How a Double Disc Pump Works
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.
Pumps: How to Maintain a Continuous Flow and Minimize Pulsation
With pumping applications, one of the challenges you face especially when pumping thinner liquids, is to maintain continuous flow without “jerking the hose” or disruptions in pump productivity. One of the consulting engineering firms we have worked with in California illustrates this point well:
Drinking Water Transportation Systems
One of the questions we get from municipal emergency management agencies and larger corporations is if there is an economical method of providing clean drinking water via trailer or skid. Gilbert K from Clay County TN exemplifies some of the concerns about providing potable water in his community:
We have a rural community of about 20 residents where drinking water is not always accessible. A water truck service has been costing us a fortune to fill the residential drinking water tanks serving the homes. We are trying to reduce our budget by possibly investing in our own water trailer system but the unit has to be safe for storing and dispensing drinking water. We would be filling the water trailer either at the municipal water treatment plant 20 miles away or by a fire hydrant closer to the community. We also want to make sure that an F-150 truck can safely tow this trailer full. Please provide suggestions and a budgetary proposal. Thank you Gilbert – Clay County, TN USA.
Gilbert, you have a lot of options to provide your own municipal drinking water transportation system. We call it a water trailer or water wagon. We have supplied disaster relief agencies and emergency management government with the WT-500-DT for years – see the pictures in this post or click on the photo to see the website specs of the unit. This system feat
Orange County Waste Acceptance Facility Looks for Pump Solutions
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.
Working with Wastecorp, the company decided on a Sludge Master PE 942 with a 20 hp motor and mechanical force feed oile
Primary Sludge Pumps at a WWTP
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 to install a more robust pump model with features like ball check technology to manage varying solids percentages or abrasive solids. These pumps typically cost a bit more to begin, but the spare parts costs are much lower down the road. Examples of such pumps are plunger pumps, double diaphragm pumps and double disc pumps.
New Diaphragm Pump Options for Malaysia
The Mud Sucker Diaphragm Pump is expanding its presence across Malaysia with a wide variety of our Global pump products available in Kuala Lumpur, Kuala Terengganu, Kota Bharu, Ipoh, Kerteh and Dungun. Our diaphragm pumps have made great headway replacing older technology air operated double diaphragm pumps (AODD pumps) across the country due to increased attention
How to Pump Cooking Oil from Restaurants
In this post we provide answers to the question of how to pump out used cooking oil from restaurant waste collection bins especially in colder weather? Used cooking oil transforms into a gel when the surrounding temperature dips below 40°F (4°C). This makes the fluid very difficult to pump. Roger F., from Charlotte, NC conveys the difficulty in pumping cooking oil:
“We are trying to find optimum pumping solution for pumping used cooking oil (uco) from 100- 300 gallon grease bins at restaurant accounts. We’ve recently opened a plant in the Charlotte area and have been pumping with a trash pump. It may have started off great but the trash pump failed after about six months as colder weather gelled the oil. We want a solution to
mount to our truck that will allow us to effectively pump when cooking oil becomes like a gel or slurry at colder temps.” Thanks Roger F. – Charlotte, NC USA
Roger’s concern is well documented for waste oil collectors especially in Northern climates. First, you might want to try thinnin
Diaphragm Pump Parts for Any Make
Customers with other diaphragm pump makes have been calling in lately looking for spare parts kits, diaphragms and flappers for some makes and pump models that are either hard to find, or are no longer supported. Last week, Atlanta, GA emailed us with this question:
Hi, our construction company has six Homelite diaphragm pumps, two AMT Diaphragm pumps and three Mud Hog Model 305 E and 404. Can we get rebuild kits from Wastecorp for these diaphragm pumps? Thank you, Dave
Dave, Wastecorp offers several options for spare parts on AMT, Homelite and Mud Hog pumps. You need to check the model and serial number of the pump and then tell your Wastecorp pump parts representative what you are looking for.
Diaphragm Pump Spare Parts Kits
Spare parts kits can save you time and money when repiaring your diaphragm pump. Typically what’s included in these kits is diaphragms, flappers and gaskets. “Pro Kits” or comprehensive kits include the weights and hardwa
Connecticut Pump Options
Wastecorp has proudly served Connecticut's municipal and industrial pumping needs over over 20 years. From Darien, Derby, Hartford, Mystric and beyond our plunger pumps, diaphragm pumps trash pumps and now disc pumps work hard for the millions who indirectly depend on reliable pumping equipment to keep sewage in its place and water flowing.
Food Waste Pumps – Food Processing Facilities
The challenge for food waste processors is finding pumps for their applications that are versatile and robust enough to pump through a variety of conditions. This was just the case for a Fresno, California based
alternative energy company who earned a multi-year contract to accept expired and spoiled canned tomato paste, tomato sauce, fruit juice, ketchup and bulk tomatoes for Fresno and Bakersfield area grocery stores, prisons, hospitals, food preparation companies and more.