Construction
- Body: carbon steel with exterior red oxide primer.
- Baffle-assisted, low-velocity air separation.
- Top air vent/expansion tank connection and bottom blowdown connection.
- Alternative construction materials available.
In-Line Air Separator
Taco AC / ACF In-Line Air Separators
AC / ACF — carbon steel, 125 psi at 375°F standard, 2"–20" (custom up to 36")
Taco AC / ACF In-Line Air Separators from Taco Comfort Solutions are carbon steel separators that remove free air from hydronic systems, with a stainless steel strainer on ACF models.
Manufactured by
Taco Comfort Solutions
Taco AC / ACF In-Line Air Separators
Review the confirmed product information, including description, features, benefits, and applications.
Taco AC/ACF Separators use a large-diameter chamber and an internal baffle to reduce fluid velocity and change flow direction, allowing air to rise to the top connection. Captured air can be vented through an automatic air vent or directed to a plain steel expansion tank, depending on the system arrangement.
AC models are supplied without a strainer; ACF models include a removable stainless steel strainer that collects larger particles. Multiple sizes, connections and pressure ratings suit different system requirements.
Pressure & Temperature
- Standard rating: 125 psi at 375°F (approximately 8.6 bar at 191°C).
- Optional working pressures: 150, 250 or 300 psi (approximately 10.3, 17.2 or 20.7 bar).
- Higher ratings on request.
Connection & Sizes
- Standard connection sizes: 2"–20"; custom sizes up to 36".
- Threaded or ANSI flanged, depending on model; grooved options available.
ACF Strainer
- Removable 304 stainless steel strainer with 3/16" perforations (approximately 4.8 mm).
- Strainer free area at least five times the nozzle opening area to limit pressure loss.
Steady Circulation
Helps reduce air locking and maintain system circulation and heat transfer.
Component Protection
Helps reduce air-related corrosion, pump damage and operating noise.
Low Pressure Loss
The large separation chamber limits pressure loss in a compact body.
Removable Strainer
The ACF strainer captures larger debris and can be removed for cleaning.
Taco AC / ACF separators remove free air in water and water/glycol circuits in commercial, institutional and industrial installations.
Hot Water Heating
Hydronic hot water heating systems.
Chilled Water Systems
Chilled water and cooling systems.
Bladder & Diaphragm Tanks
Air elimination systems with bladder or diaphragm expansion tanks.
Plain Steel Tanks
Air control systems with plain steel expansion tanks.
ASME Section VIII, Div. 1
Designed, constructed, tested and stamped to ASME Section VIII, Division 1.
National Board
National Board pressure vessel registration.
ISO 9001
The manufacturer holds ISO 9001 quality management certification.
Need support with this air separator?
Share your pipe size, flow rate, design pressure and temperature, connection type, and whether a strainer is needed, and our MEP team will support you with the suitable product information.
Other Products in Air Separators
Explore other products available within the same product category and open each page for complete technical details.
Taco 4900 Series Air & Dirt Separators
View confirmed product details and technical information for Taco 4900 Series Air & Dirt Separators.
Taco 5900 FlexBalance Hydraulic Separators
View confirmed product details and technical information for Taco 5900 FlexBalance Hydraulic Separators.
Taco ACT / ACTF Tangential Air Separators
View confirmed product details and technical information for Taco ACT / ACTF Tangential Air Separators.