Design Envelope 4382 dualArm Pumps

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Design Envelope 4382 dualArm Pumps

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  • 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

    250o F (121o C)

  • Power Range

    1 hp to 7.5 hp (0.75 kW to 5.5 kW)

  • Size

    3" to 8” (80 mm to 200 mm)

Lowest installed cost

  • 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
Design Envelope

Lowest installed cost. Lowest operating cost.

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Lowest operating cost

  • 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 
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Lowest environmental cost

  • 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
Sustainability

Sustainability

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Lowest project and operating risk

  • 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
Tridel Ventus

Case study: Living up to LEED

Tridel's Ventus at Metrogate is 85% more energy efficient after retrofit.
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Learn more

(PDFs)


U.S.A. Utility Energy Rebate Info.

Design Envelope Pumps - solution outline

Design Envelope single-phase power supplement

Variable frequency drives and the use of bypasses - fact sheet

Armstrong Design Envelope - FAQs


Submittals (single-phase)

(PDF)

Submittals

(PDF)

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