End Suction Base Mounted Pumps
1 model in this family. Representative models: Series 4030.
International brand dossier
Armstrong Pumps
Armstrong Fluid Technology is a fluid-flow equipment manufacturer incorporated in 1934, now known for intelligent pumps, valves, heat exchangers, controls, and integrated plant packages.In water-related systems it is relevant where HVAC, district energy, building services, heat transfer, fire protection, and digital pump optimization intersect with plant water management.
Armstrong Pumps's position in pumps and pumping equipment is defined by product families such as End Suction Base Mounted Pumps, Stock Motor Pumps, Motor Mounted Pumps and Vertical In-Line Pumps.
The portfolio is best understood inside raw water intake, RO/NF feed, transfer, boosting, chemical dosing, wastewater lift, and desalination hydraulics, where engineers compare the technology route, family boundaries, and duty fit before narrowing to individual models.Representative series on this page include Series 4030, Series 4270 and Series 4280.Selection should focus on flow, head, efficiency, NPSH margin, wetted materials, seals, and drive arrangement.
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Indexed models
6
Product families
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Subgroups
Product range and selection
How to choose Armstrong Pumps & Pumping
This section answers two questions: which main product families Armstrong offers, and which parameters to compare before choosing a specific model.
Step 1: Choose a product family by application
The main families shown on this page are End Suction Base Mounted Pumps, Stock Motor Pumps, Motor Mounted Pumps, and Vertical In-Line Pumps. Start with the treatment objective, equipment format, and operating duty, then use the model index below to compare exact specifications.
Step 2: Confirm the model by key parameters
After choosing a product family, compare flow and head, materials, efficiency, and duty cycle. Replacement projects should also verify installation or loading conditions, interfaces, and compatibility with the existing system; new projects should consider operating practice, maintenance, and spare-parts or consumables availability.
Product family overview
6 product familys on this page.
Stock Motor Pumps
1 model in this family. Representative models: Series 4270.
Motor Mounted Pumps
1 model in this family. Representative models: Series 4280.
Vertical In-Line Pumps
2 models in this family. Representative models: Series 4300, Series 4360 & 4380.
Vertical Multistage Pumps
1 model in this family. Representative models: Series 4700.
HSC Pumps
1 model in this family. Representative models: Series 4600.
Quick Model Index
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Series 4030
End Suction Base Mounted Pumps
Connections: Drilled and tapped connections for gauges and drain
Armstrong Series 4030 is a horizontal, base-mounted centrifugal pump with a back pull-out design and a self-venting, radially split casing.
Series 4270
Stock Motor Pumps
Max. flow (3600 rpm): 130 USgpm (8.2 L/s) · Max. head (3600 rpm): 130 ft (39.6 m) · Max. working pressure: 150 psig (1034 kPa)
The Armstrong Series 4270 is a motor-mounted centrifugal pump designed for cooling towers, HVAC, and general-purpose applications.
Series 4280
Motor Mounted Pumps
For glycols above 30% by weight: Silicon carbide face
The Armstrong Series 4280 is a motor-mounted, single-stage centrifugal pump designed for horizontal end suction applications.
Series 4300
Vertical In-Line Pumps
Flow Range: In excess of 30,000 USgpm (1,900 L/s) · Motor Connection: Heavy cylindrical bracket with 360° register provides a rigid union of pump and motor
The Armstrong Series 4300 are single-stage, vertical in-line split coupled pumps designed for commercial HVAC applications.
Series 4700
Vertical Multistage Pumps
Speed: 50–60 Hz, 3000-3600 RPM · Pressure Capabilities: Beyond 300 psi
Armstrong Series 4700 Vertical Multistage Pumps are designed for high-efficiency performance in industrial and building services.
Series 4360 & 4380
Vertical In-Line Pumps
Hydrostatic Test Pressure: 150% maximum working pressure at ambient temperature · Pressure/Temperature Chart: The document includes pressure/temperature charts for various configurations:
The Armstrong Series 4360 and 4380 are close-coupled, single-stage, vertical in-line pumps designed for applications like cooling, heating, and pressure boosting.
Brand Products & Technical Documents
7 product profiles with integrated document access
Each card keeps the curated model introduction and combines the readable datasheet page, OEM PDF, and official source. Product understanding and document access now share one card set.
End Suction Base Mounted Pumps
1 product profile
Pumps & Pumping
Product profile
Series 4030
Armstrong Series 4030 is a horizontal, base-mounted centrifugal pump with a back pull-out design and a self-venting, radially split casing.
Stock Motor Pumps
1 product profile
Pumps & Pumping
Product profile
Series 4270
The Armstrong Series 4270 is a motor-mounted centrifugal pump designed for cooling towers, HVAC, and general-purpose applications.
Motor Mounted Pumps
1 product profile
Pumps & Pumping
Product profile
Series 4280
The Armstrong Series 4280 is a motor-mounted, single-stage centrifugal pump designed for horizontal end suction applications.
Vertical In-Line Pumps
2 product profiles
Pumps & Pumping
Product profile
Series 4300
The Armstrong Series 4300 are single-stage, vertical in-line split coupled pumps designed for commercial HVAC applications.
Pumps & Pumping
Product profile
Series 4360 & 4380
The Armstrong Series 4360 and 4380 are close-coupled, single-stage, vertical in-line pumps designed for applications like cooling, heating, and pressure boosting.
Vertical Multistage Pumps
1 product profile
Pumps & Pumping
Product profile
Series 4700
Armstrong Series 4700 Vertical Multistage Pumps are designed for high-efficiency performance in industrial and building services.
HSC Pumps
1 product profile
Pumps & Pumping
Product profile
Series 4600
The Armstrong Series 4600 is a single-stage, double-suction horizontal split case centrifugal pump designed for HVAC and industrial applications.