CALEFFI 551035 Npt Air Separator Box 551007A 1-1/4

( Brand: Caleffi ), ( Manufacturer Part Number: 551035 ), ( Part Type: Box )

Review CALEFFI 1-1/4 Inch Npt Air Separator New Box Worn

The Caleffi 551035 551007A 1-1/4 NPT Air Separator Box is an essential hydronic system component engineered to effectively remove dissolved air from hot water circulating in heating and cooling applications. Designed and manufactured by Caleffi, a leading name in hydronic technology, this product is known for its superior quality and performance.

The air separator box features a compact, cylindrical design with a 1-1/4 NPT thread connection. Measuring approximately 11 inches in height and 3 inches in diameter, it is suitable for installation in various applications where space is a concern. The unit is constructed from high-quality, corrosion-resistant materials, ensuring durability and longevity in demanding environments.

The Caleffi air separator operates based on the principle of buoyancy, where air rises to the top of the separator, collects in the floating disc, and is released through the vent back into the atmosphere. This continuous process prevents the formation of air bubbles in the circulating water, reducing the risk of noise and system inefficiencies.

The 551035 551007A air separator box is designed to accommodate a wide range of fluid temperatures and flows. It is ideal for use in hydronic heating and cooling systems, solar thermal installations, and various industrial processes where air removal is critical for system performance and reliability.

Installation of the air separator is simple and straightforward. It can be easily installed on the return line, allowing for efficient use of available space. The vent connection can be connected to a suitable venting system, such as an open vent or a pressure relief valve, depending on the specific application requirements.

The Caleffi 551035 551007A 1-1/4 NPT Air Separator Box is an indispensable tool for maintaining a well-functioning hydronic system. By effectively removing dissolved air, it promotes improved system efficiency, reduced noise levels, and extended component lifespan. With its robust construction, user-friendly design, and proven performance, this air separator is an excellent investment for any hydronic application.

Caleffi 551035 551007A 1-1/4 NPT Air Separator Box: A Comprehensive Analysis

The Caleffi 551035 551007A 1-1/4 NPT Air Separator Box is a popular choice for addressing air and other non-condensable gas issues in hydronic heating systems. In this analysis, we will discuss its key features, advantages, and disadvantages to help you make an informed decision.

1. Compact design for easy installation

2. Self-priming capability

3. Two-chamber design for efficient air separation

4. Suitable for temperatures up to 212 F (100 C)

5. Constructed of high-quality materials

1. Effective at removing air and other non-condensable gases from hydronic heating systems

2. Self-priming capability reduces the need for manual intervention during installation and maintenance

3. Compact design allows for easier installation in limited spaces

4. Two-chamber design ensures efficient separation of air and water, resulting in improved system performance

5. Constructed of high-quality materials ensures durability and longevity

1. Higher price point compared to some other air separators

2. May require periodic maintenance to ensure optimal performance

3. Limited capacity for larger systems

The Caleffi 551035 551007A 1-1/4 NPT Air Separator Box is a high-performing and reliable solution for addressing air and non-condensable gas issues in hydronic heating systems. Its self-priming capability, compact design, and efficient air separation make it a popular choice among professionals and DIY enthusiasts alike. However, its higher price point and the need for periodic maintenance are potential drawbacks. Ultimately, if you are looking for a reliable and effective air separator for your hydronic heating system, the Caleffi 551035 551007A is a strong recommendation.

If you are in the market for an air separator for your hydronic heating system, we recommend considering the Caleffi 551035 551007A 1-1/4 NPT Air Separator Box. Its self-priming capability, compact design, and efficient air separation make it a worthwhile investment for improving system performance and reducing the need for costly repairs. However, be sure to factor in the higher price point and potential need for periodic maintenance when making your decision.

Details:

Never installed. Brand new Caleffi 551007A air separator, 1-1/4 NPT connection. Box shows visible wear from storage. Made in Italy.

part #: 551035 prices

• $218.37-$233.45

specifications toolssupp:

• brand: Caleffi
• mpn: 551035
• part type: Box

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• policy: No Returns

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• condition: New other see details
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• started: July 18, 2025
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• cost: $11.37
• type: Calculated
• class: Standard
• transit: 5-11 Days
• carrier: USPS

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