Caleffi 551066A

Caleffi 551066A Discal Air Separator with a 1-inch press connection is a compact, high-efficiency air separator designed for modern hydronic systems. By removing entrained air from circulating water, it improves heat transfer, reduces pump wear, prevents cavitation, and minimizes noise in heating and cooling circuits. The 1-inch press connection enables straightforward installation in tight spaces and retrofit projects, helping you preserve space without sacrificing performance. This device is ideal for residential and light commercial installations where reliable air management is critical to system efficiency.

Engineered by Caleffi, this model delivers consistent air removal across varying loads and temperatures, contributing to better energy efficiency and longer equipment life. Its robust construction and dependable performance make the 551066A a trusted choice for professional installers seeking durable hydronic components. Use it to optimize circulating water quality, protect pumps, and maintain steady system operation in a wide range of boiler, radiant, and cooling applications.

• 1-inch press connection for straightforward installation
• Efficient air removal to improve overall system performance
• Compact, durable construction from a trusted brand
• Suitable for residential and light commercial hydronic applications