Armstrong - Model UL 778 -Pipe-mounted Pumping Unit

Applications : HVAC-system pumping and control; general purpose pumping; industrial/process pumping and control (water or glycol based). Armstrong Design Envelope Pumps with integrated controllers are OSHPD pre-approved!

Description : 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.

Materials:

• Cast-iron or ductile iron casing
• Cast iron or bronze impeller
• Sintered silicon carbide mechanical seal

Configuration : 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. Available with NEMA premium motors

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)

Temperature : 300oF (150oC)

Power Range : 1 hp to 1250 hp (0.75 kW to 900 kW)

Size : 1.5" to 20” (40 mm to 500 mm)