Description
Product Overview
The Armstrong 116463-132 H-63-1 represents a reliable and efficient solution for residential and light commercial hydronic heating and cooling systems. This versatile 1/2 HP circulator combines a durable cast iron construction with a maintenance-free wet-rotor design, delivering quiet, energy-efficient performance for closed-loop applications. Its robust design ensures years of trouble-free service in boiler systems, radiant floor heating, and snow melt applications.
The pump features Armstrong’s advanced hydraulic engineering, providing optimal flow characteristics for medium-duty circulating applications. The wet-rotor technology eliminates the need for coupling alignment and separate motor lubrication, while the corrosion-resistant brass impeller ensures long-term durability. With its compact, inline configuration and standard flange connections, the H-63-1 installs easily in space-constrained mechanical rooms while providing dependable fluid movement throughout your hydronic system.
As part of Armstrong’s proven H-63 series, this circulator continues a tradition of quality that HVAC professionals have trusted for decades. Whether you’re replacing a failed circulator or specifying a new hydronic system, the H-63-1 delivers the consistent performance needed to maintain optimal comfort and system efficiency through every heating season.
Technical Specifications
| Specification | Details |
|---|---|
| Model | Armstrong H-63-1 (116463-132) |
| Motor Power | 1/2 HP (0.37 kW) |
| Connection Size | 1-1/4″ Flange x 1-1/4″ Flange |
| Impeller Material | Brass |
| Housing Material | Cast Iron |
| Max Head | 28 ft (8.5 m) |
| Max Flow | 85 US gpm (322 L/min) |
| Speed Settings | Single Speed |
| Max Operating Pressure | 125 psi (8.6 bar) |
| Max Fluid Temperature | 230°F (110°C) |
| Voltage | 115V, 1-Phase |
| Weight | 25 lbs (11.3 kg) |
Comparison Table: Armstrong H-63-1 vs. Alternative Circulators
| Feature | Armstrong H-63-1 | Competitor A (Basic Circulator) | Competitor B (High-Efficiency) |
|---|---|---|---|
| Construction | Cast Iron/Brass – Durable | Composite Materials | Cast Iron/Bronze |
| Efficiency | Good – Wet Rotor Design | Standard | Excellent – ECM Motor |
| Noise Level | Quiet Operation | Moderate | Very Quiet |
| Maintenance | Maintenance-Free | Maintenance-Free | Maintenance-Free |
| Price Point | Mid-Range | Economy | Premium |
| Application Range | Residential/Light Commercial | Residential | Residential/Commercial |
Frequently Asked Questions (FAQs)
Q1: What type of heating systems is this pump best suited for?
The H-63-1 is ideal for residential hydronic heating systems including boiler-based radiator systems, baseboard hydronic heating, radiant floor heating, and snow melt systems. Its 1/2 HP motor provides ample power for most single-family homes and small commercial applications.
Q2: Can this pump be used for domestic hot water recirculation?
No, the H-63-1 is designed for closed-loop heating systems only. The cast iron construction is not suitable for potable water applications. For domestic hot water recirculation, consider Armstrong’s bronze circulator series which are specifically designed for potable water.
Q3: What is the advantage of the wet-rotor design?
The wet-rotor design means the pump operates quietly and requires no maintenance – no lubrication, no mechanical seals to replace. The system fluid lubricates and cools the motor bearings, ensuring long, trouble-free service life.
Q4: Is this pump suitable for both heating and chilled water applications?
Yes, the H-63-1 is designed for closed-loop hydronic systems and works effectively in both heating and cooling applications within its published temperature and pressure ratings.
Q5: What is the expected service life of this circulator?
With proper installation and a clean system, the H-63-1 typically provides 10-15 years of reliable service. The wet-rotor design and quality construction contribute to its longevity in residential and light commercial applications.
Pros and Cons
| Pros | Cons |
|---|---|
| Proven Reliability in hydronic applications | Not for Potable Water applications |
| Maintenance-Free Operation with wet-rotor design | Single-Speed Operation limits performance tuning |
| Quiet Performance ideal for residential use | Cast Iron Construction susceptible to rust if not properly maintained |
| Energy Efficient design reduces operating costs | Heavier than Composite-Bodied Pumps |
| Easy Installation with standard flange connections | Standard Efficiency compared to ECM models |
| Cost-Effective for most residential applications |
Conclusion & Ideal Use Cases
The Armstrong H-63-1 Cast Iron Pump delivers reliable, cost-effective circulation for residential and light commercial hydronic systems where initial cost and proven performance are key considerations. Its maintenance-free design and robust construction make it an excellent value for typical heating applications.
This circulator is perfectly suited for:
-
Residential Hydronic Heating: Boiler-based systems in single-family homes
-
Radiant Floor Heating: Circulation for slab and staple-up radiant systems
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Snow Melt Systems: Circulating glycol solutions for driveway and walkway snow melt
-
Light Commercial Buildings: Heating systems in small offices and multi-unit residences
For applications requiring variable speed control, consider Armstrong’s ECM high-efficiency circulator series. However, for standard-efficiency applications where initial cost matters, the H-63-1 remains a dependable choice that professionals continue to specify and install with confidence.
Contact our HVAC specialists today for assistance in selecting the right circulator for your heating system and to learn about our competitive pricing on this reliable workhorse circulator.
