CALEFFI 551005A Air Separator Fnpt 3/4 150 32-250F

( Brand: Caleffi ), ( Part Type: Air Separator Bra ), ( Manufacturer Part Number: 551005A )

Review CALEFFI Air Separator 3/4 Inch Brass 150 Psi 32-250f Fnpt

The Caleffi 551005A Air Separator is an essential component for any hydronic heating or cooling system. This high-performance air separator is specifically designed for applications with a flow rate between 150 and 32 gallons per minute (GPM) and a nominal pipe size of 3/4 inch.

The 551005A model from Caleffi's extensive product range is a diaphragm type separator featuring a FNPT (Flanged, National Pipe Thread) connection. Its innovative design ensures effective separation of air from the hydronic fluid, maintaining a uniform flow and preventing unwanted noise and vibration caused by trapped air pockets.

This air separator boasts a number of advanced features. The diaphragm is made from a high-quality elastomer material, providing excellent flexibility and durability. The air discharge vent is adjustable, enabling fine-tuning of the separation process to optimize system performance. The compact size and sleek design make the 551005A an ideal choice for installation in confined spaces or where a visually appealing solution is required.

Moreover, the Caleffi 551005A Air Separator is built to last. It is constructed from corrosion-resistant materials, ensuring reliable operation even in harsh environments. The unit is easy to install and maintain, with readily accessible service points and simple operation.

In summary, the Caleffi 551005A Air Separator is a high-performance and versatile solution for addressing air separation needs in hydronic heating and cooling systems. With its advanced design, durable construction, and user-friendly features, this separator is an excellent choice for ensuring optimal system performance and longevity.

The Caleffi 551005A Air Separator is a popular choice for heating systems due to its efficient air separation capabilities. Here are some pros and cons that may help you make an informed decision about purchasing this product.

1. Effective Air Separation: The Caleffi 551005A Air Separator is designed to remove up to 99% of the dissolved air from the heating system, which can help improve system performance and reduce noise.

2. Compact Design: This air separator has a compact design, making it easy to install in various types of heating systems, including radiator, underfloor, and hydronic fan convectors.

3. Easy Installation: The Caleffi 551005A Air Separator can be easily installed in the return line of the heating system, and it requires no additional power source or maintenance.

4. Material: The air separator is made of high-quality stainless steel, which makes it durable and resistant to corrosion.

5. Flow Rate: This air separator can handle a flow rate of up to 32 GPM (gallons per minute), making it suitable for larger heating systems.

1. Price: The Caleffi 551005A Air Separator is more expensive than some other air separators on the market.

2. Size: Although the air separator has a compact design, it may still require additional space in the heating system for installation.

3. Installation Requirements: Proper installation of the air separator is essential to ensure its effectiveness. Improper installation could result in inefficient air separation and reduced system performance.

In conclusion, the Caleffi 551005A Air Separator is an effective solution for removing dissolved air from heating systems, and its compact design and easy installation make it a popular choice among heating professionals. However, its higher price point may be a deterrent for some homeowners or small businesses. Ultimately, if you're looking for a reliable and efficient air separator for your heating system, the Caleffi 551005A Air Separator is a solid choice. It's recommended to consult with a heating professional to ensure proper installation and to determine if this product is the best fit for your specific heating system.

Details:

Caleffi 551005A 3/4 NPT DIRTMAG magnetic dirt separator, made in Italy. Helps extend life of pumps, valves, and heat exchanges. Whats Included. Connection Size: 3/4 NPT.

Designed for hydroponic heating and cooling systems, this unit removes both ferrous magnetic non-ferrous impurities to protect system components improve efficiency. Max Pressure: 150 PSI. Condition: New Open Box. Country/Region of Manufacture: Italy.

Item Specifics. Model: 551005A. Type: Magnetic Dirt Separator DIRTMAG. Instruction sheet.

Brand: Caleffi. Material: Brass body. Key Features. Ideal for residential or commercial HVAC systems, boilers, and radiant heating setups.

Original box shows light wear see photos. Original packaging. Type: Dirt Separator. Removable magnetic collar for easy cleaning.

part #: 551005a prices

• $117.65-$183.92

specifications aerationaura:

• brand: Caleffi
• part type: Air Separator Bra
• manufacturer part number: 551005A

offer aerationaura:

• started: April 2, 2026
• options: Ship-to-home
• quantity: 1
• sold: 0
• availability: In Stock

payments aerationaura:

• other
• wallet: Paypal
• credit card: Discover

seller aerationaura:

• # reviews: 1963
• city: City of Industry, California
• rating: 99.9%

general aerationaura:

• Home Improvement > Heating, Cooling Air > Other Heating, Cooling Air
• condition: Open box

returns aerationaura:

• method: Money back
• paid by: Buyer
• time: 60 Days
• policy: Returns Accepted

shipping aerationaura:

• transit: 2-6 Days
• type: Fixed
• service: Standard, USPS Priority Mail
• carrier: USPS
• class: Standard, Expedited
• cost: $18.97

Caleffi 551005A Is Similar To:

• Caleffi 016615068610 508013a Hygroscopic Air Vent 1 8-inch Npt Male (42.4% similar) Is the leading Italian manufacturer of high-quality components for heating, conditioning and plumbing systems supplier high performance hydro id solutions. Manual closed operation by unscrewing knob, connection: 1/8-INCH npt male, maximum working pressure: 150 psi...(December 14th, 2024)
• Caleffi 642415188074 502015a High Capacity Automatic Air Vent 1 8-inch Npt Male (40.3% similar) Enhance system performance and life expectancy, connection type: threaded, size: 0.13-INCH is the leading Italian manufacturer of high-quality components for heating, conditioning plumbing systems supplier high hydro id solutions. Is the leading Italian manufacturer of high...(February 6th, 2025)
• Caleffi 502243a New Lot 2 High Capacity 1 2 Npt M Air Vent Free Shipping (30.7% similar) New, lot 2 Caleffi 502243A high capacity 1/2 npt m air vent, free shipping. Sarasota fl 34240. 2031 global court...(February 25th, 2025)
• Air Vent 502620a Caleffi 1 4 Inch Npt Automatic (33.9% similar) Caleffi 502620A 1/4 npt automatic air vent...(March 14th, 2025)
• Caleffi 502115a 1 8-inch Npt Automatic Air Vent New (33.9% similar) Part #: Caleffi 502115A for sale...(April 24th, 2025)
• Caleffi 521619ac Thermostatic Mixing Valve 1 Inch Brass 200 Psi 85-150f Sweat New (56.2% similar) New in box, comes with what is shown...(December 14th, 2025)
• Caleffi 502043a Minical 1 2 Inch Mpt High Capacity Air Vent New In Box (36.5% similar) Mpn: 502043A. This model features a durable brass construction with 1/2 inch fnpt connection, suitable for both heating and cooling systems. Items come only with what is shown in the pictures, nothing more and less unless stated. Please see photos. Free shipping. I m known for my fast...(December 20th, 2025)
• Caleffi 521416a 3-way Mixing Valve 1 2 Inch Brass 150f 200psi Press Connection (50.3% similar) The Caleffi 521416A 3-WAY mixing valve is a high-quality brass valve designed for heating, cooling, and air systems. With a 1/2 press connection, this valve is capable of mixing hot and cold water to maximum temperature 150F with pressure rating 200PSI. The Caleffi brand is known for its durable...(March 8th, 2026)
• Caleffi 551006a Discal Air Separator 1 Inch Fnpt Brass (67.2% similar) With a 1 inch fnpt connection, it effectively separates air from liquid to ensure efficient operation. The Caleffi 551006A fiscal air separator is a high-quality brass separator designed for heating and cooling systems...(May 26th, 2026)