QED Environmental Systems highlights its AutoPump Ultra 4+ Aggressive Fluid Duty landfill liquid pump that features upgraded materials that extends the pump’s service life and expands its use cases to a wider set of conditions. The AutoPump Ultra 4+ Aggressive Fluids pump has stainless steel parts that have been upgraded to 316-grade, dramatically improving corrosion resistance. The pump’s nonmetallic internal parts are polyvinylidene difluoride (PVDF). PVDF, a high-grade engineered plastic, retains higher strength at elevated temperatures and has extremely broad chemical resistance. These components ensure the new pump withstands the acidic and oxidizing cleaning agents sometimes used for pump maintenance.