Product Overview
Representing the cutting edge of pumping technology, the Armstrong H-67-1 Bronze Pump with ECM motor combines maximum corrosion resistance with exceptional energy efficiency. This advanced 1HP circulator features an all-bronze liquid end for superior durability in domestic water and corrosive applications, while its Electronically Commutated Motor (ECM) technology delivers unprecedented energy savings through intelligent, variable-speed operation.
The pump’s sophisticated control system automatically adjusts speed to match exact system demand, reducing energy consumption by up to 80% compared to fixed-speed circulators. The all-bronze construction ensures long-term reliability in potable water systems, coastal installations, and applications with aggressive water chemistry where cast iron pumps would fail. For insights into maximizing efficiency, read our blog on [Understanding ECM Technology in Commercial Pumping Applications].
As part of Armstrong’s high-efficiency series, this pump features built-in smart controls with multiple operating modes, including constant pressure, constant speed, and proportional pressure control. This intelligence, combined with the material superiority of bronze construction, makes the H-67-1 an ideal choice for engineers and facility managers seeking to reduce operating costs while ensuring system longevity. Learn about its integration capabilities in our article [Smart Pumping Systems for Modern Building Management].
Technical Specifications
| Specification | Details |
|---|---|
| Model | Armstrong H-67-1 (116511-843) |
| Motor Technology | ECM (Electronically Commutated Motor) |
| Motor Power | 1 HP (0.75 kW) |
| Connection Size | 2″ Flange x 2″ Flange |
| Impeller Material | Bronze |
| Housing Material | Bronze |
| Max Head | 60 ft (18.3 m) |
| Max Flow | 140 US gpm (530 L/min) |
| Control Options | Variable Speed with Multiple Modes |
| Max Operating Pressure | 175 psi (12.1 bar) |
| Max Fluid Temperature | 230°F (110°C) |
| Voltage | 230V, 1-Phase |
| Communication Capable | BACnet MS/TP, Modbus RTU |
Comparison Table: Armstrong ECM Bronze vs. Traditional Pumps
| Feature | Armstrong H-67-1 ECM Bronze | Standard Fixed-Speed Bronze | Competitor ECM Pump |
|---|---|---|---|
| Motor Technology | ECM Variable Speed | Fixed Speed PSC Motor | ECM Variable Speed |
| Energy Efficiency | Up to 80% Savings | Standard Efficiency | Up to 70% Savings |
| Control Flexibility | Multiple Smart Control Modes | Manual Speed Settings | Limited Control Options |
| Material Construction | All-Bronze Liquid End | All-Bronze | May Use Composite Materials |
| Communication | BACnet & Modbus Capable | None | Proprietary Protocols |
| Total Cost of Ownership | Excellent (Low Operating Cost) | Moderate | Good |
Frequently Asked Questions (FAQs)
Q1: What is the primary advantage of ECM technology in this pump?
ECM technology allows the pump to precisely match its speed and power consumption to the exact system demand, eliminating the energy waste of fixed-speed operation. This typically reduces energy consumption by 50-80% while providing superior system control and protection.
Q2: Is this pump suitable for domestic hot water recirculation systems?
Yes, the all-bronze construction makes it ideal for potable water applications, while the variable speed capability allows it to maintain precise temperature control and minimize energy consumption in domestic hot water recirculation loops.
Q3: What control options are available with this ECM circulator?
The pump offers constant pressure, constant speed, proportional pressure, and advanced custom curve control modes. These can be configured directly on the pump’s integrated display or remotely via building automation systems using BACnet or Modbus protocols.
Q4: How does the corrosion resistance compare to standard circulators?
The all-bronze construction provides superior corrosion resistance compared to cast iron pumps, making it suitable for domestic water systems, coastal environments, swimming pool applications, and facilities with aggressive water chemistry.
Q5: Can this pump be integrated with building automation systems?
Yes, with built-in BACnet MS/TP and Modbus RTU protocols, the H-67-1 can be seamlessly integrated into most building management systems for centralized monitoring, control, and alarm management. For integration guidance, see our [Armstrong Smart Pump BAS Integration Guide].
Pros and Cons
| Pros | Cons |
|---|---|
| Exceptional Energy Efficiency with ECM technology | Premium Initial Investment required |
| Superior Corrosion Resistance with all-bronze construction | Complex Programming may require technical expertise |
| Smart Control Capabilities with multiple operating modes | Higher Cost than fixed-speed bronze circulators |
| Building Automation Integration with open protocols | Electronic Complexity may require specialized service |
| Reduced System Stress through soft starting and speed control | Limited to Clean Water applications despite corrosion resistance |
| Precise System Control for optimal performance | 230V Single-Phase Power requirement |
Conclusion & Ideal Use Cases
The Armstrong H-67-1 Bronze Pump with ECM technology represents the pinnacle of intelligent, efficient fluid handling for corrosive and domestic water applications. While requiring a significant initial investment, its combination of advanced motor technology, smart controls, and superior materials delivers exceptional long-term value through dramatically reduced operating costs and extended service life.
This advanced circulator is ideally specified for:
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Large Domestic Water Systems: High-efficiency hot water recirculation in commercial buildings
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Energy-Critical Applications: Facilities focused on reducing operating costs and carbon footprint
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Coastal & Corrosive Environments: Buildings in marine climates requiring bronze construction
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Smart Building Projects: New construction with integrated building automation systems
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Retrofit Applications: Replacing outdated fixed-speed circulators for immediate energy savings
For applications not requiring variable speed control, consider the [Armstrong Fixed-Speed Bronze Circulator Series], while for smaller ECM applications, the [Armstrong H-40 Series ECM Pumps] provide similar technology in more compact sizes. The H-67-1 occupies the premium position for mid-size applications where both material compatibility and energy efficiency are critical. For efficiency standards and certifications, consult the Hydraulic Institute’s Energy Rating program (External Link).
Contact our technical specialists today for energy savings analysis, control strategy development, and specification support for your next high-efficiency pumping project.
