Description
Overview
The Armstrong H52 Series In-Line Circulator Pump is a professional-grade solution engineered for efficient, dependable fluid circulation in hydronic heating and cooling systems, as well as a wide range of industrial HVAC applications. With a 1/3 HP motor, 115V single-phase power, and a flow capacity of up to 52 GPM, this pump delivers the performance and reliability that demanding installations require.
Product Highlights
Designed with a radially-split body, this circulator pump stays fully in-line during servicing — eliminating the need to disconnect piping and dramatically reducing downtime. The cast iron body pairs with a non-ferrous impeller to ensure long-lasting durability across diverse operating environments, while the oversized maintenance-free stainless steel shaft adds an extra layer of long-term reliability.
- Radially-split body allows in-line servicing without pipe disconnection
- Simple modular construction for fast, straightforward maintenance and part replacement
- Bronze-fitted, radially-split body for enhanced corrosion resistance
- Oversized maintenance-free stainless steel shaft for extended service life
- Efficient centrifugal impeller optimizes fluid circulation performance
- Cast iron body with non-ferrous impeller for durability in varied environments
- Delivers up to 52 GPM flow rate with a maximum head of 26 feet
Technical Specifications
- Power: 1/3 HP
- Voltage: 115V, 60 Hz, 1 Phase
- Flow Rate: 0 – 52 GPM
- Maximum Head: 26 feet
- Max Operating Temperature: 230°F
- Connection Type: 1-1/4 inch Flanged







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