Zoeller ZOELL-12821 Pump Performance Curve

The Zoeller ZOELL-12821 pump curve page provides industrial hydraulic performance data for wastewater transfer, slurry pumping, dewatering operations, bypass pumping, and municipal lift station applications.

Engineering Specifications

Manufacturer	Zoeller
Model Number	ZOELL-12821
Pump Type	Solids Handling Pump
Flow Range	405-3142 GPM
Total Dynamic Head	91-180 FT TDH
Peak Efficiency	69%
Motor Speed	3450 RPM
Voltage Options	460V
Motor Enclosure	Explosion Proof
Discharge Size	10" Discharge
Solids Handling Capacity	3" Solids
Impeller Style	Semi-Open Impeller
Bearing Frame Material	Cast Iron
NPSHr	12.4 FT

Pump Curve Image

Download Engineering PDF

Download Zoeller ZOELL-12821 Pump Curve PDF

Common Industrial Applications

• Municipal wastewater lift stations
• Industrial sump pump systems
• Mining slurry pumping
• Stormwater bypass systems
• Guide rail sewage systems
• Construction dewatering applications
• Corrosive process fluid handling
• Hazardous location pumping systems

Engineering FAQ

What does this pump curve illustrate?

The performance curve displays the hydraulic relationship between flow rate and total dynamic head for the Zoeller ZOELL-12821.

Can this model handle solids?

Yes. The hydraulic design supports up to 3" solids depending on the impeller and operating conditions.

What impeller style is used?

This model uses a semi-open impeller configuration for industrial and wastewater applications.

Can North Coast Process Equipment provide replacement recommendations?

Yes. NCPE can assist with crossover pump identification and equivalent replacement recommendations based on system requirements.