Design Envelope 4382 dualArm Pumps

« Back

Summary
Applications
HVAC-system pumping; general purpose pumping; industrial/process pumping (water or glycol based)
Armstrong Design Envelope Pumps with integrated controllers are OSHPD pre-approved!
Description
Pipe-mounted 2-pump unit with integrated intelligent controls for space-saving installation, superior energy performance, and full redundancy or parallel-pumping operation.
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 or Parallel Sensorless control. Controls enclosure UL type 12 or UL type 4X (outdoor applications). NEMA premium motors. Inside single-spring mechanical seals
Performance range
Up to 1000 USgpm (63 L/s) flow; up to 140 ft (43 m) head
Temperature
250^oF (121^oC)
Power Range
0.33 hp to 7.5 hp (0.25 kW to 5.5 kW)
Size
1" to 8” (25 mm to 200 mm)

Ready to purchase? Need some help or have questions? Contact one of our closest reps.

Use ADEPT Select, Armstrong's selection tool, to quickly and easily select the model you require.

Find a Rep

ADEPT Select

Vertical In-Line design eliminates the need for inertia bases, housekeeping pads, and flex connectors and reduces piping requirement
2-pump casing for reduced footprint
Integrated intelligent controls eliminate procurement, installation (incl. wiring), calibration and maintenance of differential pressure sensors
Superior energy performance qualifies for significant cost recovery under utility and government rebate programs
Design Envelope selections frequently recommend a smaller motor and/or pump which reduces installed cost

Controls enclosure rated for UL type 4x. Equipped with overhead weather shield to prevent icing in cold weather or overheating in direct sunlight.

See all Outdoor Pumps

Integrated intelligent controls – combined with perfect component match-up and tuning – for up to 75% in energy savings over traditional constant speed and variable frequency operated pumping installations
Optional Parallel Sensorless control (patent pending) with best-efficiency staging of both pumps for additional energy savings
Shorter pipe runs for reduced system friction

Learn more

75% decrease in energy consumption reduces operational greenhouse gas emissions at equal ratio
Elimination of inertia bases, housekeeping pads, flex connectors and superfluous piping avoids all procurement related environmental impacts (material, energy, carbon)
Equipment downsizing mitigates environmental impacts associated with procuring unnecessarily large equipment
Integrated dualArm design packs and ships more economically for less packaging waste compared to loose component shipping and assembly

Learn more

Integrated intelligent controls – combined with perfect component match-up and tuning – make commissioning fast and easy
Integrated controls reduce radiofrequency interference and improve electromagnetic compatibility
DualArm design for full redundancy in case of emergency or routine servicing (each pump can be individually isolated from the system with the second pump still operating)
ETL Listed - conforms to UL STD 778
Certified to CSA STD C22.2 NO.108
OSHPD Special Seismic Certification Pre-approval (OSP) No OSP-0422-10