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 or parallel-pumping operation. Saves up to 75% in energy over comparable traditional constant speed or variable frequency operated pump installations.
Materials
Cast iron or ductile iron casing
Cast iron or bronze impeller
Sintered silicon carbide mechanical seal
ConfigurationOn-board Intelligent Variable Speed controls with Sensorless or Parallel Sensorless control. Controls enclosure UL type 12 or UL type 4X (outdoor applications). Available with NEMA premium motors. Outside balanced or inside single spring mechanical seal
Performance rangeUp to 1250 USgpm flow and 250 ft head (80 L/s, 76 m)
Temperature250°F (121°C)
Power Range0.33 hp to 75 hp (0.25 kW to 55 kW)
Size1″ to 8” (25 mm to 200 mm)
