Heger Pumps Inc - Dragflow products

A chopper pump is a centrifugal pump which is equipped with a cutting system to facilitate chopping or maceration of solids that are present in the pumped liquid. The main advantage of this type of pump is that it prevents clogging of the pump itself and of the adjacent piping, as all the solids and stringy materials are macerated by the chopping system. Chopper pumps exist in various configurations, including submersible and dry-installed design and they are typically equipped with an electric motor. Due to its high solids handling capabilities, the chopper pump is often used for pumping sewage, sludge, manure slurries, and other liquids that contain large or tough solids.

A Grinder Pump “grinds” waste into a fine slurry and pumps it wherever it needs to go. Grinder pumps are installed when one has to pump into a pressurized sewer main or for grinding food waste in and around digesters.

In-line Shredder for solid materials suspended in waste or sewage water or re-circulation lines on digesters to shred (rags, diapers etc) or increase surface area of the biomass circulated. HCF-S Series Shredders can be attached to a pump on the discharge or the suction side.

Flows to from 100 m3/h to 10000 m3/h Heads to 350 m; The HVP Series of pumps is a multi-stage vertical turbine pump. The HVP Series of pumps can be fitted with axial and semi-axial impellers. The HVP Series of pumps can have double suction impellers andmultiple stages. The HVP Series of pumps was developed using modern, sophisticated CFD and Finite Element for structural analysis and pump layout. The HVP product line can be supplied with different sizes of suction, discharge and column piping.

An agitator for slurry pump creates a high velocity water stream away from the pump suction, impacts the sand or whatever material in such a way that it gets put in suspension. This creates a fluid / solid mixture around the pump suction that can then be easily pumped. (remember we only have air pressure plus submergence for placing/pushing the material into the pump suction. Solid contents of up to 30 – 40% can be reached. A submersible slurry pump without mechanical agitation will only pump the water, leaving the solids behind to accumulate around your pump intake, and eventually starve the pump by blocking the intake.

Flow : 20,250 gpm (4600 m3/h). TDH single stage : 224 ft (70 m). PH Range : 0 - 14.

 Flow : 20,250 gpm (4600 m3/h). TDH single stage : 224 ft (70 m).

The HVP series vertical cantilever pumps benefit from our modular pump design. This allows the HVP Series to carry shared hydraulic components that are also used in our HPK, HNP-K and HNP-W series of pumps.

The HVL series line shaft pumps benefit from our modular pump design. This allows the HVP Series to carry shared hydraulic components that are also used in our HPK, HNP-K and HNP-W series of pumps.

An automatic air relief valve is a needed and necessary part of a raw sewage lift station installation. Featuring a diaphragm operated shut off / opening system regulated by a spring, it is set with a threaded connection and a drain back to suction.