The Vaughan Chopper Pump is a centrifugal pump with the unique ability of chopping all incoming solids prior to pumping. This not only protects the pump from clogging, but also provides added benefit to downstream components, processes, and the environment.
All wear components are cast steel and heat treated for maximum impact and wear resistance. Combined together, these heavy duty patented components create the ultimate pump for handling severe solids.
This same basic concept has been used in Vaughan's vertical wet well design for almost a half-century.
Chopping is accomplished by the scissor action of the leading edges of the impeller vanes cutting against the opposing edges of the cutter bar.
All solids are chopped as they enter between the cutter bar and the impeller vanes. The smaller solids are easily pumped by the centrifugal action of the impeller.
With over 30,000 units in service, the Vaughan Chopper Pump has not only proven it's value in problem solving, but also established itself as the reliable alternative to conventional pumping. Over the years, product reliability has also allowed Vaughan to guarantee the NON-CLOG performance of all chopper pumps. This guarantee is your written assurance of clog-free solids-handling performance, above-and-beyond the standard materials-and-workmanship warranty.
Below is a sample guarantee so you can see how simple and direct Vaughan's guarantee reads — no "catch phrases" or vague requirements.
Customer agrees to store and install the pump according to Vaughan recommendations (ref: O&M manual). Start up must not exceed 6 months after receipt at job site. All associated devices shall be installed and fully functional for pump protection.
Customer agrees to fill out and return the start-up certification sheet located in the O&M manual, and to notify Vaughan or the local factory representative of any problems encountered within 24 hours of the occurrence. Vaughan reserves the right to make any corrective changes to the pump during the guarantee period. If the above terms are met, and pump failure still occurs, then Vaughan shall be obligated to accept return of the pump, freight prepaid, and refund the purchase price of the pump.
This guarantee does not replace Vaughan's standard one-year materials and workmanship warranty. The purchase of the pump must be in strict accordance with the details of the quotation, including the terms of payment.
Vaughan is not responsible for the effects of abrasion and corrosion. Materials of construction are to be specified by the customer. Customer agrees to perform routine maintenance and repair, per the guidelines of the O&M manual.
Vaughan is not responsible for the determination of head or flow requirements. Pump must be applied within the efficiency boundaries of the pump performance curves, unless approved by Vaughan.
From food processing to silt ponds, the Vaughan Chopper Pump can handle it.
RAW SEWAGE: Lift stations, CSO facilities, headworks, prisons, hospitals, restaurants.
SCREENINGS / SEPTAGE: Raw concentrated solids including rags, plastics and hair.
CLARIFIER SCUM PITS: Primary or Secondary scum without plugging or air binding.
SLUDGE TRANSFER: Eliminates "roping" and clogging in clarifier underflow to thickeners.
RAS / WAS: Continuously conditions Return and Waste Activated Sludges.
THICKENED SLUDGE / DIGESTED SLUDGE TRANSFER: Handles high sludge consistencies.
DIGESTER MIXING: Rotamix system conditions and mixes in a dual-zone rotational flow pattern.
DIGESTER RECIRCULATION: Eliminates heat exchanger clogging while conditioning sludge.