Automatic air separator - 2" IVAR.DISCAL 551

Product detailed description

Automatic air separators are essential components in heating and plumbing systems where air accumulation can reduce efficiency and cause damage. This model is commonly installed in residential and commercial buildings, including multi-family housing, industrial facilities, and commercial HVAC systems. Installers typically integrate these units into closed-loop systems, such as underfloor heating, central heating circuits, and hot water distribution lines. The device ensures continuous removal of entrained air, maintaining system performance and preventing corrosion and noise caused by air pockets.

Correct sizing and selection of air separators are critical to ensure efficient air removal and system compatibility. The IVAR 551009 is designed for 2 inch pipeline connections and operates at a nominal pressure of PN 10, making it suitable for a wide range of heating applications. The maximum operating temperature of +110 °C allows it to be used in high-temperature systems such as radiant heating and hot water storage units. These parameters help installers determine the suitability of the device for their specific system requirements.

Technical parameters

Material	Brass CW617N
Operating temperature	+110 °C
Nominal pressure	PN 10
EAN	8016615058048
Weight	2.298 kg
Code	551009
Brand	IVAR

The operating temperature limit of +110 °C and PN 10 pressure rating are key factors in determining the device's suitability for different system conditions. The brass CW617N construction ensures resistance to corrosion and mechanical stress, while the stainless steel internal components provide durability in aggressive environments. These properties make the separator suitable for both closed and open systems, provided the media and operating conditions align with the specified parameters.

Installation and connection

The IVAR 551009 is installed in the vertical position, with the air vent pointing upwards, to ensure proper air release. The 2 inch connection is typically threaded (BSPT or NPT, depending on regional standards), and the installer must verify the thread type to match the system piping. A common mistake is incorrect orientation, which can lead to air entrapment and reduced efficiency. It is also important to ensure that the separator is installed in a location that allows for easy access for inspection and maintenance. The device should be placed at high points in the system where air naturally accumulates, such as near the top of a circulation loop or in the return line of a heating circuit.

Compatibility and accessories

This air separator is compatible with a wide range of heating system components, including circulator pumps, expansion vessels, and heat exchangers. It is typically used in conjunction with other system components such as pressure-reducing valves and temperature sensors. No specific accessories are required for standard installation, but it is recommended to check the system design for additional requirements such as isolation valves or pressure gauges. Installers should also ensure that the system media is compatible with the materials used in the separator, particularly in systems with chemically treated water or non-standard fluids.

Technical background for designers

The IVAR 551009 operates on a float and valve mechanism, where air is continuously released as it accumulates in the chamber. The brass CW617N body provides high mechanical strength and resistance to thermal expansion, while the stainless steel internal components ensure long-term durability in wet and corrosive environments. The device is designed to integrate seamlessly into closed-loop heating systems, where it helps maintain hydraulic balance and system efficiency. The performance of the separator is influenced by factors such as flow rate, system pressure, and the presence of particulate matter in the fluid, which can affect the float mechanism over time. Proper system design and regular maintenance are essential to ensure optimal performance and service life.

Service and operation

The IVAR 551009 requires minimal maintenance due to its robust design and self-regulating operation. However, periodic inspection is recommended to ensure that the float mechanism is free from debris and that the vent is not clogged. The device should be checked during routine system maintenance to confirm that it is functioning correctly and that no air is bypassing the separator. No specific service intervals are provided in the technical data, but installers should follow standard maintenance procedures for the overall system. In case of suspected malfunction, the separator should be isolated and inspected for signs of wear or blockage.

Frequently asked questions

Can the IVAR 551009 be used in open heating systems?
Yes, the device can be used in open systems provided the operating conditions do not exceed the specified temperature and pressure limits. However, it is primarily designed for closed-loop applications.

Is the 2 inch connection compatible with metric pipe sizes?
Adaptors may be required to connect the 2 inch threaded port to metric piping. Installers should verify the thread type and use appropriate fittings to ensure a secure connection.

Can the separator be installed horizontally?
No, the device must be installed vertically with the air vent pointing upwards to ensure proper air release and prevent operational issues.

What media types are suitable for use with this separator?
The separator is suitable for use with water-based heating media. It is not recommended for use with non-standard fluids unless compatibility is confirmed with the manufacturer's technical data sheet.