Armstrong 4280 Motor Mounted Pumps
- Applications-HVAC-system pumping; light industrial / process pumping.
- Description-The Armstrong 4280 horizontal end-suction pumps are equipped with close-coupled motors to minimize footprint requirements.
- Materials(MOC)-Cast iron, ductile iron, or bronze casing, Cast iron or bronze impeller.
- Configuration-Inside single-spring mechanical seal
- Performance range-Up to 2,000 USgpm (125 L/s) flow; up to 400 f (120 m)
- Temperature-250°F (121°C)
- Power Range-0.33 hp to 60 hp (0.25 kW to 45 kW)
- Size-1″ to 6” (25 mm to 150 mm)
Description
Benefits & Features
Best-in-class design
- ANSI style centerline discharge casing eliminates casing vapor lock
- Sintered silicon carbide mechanical seal seat for longer life
- Confined casing gasket eliminates blow-outs
- Pre-lubricated and sealed ball bearings for convenient installation (simply pipe, align, wire and start)
- Motor feet mounting only needed with over-hung casing
Compact design
Low energy consumption
- Armstrong 4280 pumps are equipped with high-efficiency NEMA-premium motors for significant reduction in energy consumption and cost.
- All motors are suitable for inverter-fed service.
Low operating risk and cost
- Universal replacement seals, bearings, and motors available locally world-wide.
- ANSI-style centerline discharge casing eliminates air binding.
- Pre-lubricated and sealed ball bearings eliminate lubrication requirements.
Related products
Armstrong 4030 End Suctionbase Mounted Pumps
- Applications — HVAC-system pumping; light industrial/ process pumping
- Description — The Armstrong 4030 horizontal end-suction (ES) pumps are engineered to substantially reduce cost over competitor designs across installation, operation, and lifetime maintenance. High-efficiency NEMA-premium motors ensure low energy consumption and cost.
- Materials (MOC) — Cast iron, ductile iron, or bronze casing, Cast iron or bronze impeller
- Configuration Inside — single spring mechanical seal.
- Performance range — Up to 5,000 USgpm (315 L/s) flow; up to 600 ft (180 m) head
- Temperature — 250°F (121°C)
- Power Range — 0.33 hp to 300 hp (0.25 kW to 200 kW)
- Size — 1" to 8” (25 mm to 200 mm)
Armstrong 4300 vertical in-line pumps
- Applications-HVAC-system pumping; light industrial/ process pumping (water or glycol based)
- Description-The Armstrong 4300 pipe-mounted pumps are designed for space-saving installation, high operating efficiency, and long service life
- Materials(MOC)-Cast, ductile iron or bronze casing, Cast iron or bronze impeller
- Configuration-Outside balanced or inside single spring mechanical seal
- Performance range-Up to 28,000 USgpm (1,800 L/s) Flow; up to 500 ft (150 m) Head
- Temperature-300oF (150oC)
- Power Range-1 hp to 1250 hp (0.75 kW to 900 kW)
- Size-1.5″ to 20” (40 mm to 500 mm)
Armstrong 4380 vertical in-line pumps
- Applications-HVAC-system pumping; light industrial/ process pumping. (water or glycol based)
- Description-The Armstrong 4380 pipe-mounted pumps are designed for space-saving installation and long service life.
- Materials(MOC)-Cast iron or ductile iron casing, Silicon sintered carbide mechanical seal, Cast iron or bronze impeller.
- Configuration-Inside single-spring mechanical seal.
- Performance range-Up to 2,500 USgpm (160 L/s) flow; up to 300 ft (90 m) head
- Temperature-250°F (121°C)
- Power Range-0.33 hp to 60 hp (0.25 kW to 45 kW)
- Size-1.5″ to 8″ (40 mm to 200 mm)
Armstrong Design Envelope Chilled-Water Integrated Plant Package
- Applications-Commercial and industrial chilled-water cooling systems.
- Description-The Armstrong Chilled-Water Integrated Plant Package combines all the equipment needed to deliver chilled water to medium to large size buildings at superior energy efficiency. The factory-assembled plant includes pumps, integrated controls, water-cooled chillers and the requisite instrumentation, valves and sensors. IPP complies with all ASHRAE 189.1 requirements and exceeds ASHRAE 90.1.
- Configuration-Variable primary with variable condenser flow. Catalogue-based pre-engineered solutions or designed to customer specification. BMS communications protocol available
Armstrong Design Envelope Integrated Pumping System (IPS 4000)
- Applications-Multi-pump control for heated – or chilled – water system optimization in buildings.
- Description-The Design Envelope Integrated Pumping System (IPS 4000) is an advanced multi-zone control that directly integrates with pumping units to optimize energy performance, system handling, and installation.
- Materials (MOC)-Enclosure, circuitry, software
- Configuration-Integrates seamlessly with Armstrong Design Envelope pumps in a headered configuration.
- Performance range-Up to 8 pumps, 16 zones (variable primary, secondary or tertiary) and 8 flow sensitive equipment (variable primary) IPS 4001w / IPS 4501w for up to 3 pumps, 3 zones and 3 flow sensitive equipment IPS 4002w / IPS 4502w for up to 4 pumps, 6 zones and 4 flow sensitive equipment IPS 4003w / IPS 4503w for up to 6 pumps, 12 zones and 6 flow sensitive equipment IPS 4004w / IPS 4504w for up to 8 pumps, 16 zones and 8 flow sensitive equipment
- Power Range-No limitations in system size and capacity.
- Size-No limitations in system size.
Armstrong Firepak Horizontal Split Case
- Applications-Fire-protection of buildings and other built infrastructure.
- Description-The Horizontal Split-Case (HSC) FirePak offering features the full range of Armstrong HSC fire pumps, electric or diesel-driven, and controller. All mounted, piped, and wired on a base at the factory.
- Materials (MOC)-Metal base, piping, pump, and control panel; switchgear; electric motor/ diesel engine
- Configuration-Optional features include jockey pump, jockey pump controller city by-pass loop, flow meter loop, main relief valve plus waste cone, and diesel fuel tank. 50 Hz and 60 Hz electric versions.
- Performance range-500 – 3000 USgpm
Armstrong Flo-Trex Valves
- Applications-HVAC-system pumping; general purpose pumping; industrial/ process pumping (water or glycol based).
- Description-The Armstrong Flo-Trex Valves (FTV) are multi-function pump fittings that reduce equipment and installation costs.
- Materials (MOC)-Cast iron, ductile iron; grooved, flanged or threaded connections.
- Performance range-Suitable for all Armstrong commercial pumps.
- Temperature-230 °F (110 °C)
- Size-1.25” to 20” (32 mm to 500 mm)
Armstrong Vortex Air Separators
- Applications-Air removal from hydronic and HVAC systems – air can get trapped during initial fill, during routine equipment maintenance (including pressure upkeep), and due to the use of cooling towers.
- Description-The Armstrong vortex air separators create a vortex or whirlpool action, sending the heavier air-free water to the outer portion of the tank, and allowing the lighter air-entrained water mixture to move into the lower-velocity center. At the center of the vortex the air is released from the water, forms bubbles and exits through an air vent or compression tank installed above it.
- Materials (MOC)-Cast iron or fabricated steel (shell), stainless steel mesh (strainer)

