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. There have also been some stop and starts with competing technology from underfinanced companies trying to knock off the design with “dia-disk” pumps, etc.
The other major suggestion from operators is that double disc pumps have to be able to handle grit and solids more effectively. Otherwise they say, they would rather go with a plunger pump, rotary lobe pump or a progressive cavity pump. Continue reading
Primary sludge pumping from digesters
If your pump project calls for primary sludge pumps under 220 GPM, the Mud Sucker Double Diaphragm pump is something you should consider for municipal sewage and industrial sludge pumping applications.
Case in point: A Northeast urban wastewater treatment plant upgrade and expansion recently Continue reading
Primary Sludge Pump Options
Primary sludge pumps are typically used in municipal Wastewater treatment facilities to transfer digested sewage and sludge. This is a broad pump category that encompasses positive displacement pumps to pump sludge in ranges usually up to about 500 GPM. The choices of pumps vary from double diaphragm pumps, plunger pumps, double disc pumps, rotary lobe pumps, progressive cavity pumps and more.
In todays pump marketplace, there are generally two schools that operators and consulting engineers follow when specifying primary sludge pumps. The first option is Continue reading
Compare Sludge Pro and Penn Valley Pumps
Wastecorp has published a double disc pump comparison guide for consulting engineers, end users and pump distributors. This resource explains the difference between two different pump types and the methods each use to pump sewage, sludge and wastewater. You can download this comparison guide by clicking here
or continuing to read below.
Who is Wastecorp?
Wastecorp Pumps is an ISO 9001 and ISO 14001 certified pump manufacturer. Wastecorp manufactures the Sludge Pro brand double disc pump. The company specializes in sewage pump and wastewater pump manufacturing. This includes multiple products for municipal/industrial applications. Wastecorp has manufactured pumps since 1993 in the United States and Canada. Information about Sludge Pro Double Disc Pumps can be found at
What is a Penn Valley Pump (PVP)?
The Penn Valley pump is a diaphragm pump. PVP has fully acknowledged this in their patent # US 7,559,753 B2. The patent references George Burrage’s (a family member of PVP President) patent application # GB 2013287A as the basis of construction for the PVP pump. Nowhere in GB 2013287A does it reference a disc at all. This legal document fully acknowledges the fact that the Penn Valley pump is a diaphragm pump. PVP also Continue reading
Compare Sludge Pro and Penn Valley Double Disc Pumps
Things are heating up in the marketplace for double disc pumps and competition has a great way of exposing the true colors of competitors. Hearing what one double disc pump competitor says about another reinforces the need to do your homework so you are getting an accurate picture of the benefits and drawbacks of each make. Continue reading