Description
Caleffi 549596A Hydraulic Separator — 1″ Sweat Connection
The Caleffi 549596A is a compact hydraulic separator designed for residential and light commercial hydronic heating systems. By hydraulically decoupling the primary boiler circuit from secondary distribution circuits, this separator ensures each circuit operates independently, eliminating flow interference and allowing precise zone control. The 1″ sweat (copper) connection makes installation straightforward for hydronic professionals working with standard copper piping.
What Is a Hydraulic Separator?
A hydraulic separator — also known as a low-loss header — serves as the central interface between a boiler’s primary loop and the system’s secondary heating circuits. It neutralizes differential pressures between circuits, preventing one pump from fighting another. In addition to hydraulic decoupling, the Caleffi 549596A performs three additional critical functions simultaneously: air elimination, dirt separation, and magnetic particle removal — all in a single compact body.
Key Features
- Hydraulically decouples primary and secondary hydronic circuits for independent flow control
- Integrated air elimination removes entrained air and microbubbles from the system
- Built-in dirt separator captures sediment and particulate to protect pumps and valves
- 1″ sweat (SWT) copper connections for easy, reliable installation
- Compact, space-saving design ideal for residential and light commercial applications
- Reduces system noise, improves efficiency, and extends component life
- Caleffi quality construction for long-term hydronic system performance
System Benefits
Installing the Caleffi 549596A simplifies multi-zone hydronic system design by eliminating the need for separate air eliminators and dirt separators. The result is a cleaner mechanical room, reduced installation time, and a more reliable, efficient heating system. Compatible with modern condensing boilers and multi-zone pumping configurations.
Applications
- Residential and light commercial hydronic heating systems
- Multi-zone radiant floor heating
- Boiler primary/secondary piping configurations
- Fan coil and baseboard hydronic distribution systems
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