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design envelope 4300 pumps


HVAC-system pumping and control; general purpose pumping; industrial/process pumping and control (water or glycol based) 


Pipe-mounted UL 778 pumping unit with integrated intelligent controls for space-saving installation and superior energy performance. Saves up to 75% in energy over comparable traditional constant speed or variable frequency operated pump installations. Remote services through internet to enhance reliability and sustain optimal performance over life of pumps.


Ductile iron e-coated casing

Stainless steel impeller

Sintered silicon carbide mechanical seal


On-board Intelligent Variable Speed controls with Sensorless control. Split-coupling design and outside balanced or inside single spring mechanical seal. Controls enclosure UL type 12 or UL type 4X for outdoor applications. 1-10hp range standard with iECM motors that reduce losses by more than 20% over NEMA Premium efficiency. Network capable for remote performance management services. 

Performance range

25 to 25,000 USgpm (1.5 to 1500 L/s) flow; 10 to 300 ft (3 to 90 m) head (composite curves available)


300oF (150oC)

Power Range

1 hp to 1250 hp (0.75 kW to 900 kW)


1.5" to 20” (40 mm to 500 mm)

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