Armstrong 4380 Series Vertical In-Line Pumps

Armstrong 4380 pumps are available as part of the Armstrong Design Envelope offering or as standard commercial pumps.

Armstrong 4380 Vertical In-Line Pumps

Armstrong 4380 pipe-mounted pumps are designed for space-saving installation and long service life. The vertical in-line design eliminates the need for inertia bases, housekeeping pads, flex connectors, and field alignment or grouting requirements and minimizes space and pipe requirements.

Armstrong 4380 Vertical In-Line Pumps

Armstrong 4380 Pump Features:

  • Cast iron or ductile iron casing 
  • Silicon sintered carbide mechanical seal
  • Cast iron or bronze impeller
  • Inside single-spring mechanical seal
  • Up to 2,500 US GPM (160 L/s) flow; up to 300 ft (90 m) head
  • Maximum temperature of 250°F (121°C)
  • Power range of 0.33 HP to 60 HP (0.25 kW to 45 kW)
  • 1.5" to 8" (40 mm to 200 mm)

Armstrong 4380 Design Envelope Pumps

Design Envelope 4380 pumps are available in multiple configurations and sizes for HVAC-system pumping and control, general purpose pumping, or industrial/process pumping and control (water or glycol-based) applications.

4380 pumps are pipe-mounted UL 778 pumping units with integrated intelligent controls for space-saving installation and superior energy performance. They save up to 75% in energy over comparable traditional constant speed, or variable frequency operated pump installations. In addition, remote services through the internet enhance reliability and sustain optimal performance over the life of the pumps.

The Armstrong 4380's vertical in-line design eliminates the need for inertia bases, housekeeping pads, and flex connectors and reduces piping requirements. In addition, the integrated intelligent controls eliminate separate mounting of variable frequency drive (VFD) as well as procurement, installation (including wiring), calibration, and upkeep of differential pressure sensor.

The integrated intelligent controls – combined with perfect component match-up and tuning – save up to 75% energy over traditional constant speed and variable frequency operated pump installations.

Integrated intelligent controls are available for fast and easy commissioning and reduced radio frequency interference/improved electromagnetic compatibility. Optional performance management provides early warnings, online trending and analysis, and reports and summaries. Optional sediment filters or separators are available for extended seal life in contaminated systems—Independent operation through embedded Sensorless control or in conjunction with a building automation system (BAS).

Armstrong Design Envelope 4380 Pumps

Armstrong Design Envelope 4380 Pump Features:

  • Ductile iron e-coated casing
  • Stainless steel impeller
  • Sintered silicon carbide mechanical seal
  • On-board Intelligent Variable Speed controls with Sensorless control
  • Controls enclosure UL type 12 or UL type 4X for outdoor applications
  • 1-10 HP range standard with DEPM motors that reduce losses by more than 20% over NEMA Premium efficiency
  • Network capable of remote performance management services
  • 15 to 450 US GPM (1 to 28 L/s) flow
  • 10 to 160 ft (3 to 48 m) head (composite curves available)
  • Maximum temperature of 250°F (121°C)
  • Power range of 0.25 HP to 10 HP (0.19 kW to 7.5kW)
  • 1" to 6" (25 mm to 150 mm)

Other Armstrong Vertical In-Line Pumps

Armstrong 4300 pumps are available in either Design Envelope or conventional models, in horsepowers ranging from 1/3 HP to 10 HP (Design Envelope) or 1 HP to 1250 HP (conventional), and in sizes 1" to 20" (Design Envelope) or 1-1/2" to 20" (conventional).

Armstrong 4360 pumps are available as conventional commercial pumps, in horsepowers ranging from 1/3 HP to 15 HP, and in sizes 1-1/4" to 3".

Armstrong Design Envelope Solutions

Design Envelope technology is a demand-based intelligent control solution that models equipment and system behavior, monitors actual system conditions, and dynamically adjusts equipment operation to match the system demand. Design Envelope technology is at the core of Armstrong’s groundbreaking advances in building performance. Design Envelope technology enables the greenest, most flexible, and most cost-effective fluid-flow and HVAC systems on the planet – resulting in the lowest installed and operating cost with the same equipment.

View the Armstrong Design Envelope playlist on YouTube.

Armstrong Pump Manager

Pump Manager from Armstrong is a performance management service to help operators maintain optimized long-term efficiency.

Armstrong 4380 Pump Curves

A pump performance curve indicates how a pump will perform against specific pressure head and flow rates. A curve is defined for a specific operating speed (RPM) and inlet/outlet diameter.

Armstrong 4380 & 4300 Design Envelope Pump Curves

Armstrong 4380 Pump Submittals

Armstrong Series 4380 Vertical In-Line Pumps Brochure

Armstrong Design Envelope Intelligent Variable Speed Pumps Brochure

Visit Armstrong Fluid Technology's Design Envelope 4380 Pumps page or 4380 Vertical In-Line Pumps page to view the complete list of submittals, manuals, service work instructions, charts, and more.

Armstrong 4380 Pump Motors

Armstrong 4380 pumps are equipped with high-efficiency NEMA-premium motors for significant energy consumption and cost reduction. All motors are suitable for inverter-fed service. The vertical motor positioning on Design Envelope 4380 pumps requires up to 60% less floor space compared to other pump configurations.

Armstrong 4380 Pump Seal Kits and Other Parts

Armstrong offers pump seal kits individually or as part of a complete repair kit to support the installation and maintenance of 4380 Vertical In-Line pumps.

Armstrong 4380 Seal Kit

Shop Armstrong Pump Parts

Armstrong Design Envelope 4380 Pump Seal Replacement

Quote Request

Please call 844-448-0880 for Armstrong 4380 Series Vertical In-Line Pumps pricing and availability, or complete the quote request form below.

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