Fernox Product Catalogue |
CA1 Air Separator instructions leaflet |
Separator Quick Start Guide |
Designed for commercial and industrial closed-loop heating and chilled water systems, the Fernox CA1 Air Separator is typically installed on the main flow or return line, preferably at high turbulence points to maximise air separation. It is suitable for a wide range of commercial applications, including plant rooms, hospitals, schools, office buildings and other large commercial facilities.
High-efficiency separation – The CA1 is designed to separate both entrained air and microbubbles from the circulating fluid. As the water passes through the separator, the internal design promotes the collection of air, which is then automatically discharged through the integrated air vent.
Optimised flow design – The internal flow path has been designed to support effective air separation while maintaining a low pressure drop through the unit. This allows the CA1 to operate efficiently without unnecessarily restricting system flow.
Robust construction – The CA1 features a corrosion-resistant coated carbon steel body designed for long-term use in commercial heating and cooling systems. Flanged connections provide a secure connection for installation within commercial plant rooms and HVAC systems.
Maintenance-free operation – Once installed, the CA1 operates continuously without moving parts or consumable components. The integrated automatic air vent releases separated air without requiring manual intervention.
• Body Material: Carbon steel
• Finish: Corrosion-resistant industrial coating
• Flanged Connections: DN50–DN150, EN 1092-1 / PN16
• Air Vent Connection: 1/2” BSP
• Installation Orientation: Horizontal pipework
Each CA1 unit is supplied fully assembled and hydrostatically tested at >15 bar. The unit includes a factory-installed automatic air vent and lifting lugs for larger sizes. No special storage conditions are required. Installation must be carried out by qualified personnel in accordance with system specifications and safety guidelines.
Maximum Operating Pressure: 10 bar
Test Pressure: >15 bar
Max. Static head: 15m (Heating), 5m (Cooling)
Operating Temperature Range: 0 – 110°C
Installation Orientation: Horizontal pipework
Connection Type: Flanged
Suitable Fluids:
• Water
• Glycol-water mixtures (up to 50%)
Operating Principle
System water enters the CA1 and passes through an internal geometry that reduces flow velocity and encourages the release of entrained air. Microbubbles coagulate and rise to the upper chamber and are expelled via the integrated automatic air vent. This continuous process helps reduce internal corrosion, noise, and circulation problems, without requiring maintenance or system shutdown.