Armstrong Design Envelope 4302 Dualarm Pumps
- Applications-HVAC system pumping; general purpose pumping; industrial/process pumping (water or glycol based)
Armstrong Design Envelope Pumps with integrated controllers are OSHPD pre-approved! - Description-Pipe-mounted 2-pump unit with integrated intelligent controls for space-saving installation, superior energy performance, and full redundancy or parallel-pumping operation. Saves up to 75% in energy over comparable traditional constant speed or variable frequency operated pump installations.
- Materials (MOC)-Cast iron or ductile iron casing, Cast iron or bronze impeller, Sintered silicon carbide mechanical seal
- Configuration-On-board Intelligent Variable Speed controls with Sensorless or Parallel Sensorless control. Controls enclosure UL type 12 or UL type 4X (outdoor applications). Available with NEMA premium motors. Outside balanced or inside single spring mechanical seal
- Performance range-Up to 1250 USgpm flow and 250 ft head (80 L/s, 76 m)
- Temperature-250°F (121°C)
- Power Range-0.33 hp to 75 hp (0.25 kW to 55 kW)
- Size –1″ to 8” (25 mm to 200 mm)
Description
Benefits & Features
Lowest installed cost
- Vertical In-line design eliminates the need inertia bases, housekeeping pads, and flex connectors and reduces piping requirements.
- 2-pump casing for reduced footprint.
- Integrated, intelligent controls eliminate the need for procurement, installation (incl. wiring), calibration and upkeep of differential pressure sensor.
- Superior energy performance qualifies for significant cost recovery under utility and government rebate programs.
- Design Envelope selections frequently recommend a smaller motor and/or pump which reduces installed 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 pumping installations.
- Available with Parallel Sensorless control (patent pending) to provide best-efficiency staging of both pumps for additional energy savings.
- Shorter pipe runs reduce system friction
Lowest energy consumption and carbon emissions
- Integrated intelligent controls – combined with perfect component match-up and tuning – for up to 75% lower energy consumption and carbon (greenhouse gas) emissions.
- Available with Parallel Sensorless control (patent pending) for best-efficiency staging of both pumps leading to additional energy savings.
Lowest project and operating risk
- Integrated intelligent controls – combined with perfect component match-up and tuning – for fast and easy commissioning.
- Integrated intelligent controls for reduced radio frequency interference/ improved electromagnetic compatibility.
- Single source-responsibility for optimum design and field support.
- DualArm pumps are designed 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)
- ETL Listed – conforms to UL STD 778
- Certified to CSA STD C22.2 NO.108
- OSHPD Special Seismic Certification Pre-approval (OSP) No OSP-0422-10
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)
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- Size-1.5″ to 20” (40 mm to 500 mm)
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- Description-Armstrong Expansion Tanks are designed to reduce tank sizes by up to 80% over standard designs. Expansion tanks use compressed air to maintain system pressures by accepting and expelling the changing volume of water as it heats and cools. Diaphragm or bladder tank designs isolate the expanded water from the pressure controlling air cushion – which is pre-charged at the factory and can be adjusted in the field to meet final system requirements
- Materials (MOC)-Carbon steel (shell), heavy duty Butyl (diaphragm)
- Performance range-AET plain steel expansion tanks: 15 to 525 USgpm flow. AX diaphragm expansion tanks: 8 to 211 USgpm flow. Type L bladder type expansion tanks: 10 to 1056 USgpm flow.
Armstrong Firepak Vertical In-line
- Applications-Fire-protection of buildings and other built infrastructure.
- Description-The Armstrong Vertical In-line (VIL) FirePak line features the full range of VIL fire pumps with electric motor and controller. All mounted, piped, and wired on a base at the factory. The complete package is designed to fit through a standard door.
- Materials (MOC)-Metal base, piping, pump, and control panel; switchgear; electric motor.
- Configuration-Options available include jockey pump and jockey pump controller. 50 Hz and 60 Hz designs. UL, ULC, and/or FM certification
- Performance range-50 – 1500 USgpm
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- 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)
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Armstrong Vortex Air Separators
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- 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)
