QED Environmental Systems is the leading manufacturer of innovative environmental products.
For over 35 years their expertise has included Pumping Systems, Landfill Products, and Air Strippers.

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High-Clearance AutoPump® AP4.5 Ultra | Overview



Low-maintenance, high-performance pump runs for months in wells where traditional pumps fail in days


The new AutoPump® AP4.5 Ultra (Patent Pending) delivers superior performance, running many times longer between service events. A pump installed for field testing needed just 30 minutes to clean after 220,000 minutes (348,965 cycles!) of uninterrupted run time – in a well that had been out of compliance for the previous 3 years, requiring pump cleaning every 3 to 5 days.

With a larger diameter and three times the clearance between the float, casing and discharge tube, the AP4.5 Ultra achieves the same flow rate as the standard AP4 with fewer cycles. This results in less wear per gallon pumped, extending equipment life cycle. Greater clearance also enables the pump to deal with high viscosities, solids content and precipitates in the pumped fluid.

Proprietary non-stick finishes combine with the higher-clearance design to reduce solids buildup, increasing the interval between required service events even further. Pump cleaning is much faster and easier, often needing only a water spray and a light wipe. Metallic parts are all 316 grade Stainless Steel, resisting corrosion by the harshest leachates and highest temperatures.

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AutoPump® AP4.5 Ultra



pdfDownload the AutoPump® AP4.5 Ultra Datasheet4.82 MB

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Site Maintenance Costs

Reduction in pulling pumps for service, “jump starting,” etc. frees technicians for other tasks.

Extended Uptime AutoPump Image

Extended Uptime

Proprietary finishes reduce buildup and extend the time between cleaning.


Unique construction reduces wear on moving parts, resists clogging by solids, pumps longer without needing cleaning.

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