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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) 

  • 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, ductile iron or bronze casing
    • Cast iron or bronze impeller
  • 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 63 L/s (1000 USgpm) flow; up to 43 m (140 ft) head

  • Temperature

    121o C (250o F)

  • Power

    0.25 kW to 5.5 kW (0.33 hp to 7.5 hp)

  • Size

    25 mm to 200 mm (1" to 5”)

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

Pump Models Designed and Engineered for Outdoor Operation

Controls enclosure rated for UL type 4x. Equipped with overhead weather shield to prevent icing in cold weather or overheating in direct sunlight.
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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
  • Parallel Sensorless control with best-efficiency staging of both pumps for additional energy savings (patent pending)
  • Advanced seal design for zero lubrication and seal adjustments
  • Shorter pipe runs for reduced system friction 

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 radio frequency interference and improve  electromagnetic compatibility
  • Advanced seal design eliminates the need for lubrication and seal adjustments
  • 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)
Tridel Ventus

Case study: Living up to LEED

Tridel's Ventus at Metrogate is 85% more energy efficient after retrofit.
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360 Service and Support

Design Envelope IVS Pumps with Cloud Based Active Performance Management – solution outline

Variable frequency drives and the use of bypasses - fact sheet

Armstrong Design Envelope - FAQs

ECOnomics - brochure

Energy Audit - brochure (India)

E-Coating - white paper

Working Clearances of Design Envelope Pump Controls - WhitePaper

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