Centrifugal pump 4312 series

waterelectricindustrial

ApplicationsHVAC-system pumping; general purpose pumping; industrial/process pumping (water or glycol based) Armstrong Design Envelope Pumps with integrated controllers are OSHPD pre-approved! DescriptionPipe-mounted 2-pump unit with integrated intelligent controls for space-saving installation, superior energy performance, and full redundancy during operation. Saves up to 75% in energy over comparable traditional constant speed or variable frequency operated pump installations. Materials Cast or ductile iron casing Cast iron or bronze impeller Sintered silicon carbide mechanical seal ConfigurationOn-board Intelligent Variable Speed controls with Sensorless control. Controls enclosure UL type 12 or UL type 4X (outdoor applications). High-efficiency NEMA premium motors available. Inside single-spring mechanical seals. Performance rangeUp to 1250 USgpm (80 L/s) flow and 250 ft (75 m) head Temperature250oF (121oC) Power Range1 hp to 40 hp (0.75 kW to 30 kW) Size