and what they don’t like. We have even been compiling a database with what regions of the USA and Canada have success with this type of pump for sewage and which areas have had more challenges.

One of the things that most WWTP’s say is that there has been limited competition in the specifications put out for bid by municipalities and consulting engineers working on wastewater projects. As we all know a monopoly in the pump industry is seldom a good thing for quality, innovation and of course pricing for pumps and parts.

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How a Double Disc Pump Works

by Wastecorp Team in
CategoriesCompare Penn Valley Pumps With Other Makes, Double Disc Pumps, Positive Displacement PumpTags, , , , , , , , , ,
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double disc pump single

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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