Positive displacement blowers continue to gain in popularity in the septic service and hydroexcavation industries. Big power and easy maintenance are the major reasons why. The Challenger 4310 from National Vacuum Equipment is the manufacturer’s newest entry on the market.
This quiet, environmentally friendly machine offers a ballast cooling and porting design that allows for continuous pumping at full vacuum without overheating. It is capable of airflow to 940 cfm at 4,500 rpm with no oil mess, according to Jason Reading, national sales manager for NVE.“We feel that the Challenger 4310 heavy-duty vacuum blower truly shines in the waste pumping markets,”

















