Design Envelope 4300 Pump-in-a-Box 

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Design Envelope 4300 Pump-in-a-Box 

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Design Envelope PiB

  • Summary
  • Applications

    HVAC-system pumping and control; general purpose pumping; industrial/ process pumping and control (water or glycol based)

  • Description

    Pipe-mounted pump 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. Available for express shipment, usually within 48 hours

  • Materials

    • Cast 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. NEMA premium motors.

  • Performance range

    Up to 550 USgpm (35 L/s) flow and 130 ft (39 m) head (see composite curves)

  • Temperature

    300°F (150°C)

  • Power Range

    10 hp to 15 hp (7.5 kW to 11 kW)

  • Size

    3" to 4” (80 mm to 100 mm)

Lowest installed cost

  • Vertical In-line design eliminates the need for inertia bases, housekeeping pads, and flex connectors and reduces piping requirements
  • Integrated intelligent controls eliminate separate mounting of variable frequency drive (VFD) as well as procurement, installation (incl. wiring), calibration and upkeep of differential pressure sensor
  • Vertical motor positioning requires up to 60% less floor space compared to other pump configurations
  • Expertly staggered product line for perfect pump match-up and selection especially in retrofit situations
  • Superior energy performance qualifies for considerable 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.


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 pump installations 
  • Split-coupling design for easy seal service without removal of pump or motor
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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 design packs and ships more economically for less packaging waste compared to loose component shipping and assembly



Lowest project and operating risk

  • Integrated intelligent controls for fast and easy commissioning as well as reduced radio frequency interference/ improved electromagnetic compatibility  
  • Available for express shipping, usually within 24 hours * Single source-responsibility for optimum design and field support 
  • Independent operation through embedded Sensorless control or in conjunction with a building automation system (BAS)
Case studies

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U.S.A. Utility Energy Rebate Info.

Pump-in-a-Box - solution outline

Fused Disconnects for use with Design Envelope Pumps - WhitePaper

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