Double Disc Pump or Single Disc Pump? You Decide.
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 specific wastewater treatment applications.
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 up until recently there have been few other alternatives. In many cases, a double disc pump is simply overkill in both pump, footprint, cost and maintenance time down the road.
Single Disc Pump Where a Double Disc Pump is Overkill
Take the Sludge Pro single disc pump for example. This pump series offers up to 150 GPM pumping capabilities with a single disc, trunnion and pump body. This reduces the footprint in most municipal WWTP’s by at least 20%. You also reduce repair costs by replacing only one disc, trunnion and connecting rod instead of two. With over 21 years of pump manufacturing experience, Wastecorp designed the Sludge Pro with a heavy duty ball valve configuration because this design has demonstrated improved solids and slurry pumping capabilities over traditional double disc pump manufacturers. The Sludge Pro single disc pump is available in 3”, 4” and 6” connection sizes with discharge head up to 184’ or 80 psi. You can learn more about Sludge Pro single disc pumps at http://www.wastecorp.com/disc-pumps.html or speak to a disc pump engineer at 1-888-829-2783 anywhere in the United States and Canada. You can email firstname.lastname@example.org to find out where the closest double disc pump or single disc pump engineer is closest to you. There are also educational resources about double disc pumps and single disc pumps at your disposal. See video comparing disc pumps and decide for yourself. You can also see video of both double disc pumps and single disc pumps by clicking here.
Orange County Sewage Pumps
Orange county is home to dozens of resorts, hotels and theme parks which generate tens of millions of gallons of wastewater that needs to be treated every year. When an Orlando, Florida renewable energy company earned a multiyear contract to accept waste from local resorts and theme parks, they needed severe duty pumps to transfer thick slurries and solids.
The details of the project called on the requirement of pumps to transfer ground up seafood shells, grease trap waste, utensils, animal renderings, wastewater and more. In this application, the waste is unloaded from a tanker into a waste pit. The waste is then transferred to a conveyor system which then separates most of the foreign objects like utensils, large solids, plastic bags and more. The remaining waste is sent through the Sludge Master plunger pump and then to the digesters of the wastewater treatment plant. With millions of people visiting Orlando resorts and theme parks every year, this amounts to a lot of waste, as tanker trucks deliver new loads of slurry like liquid waste around the clock. 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
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